Network Working Group L. Xia
Internet-Draft G. Zheng
Intended status: Standards Track Huawei
Expires: March 11, 2018 September 07, 2017

The Data Model of Network Infrastructure Device Data Plane Security Baseline
draft-xia-sacm-nid-dp-security-baseline-00

Abstract

The following contents propose part of the security baseline YANG output for network infrastructure device: data plane security baseline. The companion documents [I-D.ietf- dong-sacm-nid-cp-security-baseline], [I-D.ietf-lin-sacm-nid-mp-security-baseline], [I-D.ietf-xia-sacm-nid-app-infr-layers-security-baseline] cover other parts of the security baseline YANG output for network infrastructure device respectively: control plane security baseline, management plane security baseline, application layer and infrastructure layer security baseline.

Status of This Memo

This Internet-Draft is submitted in full conformance with the provisions of BCP 78 and BCP 79.

Internet-Drafts are working documents of the Internet Engineering Task Force (IETF). Note that other groups may also distribute working documents as Internet-Drafts. The list of current Internet-Drafts is at https://datatracker.ietf.org/drafts/current/.

Internet-Drafts are draft documents valid for a maximum of six months and may be updated, replaced, or obsoleted by other documents at any time. It is inappropriate to use Internet-Drafts as reference material or to cite them other than as "work in progress."

This Internet-Draft will expire on March 11, 2018.

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Table of Contents

1. Introduction

1.1. Objective

Network security is an integral part of the overall network deployment and operation. Due to some basic reasons, network infrastructure devices (e.g. switches, routers, firewalls) are always the objectives or exploited by the network attackers to bring damages to the victim network:

Apparently, the importantance of ensuring the security of the network infrastructure devices is out of question. To secure the network infrastructure devices, one important task is to identify as far as possible the threats and vulnerabilities in the device itself, such as: unnecessary services, insecure configurations, abnormal status, etc, then enforce the security hardening measurements, such as: update patching, modify the security configuration, enhance the security mechanism, etc. We call this task the developing and deploying the security baseline for the network infrastructure, which provides a solid foundation for the overall network security. This document aims to describe the security baseline for the network infrastructure, which is called security baseline in short in this document.

1.2. Security Baseline

Basically, security baseline can be designed and deployed into different layers of the devices:

1.3. Security Baseline Data Model Design

The security baseline varies according to many factors, like: different device types (i.e., router, switch, firewall), the supporting security features of device, the specific security requirements of network operator. It's impossible to design a complete set for it, so this document and the companion ones are going to propose the most important and universal points of them. More points can be added in future following the data model scheme specified in this document.

[I-D.ietf-birkholz-sacm-yang-content] defines a method of constructing the YANG data model scheme for the security posture assessment of the network infrastructure device by brokering of YANG push telemetry via SACM statements. The basic steps are:

In this document, we follow the same way as [I-D.ietf-birkholz-sacm-yang-content] to define the YANG output for network infrastructure device security baseline posture based on the SACM information model definition [I-D.ietf-sacm-information-model].

1.4. Summary

The following contents propose part of the security baseline YANG output for network infrastructure device: data plane security baseline. The companion documents [I-D.ietf- dong-sacm-nid-cp-security-baseline], [I-D.ietf-lin-sacm-nid-mp-security-baseline], [I-D.ietf-xia-sacm-nid-app-infr-layers-security-baseline] cover other parts of the security baseline YANG output for network infrastructure device respectively: control plane security baseline, management plane security baseline, application layer and infrastructure layer security baseline.

2. Terminology

2.1. Key Words

The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be interpreted as described in [RFC2119].

2.2. Definition of Terms

This document uses the terms defined in [I-D.draft-ietf-sacm-terminology].

3. Tree Diagrams

A simplified graphical representation of the data model is used in this document. The meaning of the symbols in these diagrams is as follows:

4. Data Model Structure

As the network infrastructure device, it makes decision of the forwarding path based on the IP/MAC address and sends the packet in data plane, and the NP or ASIC are the main components for the data plane functions.

Some overall introduction is to be added!

4.1. Layer 2 protection

Mac table is the key resource in terms of layer 2 forwarding, also easily attacked by learning massive invalid mac address. the mac limit function is to protect the mac table by limiting the maximum number of learned mac address in appointed interfaces. The mac address is not learned and the packet is discarded when the up-limit is reached, and the alarm is created possibly.

If the broadcast traffic is not suppressed in layer 2 network (i.e., Ethernet), a great amount of network bandwidth is consumed by a great deal of broadcast traffic. The network performance is degraded, even interrupting the communication.In such a case, configuring the broadcast traffic suppression on the device to ensure some bandwidth can be reserved for unicast traffic forwarding when broadcast traffic bursts across the network.It's flexible to configure the device to suppress broadcast, multicast, and unknown unicast traffic on an interface, a specified interface in a VLAN, a sub-interface, and over a virtual switch instance (VSI) pseudo wire (PW).

module: ietf-mac-limit
    +--rw mac
       +--rw macLimitRules
       |  +--rw macLimitRule* [ruleName]
       |     +--rw ruleName    string
       |     +--rw maximum     uint32
       |     +--rw rate?       uint16
       |     +--rw action?     macLimitForward
       |     +--rw alarm?      macEnableStatus
       +--rw vlanMacLimits
       |  +--rw vlanMacLimit* [vlanId]
       |     +--rw vlanId     macVlanId
       |     +--rw maximum    uint32
       |     +--rw rate?      uint16
       |     +--rw action?    macLimitForward
       |     +--rw alarm?     macEnableStatus
       +--rw vsiMacLimits
       |  +--rw vsiMacLimit* [vsiName]
       |     +--rw vsiName          string
       |     +--rw maximum          uint32
       |     +--rw rate?            uint16
       |     +--rw action?          macLimitForward
       |     +--rw alarm?           macEnableStatus
       +--rw bdMacLimits
       |  +--rw bdMacLimit* [bdId]
       |     +--rw bdId       uint32
       |     +--rw maximum    uint32
       |     +--rw rate?      uint16
       |     +--rw action?    macLimitForward
       |     +--rw alarm?     macEnableStatus
       +--rw pwMacLimits
       |  +--rw pwMacLimit* [vsiName pwName]
       |     +--rw vsiName    string
       |     +--rw pwName     string
       |     +--rw maximum    uint32
       |     +--rw rate?      uint16
       |     +--rw action?    macLimitForward
       |     +--rw alarm?     macEnableStatus
       +--rw ifMacLimits
       |  +--rw ifMacLimit* [ifName limitType]
       |     +--rw ifName       pub-type:ifName
       |     +--rw limitType    limitType
       |     +--rw ruleName?    -> /mac/macLimitRules/macLimitRule/ruleName
       |     +--rw maximum      uint32
       |     +--rw rate?        uint16
       |     +--rw action?      macLimitForward
       |     +--rw alarm?       macEnableStatus
       +--rw ifVlanMacLimits
       |  +--ro ifVlanMacLimit* [ifName vlanBegin limitType]
       |     +--ro ifName       pub-type:ifName
       |     +--ro vlanBegin    macVlanId
       |     +--ro vlanEnd?     macVlanId
       |     +--ro limitType    limitType
       |     +--ro ruleName?    -> /mac/macLimitRules/macLimitRule/ruleName
       |     +--ro maximum      uint32
       |     +--ro rate         uint16
       |     +--ro action?      macLimitForward
       |     +--ro alarm?       macEnableStatus
       +--rw subifMacLimits
       |  +--rw subifMacLimit* [ifName limitType]
       |     +--rw ifName       pub-type:ifName
       |     +--rw limitType    limitType
       |     +--ro vsiName      string
       |     +--rw ruleName     string
       |     +--rw maximum      uint32
       |     +--rw rate?        uint16
       |     +--rw action?      macLimitForward
       |     +--rw alarm?       macEnableStatus
       +--rw vsiStormSupps
       |  +--rw vsiStormSupp* [vsiName suppressType]
       |     +--rw vsiName         string
       |     +--rw suppressType    suppressType
       |     +--rw percent?        uint64
       |     +--rw packets?        uint64
       |     +--rw cir?            uint64
       |     +--rw cbs?            uint64
       +--rw vlanStormSupps
       |  +--rw vlanStormSupp* [vlanId suppressType]
       |     +--rw vlanId          macVlanId
       |     +--rw suppressType    suppressType
       |     +--rw percent?        uint64
       |     +--rw packets?        uint64
       |     +--rw cir?            uint64
       |     +--rw cbs?            uint64
       +--rw pwSuppresss
       |  +--rw pwSuppress* [vsiName pwName suppressType]
       |     +--rw vsiName         string
       |     +--rw pwName          string
       |     +--rw suppressType    suppressType
       |     +--rw percent?        uint64
       |     +--rw packets?        uint64
       |     +--rw cir?            uint64
       |     +--rw cbs?            uint64
       +--rw vsiTotalNumbers
       |  +--ro vsiTotalNumber* [vsiName slotId macType]
       |     +--ro vsiName    string
       |     +--ro slotId     string
       |     +--ro macType    macType
       |     +--ro number     uint32
       +--rw ifStormSupps
       |  +--rw ifStormSupp* [ifName suppressType]
       |     +--rw ifName          pub-type:ifName
       |     +--rw suppressType    suppressType
       |     +--rw direction       directionType
       |     +--rw percent?        uint64
       |     +--rw packets?        uint64
       |     +--rw cir?            uint64
       |     +--rw cbs?            uint64
       +--rw ifStormBlocks
       |  +--rw ifStormBlock* [ifName blockType direction]
       |     +--rw ifName       pub-type:ifName
       |     +--rw blockType    suppressType
       |     +--rw direction    directionType
       +--rw ifStormContrls
          +--rw ifStormContrl* [ifName]
             +--rw ifName                      pub-type:ifName
             +--rw action?                     stormCtrlActionType
             +--rw trapEnable?                 enableType
             +--rw logEnable?                  enableType
             +--rw interval?                   uint64
             +--rw ifPacketContrlAttributes
             |  +--rw ifPacketContrlAttribute* [packetType]
             |     +--rw packetType    stormCtrlType
             |     +--rw rateType?     stormCtrlRateType
             |     +--rw minRate       uint32
             |     +--rw maxRate       uint64
             +--rw ifstormContrlInfos
                +--ro ifstormContrlInfo* [packetType]
                   +--ro packetType        stormCtrlType
                   +--ro punishStatus?     stormCtrlActionType
                   +--ro lastPunishTime?   string

4.2. ARP

ARP security is set of functions to protect the ARP protocol and networks against malicious attacks so that the network communication keeps stable and important user information is protected, which mainly includes:

module: ietf-arp-sec
    +--ro arp-sec
       +--ro arpInterfaces
       |  +--rw arpInterface* [ifName]
       |     +--rw ifName                   -> /ifm:ifm/interfaces/interface/ifName
       |     +--rw arpLearnDisable?         boolean  //arp-learning-control
       |     +--rw arpLearnStrict?          arpStrictLearn  //arp-learning-control
       |     +--rw fakeExpireTime?          uint32   //arp-fake-expire-time?  
       |     +--rw dstMacCheck?             boolean  //validate
       |     +--rw srcMacCheck?             boolean  //validate
       +--rw secArpGrats
       |  +--rw secArpGrat* [ifName]
       |     +--rw ifName    -> /ifm:ifm/interfaces/interface/ifName
       +--rw secArpChkIpEns
       |  +--rw secArpChkIpEn* [ifName]
       |     +--rw ifName    -> /ifm:ifm/interfaces/interface/ifName
       +--rw secArpMacIlls
       |  +--rw secArpMacIll* [ifName]
       |     +--rw ifName    -> /ifm:ifm/interfaces/interface/ifName
       +--rw secArpReqNoBlks
       |  +--rw secArpReqNoBlk* [ifName]
       |     +--rw ifName    -> /ifm:ifm/interfaces/interface/ifName
       +--ro secDisArpChks
       |  +--ro secDisArpChk* [secSlotId secChkType]
       |     +--ro secSlotId        -> /devm:devm/lpuBoards/lpuBoard/position
       |     +--ro secChkType       cpudefendArpAttackType
       |     +--ro secTotalPkts?    uint64
       |     +--ro secPassedPkts?   uint64
       |     +--ro secDropedPkts?   uint64
       +--ro arpIfLimits //arp-table-limit
       |  +--rw arpIfLimit* [ifName vlanId]
       |     +--rw ifName        -> /ifm:ifm/interfaces/interface/ifName
       |     +--rw vlanId        uint16
       |     +--rw limitNum      uint32
       |     +--ro learnedNum?   uint32
       +--ro arpSpeedLimits  // arp-speed-limit
       |  +--rw arpSpeedLimit* [slotId suppressType ipType]
       |     +--rw slotId           string
       |     +--rw suppressType     enumeration 
       |     +--rw ipType           enumeration 
        |     +--rw suppressValue    uint32
       +--ro arpGlobalSpeedLimits  // arp-speed-limit
          +--rw arpGSpeedLimit* [gSuppressType gIpType]
             +--rw gSuppressType     arpSuppType
             +--rw gIpType           arpSuppIpType
             +--rw gPortType?        enumeration
             +--rw gSuppressValue    uint32

4.3. URPF

Unicast Reverse Path Forwarding (URPF) is a technology used to defend against network attacks based on source address spoofing. Generally, upon receiving a packet, a router first obtains the destination IP address of the packet and then searches the forwarding table for a route to the destination address. If the router finds such a route, it forwards the packet; otherwise, it discards the packet. A URPF-enabled router, however, obtains the source IP address of a received packet and searches for a route to the source address. If the router fails to find the route, it considers that the source address is a forged one and discards the packet. In this manner, URPF can effectively protect against malicious attacks that are launched by changing the source addresses of packets.

URPF can be performed in strict or loose mode. The strict mode checks both the existence of source address in the route table and the interface consistency, while loose mode only checks if the source address is in the route table. In some case, the router may have only one default route to the router of the ISP. Therefore, matching the default route entry needs to be supported.

URPF can be performed over interface, defined flow and traffic sent to local CPU.

module: ietf-urpf-sec
    +--rw urpf-security
       +--rw interface-urpf* [ifname]
       |  +--rw ifname           if:interface-ref
       |  +--rw mode?            enumeration
       |  +--rw allow-default?   boolean
       +--rw qosClassifiers
       |  +--rw qosClassifier* [classifierName operator]
       |     +--rw classifierName      qosPolicyName
       |     +--rw description?        string
       |     +--rw operator            qosClassOperator
       |     +--rw qosRuleAnys
       |     |  +--rw qosRuleAny* [protoFamily]
       |     |     +--rw protoFamily    qosIPFamily
       |     +--rw qosRuleMacs
       |     |  +--rw qosRuleMac* [macType macAddr]
       |     |     +--rw macType    qosMacType
       |     |     +--rw macAddr    pub-type:macAddress
       |     +--rw qosRuleProto6s
       |     |  +--rw qosRuleProto6* [protoFamily protocol]
       |     |     +--rw protoFamily    qosIPv6Family
       |     |     +--rw protocol       uint8
       |     +--rw qosRuleIPv6Addrs
       |     |  +--rw qosRuleIPv6Addr* [addressType ipAddress6 prefixLen]
       |     |     +--rw addressType    qosAddressType
       |     |     +--rw ipAddress6     pub-type:ipv6Address
       |     |     +--rw prefixLen      uint8
       |     +--rw qosRuleTcpFlags
       |     |  +--rw qosRuleTcpFlag* [tcpFlag]
       |     |     +--rw tcpFlag    uint8
       |     +--rw qosRuleAcls
       |     |  +--rw qosRuleAcl* [aclFamily aclName]
       |     |     +--rw aclFamily    qosIPFamily
       |     |     +--rw aclName      string
       |     +--rw qosRulePrioritys
       |        +--rw qosRulePriority* [priorityType priorityValue]
       |           +--rw priorityType     qosPriorityType
       |           +--rw priorityValue    uint8
       +--rw qosBehaviors
       |  +--rw qosBehavior* [behaviorName]
       |     +--rw behaviorName         qosPolicyName
       |     +--rw description?         string
       |     +--rw qosActFilters
       |     |  +--rw qosActFilter*
       |     |     +--rw actionType    qosActionFilter
       |     |     +--rw filter        qosFilterFlag
       |     +--rw qosActPortMirrors
       |     |  +--rw qosActPortMirror* [actionType]
       |     |     +--rw actionType    qosActionPortMirror
       |     |     +--rw enable        qosPortMirror
       |     +--rw qosActCars
       |     |  +--rw qosActCar* [actionType]
       |     |     +--rw actionType            qosActionCar
       |     |     +--rw cir                   uint32
       |     |     +--rw pir?                  uint32
       |     |     +--rw cbs?                  uint32
       |     |     +--rw pbs?                  uint32
       |     |     +--rw greenAction?          qosCarRedActionType
       |     |     +--rw greenServiceClass?    qosServiceClass
       |     |     +--rw greenColor?           qosColor
       |     |     +--rw yellowAction?         qosCarRedActionType
       |     |     +--rw yellowServiceClass?   qosServiceClass
       |     |     +--rw yellowColor?          qosColor
       |     |     +--rw redAction?            qosCarRedActionType
       |     |     +--rw redServiceClass?      qosServiceClass
       |     |     +--rw redColor?             qosColor
       |     +--rw qosActRemarks
       |     |  +--rw qosActRemark* [actionType]
       |     |     +--rw actionType     qosActionRemark
       |     |     +--rw remarkValue    uint8
       |     +--rw qosActSrvClss
       |     |  +--rw qosActSrvCls* [actionType]
       |     |     +--rw actionType      qosActionServiceClass
       |     |     +--rw serviceClass    qosServiceClass
       |     |     +--rw color           qosColor
       |     +--rw qosActUrpfs
       |     |  +--rw qosActUrpf* [actionType]
       |     |     +--rw actionType      qosActionUrpf
       |     |     +--rw checkType       qosUrpfCheckType
       |     |     +--rw allowDefault?   qosSwitchFlag
       |     +--rw qosActLoads
       |     |  +--rw qosActLoad* [actionType]
       |     |     +--rw actionType     qosActionLoadBalance
       |     |     +--rw balanceType    qosLoadBalanceType
       |     +--rw qosActNsSamplers
       |     |  +--rw qosActNsSampler* [flowType]
       |     |     +--rw flowType       qosNsFlowType
       |     |     +--rw sampleType     qosSampleType
       |     |     +--rw sampleValue    uint16
       |     +--rw qosActRdrNhps
       |     |  +--rw qosActRdrNhp* [rdrType]
       |     |     +--rw rdrType    qosRdrType
       |     |     +--rw nextHop    pub-type:ipv4Address
       |     |     +--rw ifName     pub-type:ifName
       |     +--rw qosActRdrMhps
       |     |  +--rw qosActRdrMhp* [rdrType]
       |     |     +--rw rdrType        qosRdrType
       |     |     +--rw loadBalance?   boolean
       |     |     +--rw qosRdrNhps
       |     |        +--rw qosRdrNhp* [nextHop]
       |     |           +--rw nextHop    pub-type:ipv4Address
       |     |           +--rw ifName     pub-type:ifName
       |     +--rw qosActRdrNhp6s
       |     |  +--rw qosActRdrNhp6* [rdrType]
       |     |     +--rw rdrType    qosRdrType
       |     |     +--rw nextHop    pub-type:ipv6Address
       |     |     +--rw ifName     pub-type:ifName
       |     +--rw qosActRdrMhp6s
       |     |  +--rw qosActRdrMhp6* [rdrType]
       |     |     +--rw rdrType        qosRdrType
       |     |     +--rw loadBalance?   boolean
       |     |     +--rw qosRdrNhp6s
       |     |        +--rw qosRdrNhp6* [nextHop]
       |     |           +--rw nextHop    pub-type:ipv6Address
       |     |           +--rw ifName     pub-type:ifName
       |     +--rw qosActRdrVpns
       |     |  +--rw qosActRdrVpn* [actionType]
       |     |     +--rw actionType      qosActionRedirectVpnGroup
       |     |     +--rw vpnGroupName    qosPolicyName
       |     +--rw qosActRdrLsps
       |        +--rw qosActRdrLsp* [actionType]
       |           +--rw actionType    qosActionRedirectLsp
       |           +--rw configType    qosLspRdrType
       |           +--rw destAddr      pub-type:ipv4Address
       |           +--rw nextHop       pub-type:ipv4Address
       |           +--rw ifName        pub-type:ifName
       |           +--rw secondary     qosEnableFlag+--rw qosPolicys
       +--rw qosPolicy* [policyName]
       |  +--rw policyName               qosPolicyName
       |  +--ro policyID?                uint32
       |  +--rw description?             string
       |  +--rw step?                    uint16
       |  +--rw shareMode?               qosSwitchFlag
       |  +--rw statFlag?                qosSwitchFlag
       |  +--rw v6QosLocalIDEns
       |  |  +--rw v6QosLocalIDEn* [v6QosLocalIDEn]
       |  |     +--rw v6QosLocalIDEn    boolean
       |  +--rw qosPolicyNodes
       |  |  +--rw qosPolicyNode* [classifierName]
       |  |     +--rw classifierName    string  
       |  |     +--rw behaviorName      string 
       |  |     +--rw priority?         uint16
       |  +--rw qosPolicyNodeNewModes
       |     +--rw qosPolicyNodeNewMode* [classifierName streamDirection groupType groupName]
       |        +--rw classifierName     string 
       |        +--rw streamDirection    streamDirectionType
       |        +--rw groupType          groupType
       |        +--rw groupName          string
       |        +--rw behaviorName       string 
       |        +--rw precedence?        uint16        
       +--rw local-URPF
          +--rw cpu-defend-policy* [name]
             +--rw name          string
             +--description?        string
             +-- urpf-mode         enumeration               
             +--allow-default    boolean
             +--slot-id          unit16

4.4. DHCP Snooping

DHCP, which is widely used on networks, dynamically assigns IP addresses to clients and manages configuration information in a centralized manner. During DHCP packet forwarding, some attacks may occur, such as bogus DHCP server attacks, DHCP exhaustion attacks, denial of service (DoS) attacks, and DHCP flooding attacks.

DHCP snooping is a DHCP security feature that functions in a similar way to a firewall between DHCP clients and servers. A DHCP-snooping-capable device intercepts DHCP packets and uses information carried in the packets to create a DHCP snooping binding table. This table records hosts' MAC addresses, IP addresses, IP address lease time, VLAN, and interface information. The device uses this table to check the validity of received DHCP packets. If a DHCP packet does not match any entry in this table, the device discards the packet.

Besides the binding table, DHCP snooping has other security features such as trusted interface, max dhcp user limit and whitelist to defend against the bogus DHCP server, DHCP flooding and other fine-grained DHCP attacks.

module: ietf-dhcp-sec
    +--rw dhcp
       +--rw snooping
          +--rw dhcpSnpGlobal
          |  +--rw dhcpSnpEnable?                   boolean
          |  +--rw serverDetectEnable?              boolean
          |  +--rw dhcpSnpUserBindAutoSaveEnable?   boolean
          |  +--rw dhcpSnpUserBindFileName?         string
          |  +--rw globalCheckRateEnable?           boolean
          |  +--rw dhcpSnpGlobalRate?               uint16
          |  +--rw checkRateAlarmEnable?            boolean
          |  +--rw rateThreshold?                   uint16
          |  +--rw alarmThreshold?                  uint16
          |  +--ro rateLimitPacketCount?            uint32
          |  +--rw dhcpSnpUserOfflineRemoveMac?     boolean
          |  +--rw dhcpSnpArpDetectEnable?          boolean
          |  +--rw dhcpSnpGlobalMaxUser?            uint16
          |  +--rw dhcpSnpUserTransferEnable?       boolean
          +--rw dhcpSnpVlans
          |  +--rw dhcpSnpVlan* [vlanId]
          |     +--rw vlanId                     uint16
          |     +--rw dhcpSnpEnable              boolean
          |     +--rw checkRateEnable            boolean
          |     +--rw dhcpSnpVlanRate            uint32
          |     +--rw dhcpSnpVlanTrustEnable     boolean
          |     +--rw checkArpEnable             boolean
          |     +--rw alarmArpEnable             boolean
          |     +--rw alarmArpThreshold          uint16
          |     +--rw checkIpEnable              boolean
          |     +--rw alarmIpEnable              boolean
          |     +--rw alarmIpThreshold           uint16
          |     +--rw alarmReplyEnable           boolean
          |     +--rw alarmReplyThreshold        uint16
          |     +--rw checkMacEnable             boolean
          |     +--rw alarmMacEnable             boolean
          |     +--rw alarmMacThreshold          uint16
          |     +--rw checkUserBindEnable        boolean
          |     +--rw alarmUserBindEnable        boolean
          |     +--rw alarmUserBindThreshold     uint16
          |     +--rw dhcpSnpVlanMaxUserNum      uint16
          |     +--rw alarmUserLimitEnable       boolean
          |     +--rw alarmUserLimitThreshold    uint16
          |     +--rw dhcpSnpVlanStatistics
          |        +--ro dropArpPktCnt?              uint32
          |        +--ro dropIpPktCnt?               uint32
          |        +--ro dropDhcpReqCntByBindTbl?    uint32
          |        +--ro dropDhcpReqCntByMacCheck?   uint32
          |        +--ro dropDhcpReplyCnt?           uint32
          +--rw vlanTrustInterfaces
          |  +--rw vlanTrustInterface* [vlanId ifName]
          |     +--rw vlanId    uint16
          |     +--rw ifName    pub-type:ifName
          +--rw dhcpSnpInterfaces
          |  +--rw dhcpSnpInterface* [ifName]
          |     +--rw ifName                          pub-type:ifName
          |     +--rw dhcpSnpEnable                   boolean
          |     +--rw dhcpSnpIfDisable                boolean
          |     +--rw dhcpSnpIfTrustEnable            boolean
          |     +--rw dhcpSnpIfRate                   uint16
          |     +--rw checkRateEnable                 boolean
          |     +--rw alarmRateEnable                 boolean
          |     +--rw alarmRateThreshold              uint16
          |     +--rw checkArpEnable                  boolean
          |     +--rw alarmArpEnable                  boolean
          |     +--rw alarmArpThreshold               uint16
          |     +--rw checkIpEnable                   boolean
          |     +--rw alarmIpEnable                   boolean
          |     +--rw alarmIpThreshold                uint16
          |     +--rw alarmReplyEnable                boolean
          |     +--rw alarmReplyThreshold             uint16
          |     +--rw checkMacEnable                  boolean
          |     +--rw alarmMacEnable                  boolean
          |     +--rw alarmMacThreshold               uint16
          |     +--rw checkUserBindEnable             boolean
          |     +--rw alarmUserBindEnable             boolean
          |     +--rw alarmUserBindThreshold          uint16
          |     +--rw dhcpSnpIntfMaxUserNum           uint32
          |     +--rw alarmUserLimitEnable            boolean
          |     +--rw alarmUserLimitThreshold         uint16
          |     +--rw dhcpSnpInterfStickyMacEnable    boolean
          |     +--rw dhcpSnpIfStatistics
          |        +--ro dropArpPktCnt?              uint32
          |        +--ro dropIpPktCnt?               uint32
          |        +--ro pktCntDropByUserBind?       uint32
          |        +--ro pktCntDropByMac?            uint32
          |        +--ro pktCntDropByUntrustReply?   uint32
          |        +--ro pktCntDropByRate?           uint32
          +--rw dhcpSnpDynBindTbls
          |  +--ro dhcpSnpDynBindTbl* [ipAddress outerVlan innerVlan vsiName vpnName bridgeDomain]
          |     +--ro ipAddress       pub-type:ipv4Address
          |     +--ro outerVlan       uint16
          |     +--ro innerVlan       uint16
          |     +--ro vsiName         string
          |     +--ro vpnName         string
          |     +--ro bridgeDomain    uint32
          |     +--ro macAddress?     pub-type:macAddress
          |     +--ro ifName?         pub-type:ifName
          |     +--ro lease?          yang:date-and-time
          +--rw dhcpSnpVlanIfs
          |  +--rw dhcpSnpVlanIf* [vlanId ifName]
          |     +--rw vlanId                     uint16
          |     +--rw ifName                     pub-type:ifName
          |     +--rw dhcpSnpEnable              boolean
          |     +--rw trustFlag                  boolean
          |     +--rw checkArpEnable             boolean
          |     +--rw alarmArpEnable             boolean
          |     +--rw alarmArpThreshold          uint32
          |     +--rw checkIpEnable              boolean
          |     +--rw alarmIpEnable              boolean
          |     +--rw alarmIpThreshold           uint32
          |     +--rw alarmReplyEnable           boolean
          |     +--rw alarmReplyThreshold        uint32
          |     +--rw checkChaddrEnable          boolean
          |     +--rw alarmChaddrEnable          boolean
          |     +--rw alarmChaddrThreshold       uint32
          |     +--rw checkReqEnable             boolean
          |     +--rw alarmReqEnable             boolean
          |     +--rw alarmReqThreshold          uint32
          |     +--rw dhcpSnpVlanIfMaxUserNum    uint32
          |     +--rw alarmUserLimitEnable       boolean
          |     +--rw alarmUserLimitThreshold    uint32
          |     +--rw dhcpSnpVlanIfStatistics
          |        +--ro dropArpPktCnt?              uint32
          |        +--ro dropIpPktCnt?               uint32
          |        +--ro dropDhcpReqCntByBindTbl?    uint32
          |        +--ro dropDhcpReqCntByMacCheck?   uint32
          |        +--ro dropDhcpReplyCnt?           uint32
          +--rw ifStaticBindTbls
          |  +--rw ifStaticBindTbl* [ifName ipAddress vlanId ceVlanId]
          |     +--rw ifName        pub-type:ifName
          |     +--rw ipAddress     pub-type:ipAddress
          |     +--rw vlanId        uint16
          |     +--rw ceVlanId      uint16
          |     +--rw macAddress?   pub-type:macAddress
          +--rw vlanStaticBindTbls
          |  +--rw vlanStaticBindTbl* [vlanId ipAddress ceVlanId]
          |     +--rw vlanId        uint16
          |     +--rw ipAddress     pub-type:ipAddress
          |     +--rw ceVlanId      uint16
          |     +--rw macAddress?   pub-type:macAddress
          |     +--rw ifName?       pub-type:ifName
          +--rw dhcpSnpBds
          |  +--rw dhcpSnpBd* [bdId]
          |     +--rw bdId                       uint32
          |     +--rw dhcpSnpEnable?             boolean
          |     +--rw dhcpSnpTrust?              boolean
          |     +--rw checkArpEnable?            boolean
          |     +--rw alarmArpEnable?            boolean
          |     +--rw alarmArpThreshold?         uint32
          |     +--rw checkIpEnable?             boolean
          |     +--rw alarmIpEnable?             boolean
          |     +--rw alarmIpThreshold?          uint32
          |     +--rw alarmReplyEnable?          boolean
          |     +--rw alarmReplyThreshold?       uint32
          |     +--rw checkMacEnable?            boolean
          |     +--rw alarmMacEnable?            boolean
          |     +--rw alarmMacThreshold?         uint32
          |     +--rw checkRequestEnable?        boolean
          |     +--rw alarmRequestEnable?        boolean
          |     +--rw alarmRequestThreshold?     uint32
          |     +--rw maxUserNum?                uint32
          |     +--rw alarmUserLimitEnable?      boolean
          |     +--rw alarmUserLimitThreshold?   uint32
          |     +--rw statistics
          |        +--ro dropArpPktCnt?              uint32
          |        +--ro dropIpPktCnt?               uint32
          |        +--ro dropDhcpReqCntByBindTbl?    uint32
          |        +--ro dropDhcpReqCntByMacCheck?   uint32
          |        +--ro dropDhcpReplyCnt?           uint32
          +--rw BdStaticBindTbls
          |  +--rw globalBdStaticBindTbl* [bdId ipAddress peVlan ceVlan]
          |     +--rw bdId          uint32
          |     +--rw ipAddress     pub-type:ipv4Address
          |     +--rw macAddress?   pub-type:macAddress
          |     +--rw peVlan        uint16
          |     +--rw ceVlan        uint16
           +--rw dhcpSnpWhiteLists
             +--rw dhcpSnpWhiteList* [whtLstName]
                +--rw whtLstName           string
                +--rw applyFlag            boolean
                +--rw dhcpSnpWhiteRules
                   +--rw dhcpSnpWhiteRule* [ruleId]
                      +--rw ruleId     uint16
                      +--rw srcIP?     inet:ipv4-address-no-zone
                      +--rw srcMask?   inet:ipv4-address-no-zone
                      +--rw dstIP?     inet:ipv4-address-no-zone
                      +--rw dstMask?   inet:ipv4-address-no-zone
                      +--rw srcPort?   dhcpSnpPort
                      +--rw dstPort?   dhcpSnpPort

4.5. Control Plane Protection

When a large number of protocols runs on the router, a lot of packets need be sent to the control plane for processing. In such a case, the router control plane is prone to be attacked. To protect it, protocol packet control is needed. This function allows only specified protocol packets to be sent to control plane, and reduces malicious packet attacks on the control plane to ensure that devices work properly.

module: ietf-hostdefend-sec
    +--rw hostdefend
       +--rw secma global
       |  +--rw secMAEnable?       boolean
       |  +--rw secMABgp?          hostdefendMAAction
       |  +--rw secMAFtp?          hostdefendMAAction
       |  +--rw secMALdp?          hostdefendMAAction
       |  +--rw secMAOspf?         hostdefendMAAction
       |  +--rw secMARip?          hostdefendMAAction
       |  +--rw secMARsvp?         hostdefendMAAction
       |  +--rw secMASnmp?         hostdefendMAAction
       |  +--rw secMASsh?          hostdefendMAAction
       |  +--rw secMATlnt?         hostdefendMAAction
       |  +--rw secMATftp?         hostdefendMAAction
       |  +--rw secMAIsis?         hostdefendMAAction
       |  +--rw secMAPimSm?        hostdefendMAAction
       |  +--rw secMABgp4Plus?     hostdefendMAAction
       |  +--rw secMAIPv6Ftp?      hostdefendMAAction
       |  +--rw secMAOspfv3?       hostdefendMAAction
       |  +--rw secMAIPv6PimSm?    hostdefendMAAction
       |  +--rw secMAIPv6Ssh?      hostdefendMAAction
       |  +--rw secMAIPv6Telnet?   hostdefendMAAction
       +--rw secmaslots
       |  +--rw secmaslot* [secMASlotPlcyID]
       |     +--rw secMASlotPlcyID    uint32
       |     +--rw secMABgp?          hostdefendMAAction
       |     +--rw secMAFtp?          hostdefendMAAction
       |     +--rw secMALdp?          hostdefendMAAction
       |     +--rw secMAOspf?         hostdefendMAAction
       |     +--rw secMARip?          hostdefendMAAction
       |     +--rw secMARsvp?         hostdefendMAAction
       |     +--rw secMASnmp?         hostdefendMAAction
       |     +--rw secMASsh?          hostdefendMAAction
       |     +--rw secMATelnet?       hostdefendMAAction
       |     +--rw secMATftp?         hostdefendMAAction
       |     +--rw secMAIsis?         hostdefendMAAction
       |     +--rw secMAPimSm?        hostdefendMAAction
       |     +--rw secMABgp4Plus?     hostdefendMAAction
       |     +--rw secMAIPv6Ftp?      hostdefendMAAction
       |     +--rw secMAOspfv3?       hostdefendMAAction
       |     +--rw secMAIPv6PimSm?    hostdefendMAAction
       |     +--rw secMAIPv6Ssh?      hostdefendMAAction
       |     +--rw secMAIPv6Telnet?   hostdefendMAAction
       +--rw secmaslotcfgs
       |  +--rw secmaslotcfg* [secMASlotIdStr]
       |     +--rw secMASlotIdStr     hostdefendMaSlotId
       |     +--rw secMASlotPlcyID    uint32
       +--rw secmaintfs
       |  +--rw secmaintf* [secMAIntfPlcyID]
       |     +--rw secMAIntfPlcyID    uint32
       |     +--rw secMABgp?          hostdefendMAAction
       |     +--rw secMAFtp?          hostdefendMAAction
       |     +--rw secMALdp?          hostdefendMAAction
       |     +--rw secMAOspf?         hostdefendMAAction
       |     +--rw secMARip?          hostdefendMAAction
       |     +--rw secMARsvp?         hostdefendMAAction
       |     +--rw secMASnmp?         hostdefendMAAction
       |     +--rw secMASsh?          hostdefendMAAction
       |     +--rw secMATelnet?       hostdefendMAAction
       |     +--rw secMATftp?         hostdefendMAAction
       |     +--rw secMAIsis?         hostdefendMAAction
       |     +--rw secMAPimSm?        hostdefendMAAction
       |     +--rw secMABgp4Plus?     hostdefendMAAction
       |     +--rw secMAIPv6Ftp?      hostdefendMAAction
       |     +--rw secMAOspfv3?       hostdefendMAAction
       |     +--rw secMAIPv6PimSm?    hostdefendMAAction
       |     +--rw secMAIPv6Ssh?      hostdefendMAAction
       |     +--rw secMAIPv6Telnet?   hostdefendMAAction
       +--rw secmaintfcfgs
       |  +--rw secmaintfcfg* [ifName]
       |     +--rw ifName             pub-type:ifName
       |     +--rw secMAIntfPlcyID    uint32
       +--rw secFragCarStats
       |  +--ro secFragCarStat* [secSlotId]
       |     +--ro secSlotId         string
       |     +--ro secTotalPktNum?   uint64
       |     +--ro secDropPktNum?    uint64
       |     +--ro secPassPktNum?    uint64
       +--rw secMaDefendStats
       |  +--ro secMaDefendStat* [slotId protocolType]
       |     +--ro slotId          string
       |     +--ro protocolType    hostdefendMaDefendPROTOCOL
       |     +--ro totalPktNum?    uint64
       |     +--ro passPktNum?     uint64
       |     +--ro dropPktNum?     uint64
       +--rw secHostCaptPkts
       |  +--rw secHostCaptPkt* [captureIndex]
       |     +--rw captureIndex      uint8
       |     +--rw hostCaptPro       uint32
       |     +--rw hostCaptType      hostdefendCaptPhyType
       |     +--rw ifName?           pub-type:ifName
       |     +--rw captLinkType?     hostdefendCaptLinkType
       |     +--rw peVlan?           uint32
       |     +--rw peEnd?            uint32
       |     +--rw ceVlan?           uint32
       |     +--rw ceEnd?            uint32
       |     +--rw captPktNum?       uint32
       |     +--rw captTimeOut?      uint32
       |     +--rw captPktLenType?   hostdefendPktLenType
       |     +--rw captPktLen?       uint32
       |     +--rw captAclType?      hostdefendAclType
       |     +--rw captAcl?          hostdefendCaptAcl
       |     +--rw captIpv6Acl?      hostdefendCaptIpv6Acl
       |     +--rw terminal?         hostdefendDestType
       |     +--rw fileName?         string
       |     +--rw fileSize?         uint32
       +--rw secMaDefendIfStats
       |  +--ro secMaDefendIfStat* [protocolType]
       |     +--ro ifName?         pub-type:ifName
       |     +--ro protocolType    hostdefendMaDefendPROTOCOL
       |     +--ro totalPktNum?    uint64
       |     +--ro passPktNum?     uint64
       |     +--ro dropPktNum?     uint64
       +--rw secIsolates
       |  +--rw secIsolate* [secStatus]
       |     +--rw secStatus    hostdefendIsolateStatus
       +--rw serviceSecurityV4s 
       |  +--rw serviceSecurityV4* [policyName]
       |     +--rw policyName     mpacPolicyName
       |     +--rw step?          uint32
       |     +--rw description?   string
       |     +--rw ruleIPv4s
       |        +--rw ruleIPv4* [ruleName]
       |           +--rw ruleName           string
       |           +--rw ruleID?            uint32
       |           +--rw action             mpacRuleAction
       |           +--rw protocolType       mpacProtocolType
       |           +--rw protocolName?      mpacProtoName
       |           +--rw ipProtocolNum?     uint8
       |           +--rw sourceIP?          pub-type:ipv4Address
       |           +--rw sourceWild?        pub-type:ipv4Address
       |           +--rw destinationIP?     pub-type:ipv4Address
       |           +--rw destinationWild?   pub-type:ipv4Address
       |           +--rw sourcePort?        uint16
       |           +--rw destinationPort?   uint16
       |           +--rw match4Stats
       |              +--ro match4Stat*
       |                 +--ro matchCount?   uint64
       +--rw serviceSecurityV6s
       |  +--rw serviceSecurityV6* [policyName]
       |     +--rw policyName     mpacPolicyName
       |     +--rw step?          uint32
       |     +--rw description?   string
       |     +--rw ruleIPv6s
       |        +--rw ruleIPv6* [ruleName]
       |           +--rw ruleName             string
       |           +--rw ruleID?              uint32
       |           +--rw action               mpacRuleAction
       |           +--rw protocolType         mpacProtocolType
       |           +--rw protocolName?        mpacProto6Name
       |           +--rw ipProtocolNum?       uint8
       |           +--rw sourceIP?            pub-type:ipv6Address
       |           +--rw sourcePrefix?        uint32
       |           +--rw destinationIP?       pub-type:ipv6Address
       |           +--rw destinationPrefix?   uint32
       |           +--rw sourcePort?          uint16
       |           +--rw destinationPort?     uint16
       |           +--rw match6Stats
       |              +--ro match6Stat*
       |                 +--ro matchCount?   uint64
       +--rw serviceSecurityCfgGlobals
       |  +--rw serviceSecurityCfgGlobal* [family]
       |     +--rw family          enumeration
       |     +--rw policyNameV4?   -> /hostdefend/serviceSecurityV4s/serviceSecurityV4/policyName
       |     +--rw policyNameV6?   -> /hostdefend/serviceSecurityV6s/serviceSecurityV6/policyName
       +--rw serviceSecurityCfgIfs
       |  +--rw serviceSecurityCfgIf* [ifName family]
       |     +--rw ifName          pub-type:ifName
       |     +--rw family          mpacProtocolFamily
       |     +--rw policyNameV4?   -> /hostdefend/serviceSecurityV4s/serviceSecurityV4/policyName
       |     +--rw policyNameV6?   -> /hostdefend/serviceSecurityV6s/serviceSecurityV6/policyName
       +--rw secHostIfStats
       |  +--ro secHostIfStat* [ifName]
       |     +--ro ifName                string
       |     +--ro recvPacket?           uint64
       |     +--ro secIfProtocolStats
       |        +--ro secIfProtocolStat*
       |           +--ro layer?            hostIfStatsProtocolLayType
       |           +--ro protocol?         hostIfStatsProtocolType
       |           +--ro expectedPkts?     uint32
       |           +--ro unexpectedPkts?   uint32
       +--rw secIfProtocolCfgs
       |  +--rw secIfProtocolCfg* [ifName]
       |     +--rw ifName    string
       
       +--rw secCaptPktInstances 
          +--ro secCaptPktInstance*
             +--ro secInstanceId?   uint8
             +--ro inBoundInst?     uint32
             +--ro outBoundInst?    uint32
             +--ro totalInst?       uint32
             +--ro hostInst?        uint32
             +--ro protocolNum?     uint32
             +--ro ifName?          string
             +--ro captureStatus?   hostdefendStatusType
             +--ro captTimeOut?     uint32
             +--ro setPktNum?       uint32
             +--ro setPktSize?      uint32
             +--ro deletePktNum?    uint32
             +--ro deletePktSize?   uint32
             +--ro getPktNum?       uint32
             +--ro getPktSize?      uint32
             +--ro firPktTime?      string
             +--ro lastPktTime?     string
             +--ro acl?             string
             +--ro remainTime?      uint32
             +--ro pktDevName?      string
             +--ro fileName?        string
             +--ro linkType?        hostdefendCaptLinkType
             +--ro hostCaptType?    hostdefendCaptType

4.6. Data Plane Protection

In the data plane of router, before various protocol packets are sent to the control plane for further processing. Necessary control policies or functions(i.e., CAR, Alarm control, packet capture, etc) and a number of packet statistics are needed in data plane to protect the devices, as well as get more visibility of router status.

module: ietf-cpudefend-sec
       +--rw cpudefend
          +--rw secpolicys
          |  +--rw secpolicy* [secPolicyID]
          |     +--rw secPolicyID           uint32
          |     +--rw secDescription?       string
          |     +--rw secpolicyattcfg 
          |     |  +--rw secIsAttackSrc?    boolean
          |     |  +--rw secAttSrcRate?     cpudefendAttSampleRate
          |     |  +--rw secAttSrcAppLnk?   boolean
          |     |  +--rw secAttSrcCpCar?    boolean
          |     |  +--rw secAttSrcMa?       boolean
          |     |  +--rw secAttSrcTcpip?    boolean
          |     +--rw secTMSQConfig
          |     |  +--rw secStatus?   boolean
          |     +--rw secpolicyproseq
          |     |  +--rw secProSeqWL?   cpudefendProcessSeq
          |     |  +--rw secProSeqBL?   cpudefendProcessSeq
          |     |  +--rw secProSeqUF?   cpudefendProcessSeq
          |     +--rw secpolicyapplnk
          |     |  +--rw secDftAction?   cpudefendAppDefAction
          |     +--rw secpolicyallpkt
          |     |  +--rw secRateValue?   uint32
          |     |  +--rw secRateFlag?    cpudefendTotalCar
          |     +--rw secpolicycars
          |     |  +--rw secpolicycar* [secPolicyType secPolicyTypeID subProtoType subTcpIpType]
          |     |     +--rw secPolicyType      cpudefendPolicyCarType
          |     |     +--rw secPolicyTypeID    uint32
          |     |     +--rw subProtoType       cpudefendCPCARProtocol
          |     |     +--rw subTcpIpType       cpudefendTcpipCarType
          |     |     +--rw secPolicyCir?      uint32
          |     |     +--rw secPolicyCbs?      uint32
          |     |     +--rw secPolicyCbs4Sh?   uint32
          |     |     +--rw secMinPktLen?      uint32
          |     +--rw secpolicyswitchs
          |     |  +--rw secpolicyswitch* [secPolicyType secPolicyTypeID subTcpIpType]
          |     |     +--rw secPolicyType      cpudefendPolicySwitchType
          |     |     +--rw secPolicyTypeID    cpudefendAclProtocolTypeID
          |     |     +--rw subTcpIpType       cpudefendTcpipType
          |     |     +--rw secPolicyEnable?   boolean
          |     +--rw secpolicyalarms
          |     |  +--rw secpolicyalarm* [secPolicyType secPolicyTypeID]
          |     |     +--rw secPolicyType      secPolicyAlarmType
          |     |     +--rw secPolicyTypeID    uint32
          |     |     +--rw secAlarmFlag?      boolean
          |     |     +--rw secAlarmThld?      uint32
          |     |     +--rw secAlarmInt?       uint32
          |     |     +--rw secAlarmSpd?       uint32
          |     |     +--rw secAlarmResume?    uint32
          |     +--rw secpolicyprios
          |     |  +--rw secpolicyprio* [secPolicyType secPolicyTypeID subProtoType]
          |     |     +--rw secPolicyType      cpudefendPolicyPrioType
          |     |     +--rw secPolicyTypeID    uint32
          |     |     +--rw subProtoType       cpudefendCPCARProtocol
          |     |     +--rw secPriority        cpudefendPriority
          |     +--rw secpolicyacls
          |     |  +--rw secpolicyacl* [secPolicyType secPolicyTypeID]
          |     |     +--rw secPolicyType      cpudefendPolicyAclType
          |     |     +--rw secPolicyTypeID    uint32
          |     |     +--rw secAclNum          uint32
          |     |     +--rw secPrior?          boolean
          |     +--rw secDevUrpfs
          |     |  +--rw secDevUrpf* [secUrpfLooseType]
          |     |     +--rw secUrpfLooseType         cpudefendUrpfMode
          |     |     +--rw secEnableDefaultRoute?   boolean
          |     +--rw sECCrssBrdCarNodes
          |        +--rw sECCrssBrdCarNode* [secPolicyCir]
          |           +--rw secPolicyCir    uint32
          |           +--rw secPolicyCbs?   uint32
          +--rw secpolicycfgs
          |  +--rw secpolicycfg* [secSlotIdStr]
          |     +--rw secSlotIdStr    -> /devm:devm/lpuBoards/lpuBoard/position
          |     +--rw secPolicyID     -> /cpudefend/secpolicys/secpolicy/secPolicyID
          +--ro seccarsysids
          |  +--ro seccarsysid* [secSlotId secCarSysId]
          |     +--ro secSlotId         string
          |     +--ro secPolicyID?      uint32
          |     +--ro secCarSysId       uint16
          |     +--ro secCarCir?        uint32
          |     +--ro secCarCbs?        uint32
          |     +--ro secDefaultCir?    uint32
          |     +--ro secDefaultCbs?    uint32
          |     +--ro secDescription?   string
          +--ro secappstats
          |  +--ro secappstat* [secSlotId]
          |     +--ro secSlotId            string
          |     +--ro secAppEnable?        cpudefendAppStatus
          |     +--ro secAppDefAct?        cpudefendAppDefAction
          |     +--ro secFtpServer?        cpudefendAppStatus
          |     +--ro secSshServer?        cpudefendAppStatus
          |     +--ro secSnmp?             cpudefendAppStatus
          |     +--ro secTelnetServer?     cpudefendAppStatus
          |     +--ro secTftp?             cpudefendAppStatus
          |     +--ro secBgp?              cpudefendAppStatus
          |     +--ro secLdp?              cpudefendAppStatus
          |     +--ro secRsvp?             cpudefendAppStatus
          |     +--ro secOspf?             cpudefendAppStatus
          |     +--ro secRip?              cpudefendAppStatus
          |     +--ro secMsdp?             cpudefendAppStatus
          |     +--ro secPim?              cpudefendAppStatus
          |     +--ro secIgmp?             cpudefendAppStatus
          |     +--ro secIsis?             cpudefendAppStatus
          |     +--ro secFtpClient?        cpudefendAppStatus
          |     +--ro secTelnetClient?     cpudefendAppStatus
          |     +--ro secSshClient?        cpudefendAppStatus
          |     +--ro secNtp?              cpudefendAppStatus
          |     +--ro secRadius?           cpudefendAppStatus
          |     +--ro secHwtacacs?         cpudefendAppStatus
          |     +--ro secLspping?          cpudefendAppStatus
          |     +--ro secIcmp?             cpudefendAppStatus
          |     +--ro secVrrp?             cpudefendAppStatus
          |     +--ro secDhcp?             cpudefendAppStatus
          |     +--ro secDnsClient?        cpudefendAppStatus
          |     +--ro secSysLog?           cpudefendAppStatus
          |     +--ro secBfd?              cpudefendAppStatus
          |     +--ro sec8021ag?           cpudefendAppStatus
          |     +--ro secLacp?             cpudefendAppStatus
          |     +--ro secBgpV6?            cpudefendAppStatus
          |     +--ro secOspfV3?           cpudefendAppStatus
          |     +--ro secFtpV6Server?      cpudefendAppStatus
          |     +--ro secFtpV6Client?      cpudefendAppStatus
          |     +--ro secIcmpV6?           cpudefendAppStatus
          |     +--ro secPimV6?            cpudefendAppStatus
          |     +--ro secSshV6Server?      cpudefendAppStatus
          |     +--ro secTelnetV6Client?   cpudefendAppStatus
          |     +--ro secTelnetV6Server?   cpudefendAppStatus
          |     +--ro secDnsV6?            cpudefendAppStatus
          |     +--ro secWebAuthServ?      cpudefendAppStatus
          |     +--ro secDiameter?         cpudefendAppStatus
          |     +--ro secOpenflow?         cpudefendAppStatus
          |     +--ro secUnicastVrrp?      cpudefendAppStatus
          |     +--ro secIgpmu?            cpudefendAppStatus
          |     +--ro secIpfpm?            cpudefendAppStatus
          +--ro secnoncarstats
          |  +--ro secnoncarstat* [secSlotId secPolicyType secPolicyTypeID]
          |     +--ro secSlotId          string
          |     +--ro secPolicyType      cpudefendNoCarPolicyType
          |     +--ro secPolicyTypeID    cpudefendSecStatTypeID
          |     +--ro secSubTotalPkts?   uint64
          |     +--ro secSubPassPkts?    uint64
          |     +--ro secSubDropPkts?    uint64
          +--ro seccarstats
          |  +--ro seccarstat* [secSlotId secPolicyType secPolicyTypeID]
          |     +--ro secSlotId          string
          |     +--ro secPolicyType      cpudefendPolicyType
          |     +--ro secPolicyTypeID    uint32
          |     +--ro secAppEnable?      boolean
          |     +--ro secAppDefAct?      cpudefendAppDefAction
          |     +--ro secProtoEnable?    boolean
          |     +--ro secPassedPkts?     uint64
          |     +--ro secDropedPkts?     uint64
          |     +--ro secCfgCir?         uint32
          |     +--ro secCfgCbs?         uint32
          |     +--ro secActualCir?      uint32
          |     +--ro secActualCbs?      uint32
          |     +--ro secPriority?       cpudefendPriority
          |     +--ro secMinPktLen?      uint32
          |     +--ro secAclDenyPkts?    uint64
          |     +--ro secHistPps?        uint64
          |     +--ro secHistPpsTime?    yang:date-and-time
          |     +--ro secLastPps?        uint64
          |     +--ro secLastDrpBTime?   yang:date-and-time
          |     +--ro secLastDrpETime?   yang:date-and-time
          |     +--ro secTtlDropPkts?    uint64
          +--ro secattsrcorgs
          |  +--ro secattsrcorg* [secPktNumber secSlotId]
          |     +--ro secBufferSize?     uint32
          |     +--ro secRecordNumber?   uint32
          |     +--ro secCoverFlag?      uint32
          |     +--ro secPktNumber       uint32
          |     +--ro secSlotId          string
          |     +--ro ifName?            pub-type:ifName
          |     +--ro secPVlanId?        uint16
          |     +--ro secCVlanId?        uint16
          |     +--ro secAttType?        cpudefendATTSRCTYPE
          |     +--ro secDateTime?       yang:date-and-time
          |     +--ro secAttSrcData?     string
          +--ro secAttSrcVerboses
          |  +--ro secAttSrcVerbose* [secPktNumber secSlotId]
          |     +--ro secBufferSize?     uint32
          |     +--ro secRecordNumber?   uint32
          |     +--ro secCoverFlag?      uint32
          |     +--ro secPktNumber       uint32
          |     +--ro secSlotId          string
          |     +--ro ifName             pub-type:ifName
          |     +--ro secPeVlanID?       uint16
          |     +--ro secCeVlanID?       uint16
          |     +--ro secAttType?        cpudefendATTSRCTYPE
          |     +--ro secStartTime?      yang:date-and-time
          |     +--ro secL2Type?         cpudefendAttSrcL2Type
          |     +--ro secLinkType?       uint16
          |     +--ro secSrcMac?         pub-type:macAddress
          |     +--ro secDestMac?        pub-type:macAddress
          |     +--ro secL25Type?        cpudefendAttSrcL25Type
          |     +--ro secArpType?        cpudefendAttSrcArpType
          |     +--ro secMplsLabelNum?   uint16
          |     +--ro secMplsLabel1?     uint16
          |     +--ro secMplsLabel2?     uint16
          |     +--ro secMplsLabel3?     uint16
          |     +--ro secMplsLabel4?     uint16
          |     +--ro secMplsLabel5?     uint16
          |     +--ro secL3Type?         cpudefendAttSrcL3Type
          |     +--ro secIPVersion?      uint8
          |     +--ro secIPHeaderLen?    uint8
          |     +--ro secIPTos?          uint8
          |     +--ro secIPLen?          uint16
          |     +--ro secIPId?           uint16
          |     +--ro secIPOff?          uint16
          |     +--ro secIPTtl?          uint8
          |     +--ro secIPProtocol?     uint8
          |     +--ro secIPCheckSum?     uint16
          |     +--ro secSrcAddr?        inet:ipv4-address-no-zone
          |     +--ro secDstAddr?        inet:ipv4-address-no-zone
          |     +--ro secL4Type?         cpudefendAttSrcL4Type
          |     +--ro secSrcPort?        uint16
          |     +--ro secDstPort?        uint16
          |     +--ro secTcpSeqNum?      uint32
          |     +--ro secTcpAckNum?      uint32
          |     +--ro secTcpFlag?        uint8
          |     +--ro secTcpWinSize?     uint16
          |     +--ro secCheckSum?       uint16
          |     +--ro secUdpLen?         uint16
          |     +--ro secIcmpIgmpType?   uint8
          |     +--ro secIcmpIgmpCode?   uint8
          |     +--ro secIgmpGroup?      inet:ipv4-address-no-zone
          |     +--ro secAttSrcData?     string
          |     +--ro secATMVPI?         uint16
          |     +--ro secATMVCI?         uint16
          |     +--ro secSysid?          uint32
          +--ro secTotalPktStats
          |  +--ro secTotalPktStat* [secSlotId]
          |     +--ro secSlotId      string
          |     +--ro secTotalPkt?   uint64
          |     +--ro secPassPkt?    uint64
          |     +--ro secDropPkt?    uint64
          +--rw secArpCarValues
          |  +--rw secArpCarValue* [secIfName]
          |     +--rw secIfName       -> /ifm:ifm/interfaces/interface/ifName
          |     +--rw secEnable?      boolean
          |     +--rw secRateLimit?   uint32
          +--ro secSlotArpAtcks
          |  +--ro secSlotArpAtck* [secIfIndex secHistory]
          |     +--ro secIfIndex         -> /ifm:ifm/interfaces/interface/ifName
          |     +--ro secVlanId?         uint32
          |     +--ro secIfSubIndex?     pub-type:ifName
          |     +--ro secPeVlanId?       uint32
          |     +--ro secCeVlanId?       uint32
          |     +--ro secCtrlVlan?       uint32
          |     +--ro secEnableArpCar?   boolean
          |     +--ro secPassBytes?      uint64
          |     +--ro secPassPkts?       uint64
          |     +--ro secDropBytes?      uint64
          |     +--ro secDropPkts?       uint64
          |     +--ro secStartTime?      yang:date-and-time
          |     +--ro secHistory         sec_history_type
          |     +--ro secEndTime?        yang:date-and-time
          |     +--ro secPassedBytes?    uint64
          |     +--ro secPassedPkts?     uint64
          |     +--ro secDroppedBytes?   uint64
          |     +--ro secDroppedPkts?    uint64
          +--rw secArpSafeguards
          |  +--rw secArpSafeguard* [secIfIndex]
          |     +--rw secIfIndex    -> /ifm:ifm/interfaces/interface/ifName
          +--ro secArpSafeGStats
          |  +--ro secArpSafeGStat* [secSlotId]
          |     +--ro secSlotId        string
          |     +--ro secRequestCnt?   uint64
          |     +--ro secReplyCnt?     uint64
          |     +--ro secTocpCnt?      uint64
          |     +--ro secDropCnt?      uint64
          +--rw secEnL2LoDetects
          |  +--rw secEnL2LoDetect* [secSlotId]
          |     +--rw secSlotId        -> /devm:devm/lpuBoards/lpuBoard/position
          |     +--rw secDetectFlag?   boolean
          +--rw secL2LoDteTraps
          |  +--rw secL2LoDteTrap* [secSlotId]
          |     +--rw secSlotId      -> /devm:devm/lpuBoards/lpuBoard/position
          |     +--rw secTrapFlag?   boolean
          +--rw secL2LoDteShuts
          |  +--rw secL2LoDteShut* [secSlotId]
          |     +--rw secSlotId        -> /devm:devm/lpuBoards/lpuBoard/position
          |     +--rw secShutFlag?     boolean
          |     +--rw secUpTimes?      uint16
          |     +--rw secUpInterval?   uint16
          +--ro secL2LoDisStaIns
          |  +--ro secL2LoDisStaIn* [secSlotId]
          |     +--ro secSlotId        string
          |     +--ro secActionFlag?   cpudefendL2LoopAction
          |     +--ro secIfName?       pub-type:ifName
          |     +--ro secVlanID?       uint16
          |     +--ro secLoopLevel?    cpudefendL2LoopLevel
          |     +--ro secPortState?    cpudefendL2LoopIntfStatus
          +--ro secL2LoDisPckIns
          |  +--ro secL2LoDisPckIn* [secSlotId]
          |     +--ro secSlotId      string
          |     +--ro secIfName?     pub-type:ifName
          |     +--ro secNumber?     uint16
          |     +--ro secPeVlanId?   uint16
          |     +--ro secCeVlanId?   uint16
          |     +--ro secProtocol?   cpudefendSecStatTypeID
          |     +--ro secPktType?    cpudefendL2LoopPacketType
          |     +--ro secSrcMac?     pub-type:macAddress
          +--rw secTMSQWeights
          |  +--rw secTMSQWeight* [secPolicyID secSQType]
          |     +--rw secPolicyID    uint32
          |     +--rw secSQType      cpudefendTMSQWeightType
          |     +--rw secSQWeight?   uint32
          |     +--rw secSQCir?      uint32
          |     +--rw secSQPir?      uint32
          +--ro secDisSQStats
          |  +--ro secDisSQStat* [secSlotId secSQType]
          |     +--ro secSlotId        string
          |     +--ro secSQType        cpudefendTMSQWeightType
          |     +--ro secPassedPkts?   uint64
          |     +--ro secDropedPkts?   uint64
          |     +--ro secDisFQStats
          |        +--ro secDisFQStat*
          |           +--ro secBEPassPkts?    uint64
          |           +--ro secBEDropPkts?    uint64
          |           +--ro secAF1PassPkts?   uint64
          |           +--ro secAF1DropPkts?   uint64
          |           +--ro secAF2PassPkts?   uint64
          |           +--ro secAF2DropPkts?   uint64
          |           +--ro secAF3PassPkts?   uint64
          |           +--ro secAF3DropPkts?   uint64
          |           +--ro secAF4PassPkts?   uint64
          |           +--ro secAF4DropPkts?   uint64
          |           +--ro secEFPassPkts?    uint64
          |           +--ro secEFDropPkts?    uint64
          |           +--ro secCS6PassPkts?   uint64
          |           +--ro secCS6DropPkts?   uint64
          |           +--ro secCS7PassPkts?   uint64
          |           +--ro secCS7DropPkts?   uint64
          +--ro secDisSQWeights
          |  +--ro secDisSQWeight* [secSlotId secSQType]
          |     +--ro secSlotId          string
          |     +--ro secSQType          cpudefendTMSQWeightType
          |     +--ro secConfigSQCir?    uint32
          |     +--ro secDftSQCir?       uint32
          |     +--ro secConfigSQPir?    uint32
          |     +--ro secDftSQPir?       uint32
          |     +--ro secConfigWeight?   uint32
          |     +--ro secDftWeight?      uint32
          +--rw sechostcarNodes
          |  +--rw sechostcarNode* [slotID hostCarType]
          |     +--rw slotID         -> /devm:devm/lpuBoards/lpuBoard/position
          |     +--rw hostCarType    cpudefendhostCarType
          |     +--rw cir?           uint32
          |     +--rw pir?           uint32
          |     +--rw cbs?           uint32
          |     +--rw pbs?           uint32
          +--rw secHstcAdjustNodes
          |  +--rw socHstcAdjustNode* [slotID hostCarType]
          |     +--rw slotID         string
          |     +--rw hostCarType    cpudefendhostCarType
          |     +--rw ifEnable?      socIfEnable
          +--rw secHstcAdjNodes
          |  +--rw socHstcAdjNode* [slotID hostCarType]
          |     +--rw slotID           string
          |     +--rw hostCarType      cpudefendhostCarType
          |     +--rw dropThreshold?   uint32
          |     +--rw interval?        uint32
          +--ro secDisDefaultCars
          |  +--ro secDisDefaultCar* [secSlotId secSysId]
          |     +--ro secSlotId      string
          |     +--ro secSysId       uint16
          |     +--ro secCir?        uint32
          |     +--ro secCbs?        uint32
          |     +--ro secMinPkt?     uint32
          |     +--ro secPriority?   cpudefendSecPriority
          |     +--ro secTypeId?     cpudefendSecTypeId
          +--ro secCurrentCarNodes
          |  +--ro secCurrentCarNode* [secSlotId secPolicyTypeID]
          |     +--ro secSlotId          string
          |     +--ro secPolicyTypeID    uint32
          |     +--ro secPolicyCir?      uint32
          |     +--ro secPolicyCbs?      uint32
          |     +--ro secMinPkt?         uint32
          |     +--ro secPriority?       cpudefendSecPriority
          |     +--ro desc?              cpudefendSecTypeId
          +--ro secAttSrcFiles
          |  +--ro secAttSrcFile* [fileName]
          |     +--ro fileName           string
          |     +--ro secRecordNum?      uint32
          |     +--ro secPktNumber?      uint32
          |     +--ro secPeVlanID?       uint16
          |     +--ro secCeVlanID?       uint16
          |     +--ro secStartTime?      yang:date-and-time
          |     +--ro secL2Type?         cpudefendAttSrcL2Type
          |     +--ro secLinkType?       uint16
          |     +--ro secSrcMac?         pub-type:macAddress
          |     +--ro secDestMac?        pub-type:macAddress
          |     +--ro secL25Type?        cpudefendAttSrcL25Type
          |     +--ro secArpType?        cpudefendAttSrcArpType
          |     +--ro secMplsLabelNum?   uint16
          |     +--ro secMplsLabel1?     uint16
          |     +--ro secMplsLabel2?     uint16
          |     +--ro secMplsLabel3?     uint16
          |     +--ro secMplsLabel4?     uint16
          |     +--ro secMplsLabel5?     uint16
          |     +--ro secL3Type?         cpudefendAttSrcL3Type
          |     +--ro secIPVersion?      uint8
          |     +--ro secIPHeaderLen?    uint8
          |     +--ro secIPTos?          uint8
          |     +--ro secIPLen?          uint16
          |     +--ro secIPId?           uint16
          |     +--ro secIPOff?          uint16
          |     +--ro secIPTtl?          uint8
          |     +--ro secIPProtocol?     uint8
          |     +--ro secIPCheckSum?     uint16
          |     +--ro secSrcAddr?        inet:ipv4-address-no-zone
          |     +--ro secDstAddr?        inet:ipv4-address-no-zone
          |     +--ro secL4Type?         cpudefendAttSrcL4Type
          |     +--ro secSrcPort?        uint16
          |     +--ro secDstPort?        uint16
          |     +--ro secTcpSeqNum?      uint32
          |     +--ro secTcpAckNum?      uint32
          |     +--ro secTcpFlag?        uint8
          |     +--ro secTcpWinSize?     uint8
          |     +--ro secCheckSum?       uint16
          |     +--ro secUdpLen?         uint16
          |     +--ro secIcmpIgmpType?   uint8
          |     +--ro secIcmpIgmpCode?   uint8
          |     +--ro secIgmpGroup?      inet:ipv4-address-no-zone
          |     +--ro secAttSrcData?     string
          |     +--ro secVpi?            uint16
          |     +--ro secVci?            uint16
          +--ro secHostCarStats
          |  +--ro secHostCarStat* [slotID hostCarType statType hostCarID httpHostCarID vlanHostCarID]
          |     +--ro slotID           -> /devm:devm/lpuBoards/lpuBoard/position
          |     +--ro hostCarType      cpudefendhostCarType
          |     +--ro statType         cpudefendstatType
          |     +--ro hostCarID        uint32
          |     +--ro httpHostCarID    uint32
          |     +--ro vlanHostCarID    uint32
          |     +--ro passedBytes?     uint64
          |     +--ro droppedBytes?    uint64
          +--ro secHostCarCfgs
          |  +--ro secHostCarCfg* [socSlotID]
          |     +--ro secSlotID       string
          |     +--ro hostCarType?    cpudefendhostCarType
          |     +--ro defaultCir?     uint32
          |     +--ro defaultPir?     uint32
          |     +--ro defaultCbs?     uint32
          |     +--ro defaultPbs?     uint32
          |     +--ro actualCir?      uint32
          |     +--ro actualPir?      uint32
          |     +--ro actualCbs?      uint32
          |     +--ro actualPbs?      uint32
          |     +--ro droprateEn?     socIfEnable
          |     +--ro logInterval?    uint32
          |     +--ro logThreshold?   uint32
          +--ro secAccessUsers
          |  +--ro secAccessUser* [secSlotId hostcarCarID]
          |     +--ro secSlotId         -> /devm:devm/lpuBoards/lpuBoard/position
          |     +--ro hostcarCarID      uint32
          |     +--ro passedBytes?      uint64
          |     +--ro droppedBytes?     uint64
          |     +--ro secUserName?      string
          |     +--ro userStatus?       cpudefendUserStatus
          |     +--ro secUsrIPV4Addr?   inet:ipv4-address-no-zone
          |     +--ro secUsrIPV6Addr?   inet:ipv6-address-no-zone
          |     +--ro secUsrMac?        pub-type:macAddress
          |     +--ro outterVlanId?     uint16
          |     +--ro innerVlanId?      uint16
          +--rw secCaptPktActNodes
          |  +--rw secCaptPktActNode* [captureIndex]
          |     +--rw captureIndex      uint8
          |     +--rw secIfName         -> /ifm:ifm/interfaces/interface/ifName
          |     +--rw direction?        cpudefendCaptDirection
          |     +--rw pktNumber?        uint32
          |     +--rw timeOut?          uint32
          |     +--rw pktLen?           uint32
          |     +--rw captAclType?      cpudefendCaptAclType
          |     +--rw secCaptAcl?       cpudefendCaptAcl
          |     +--rw secCaptIpv6Acl?   cpudefendCaptIpv6Acl
          |     +--rw vlanType?         cpudefendvlanType
          |     +--rw peBegin?          uint16
          |     +--rw peEnd?            uint16
          |     +--rw ceBegin?          uint16
          |     +--rw ceEnd?            uint16
          |     +--rw bufferonly?       cpudefendDestType
          |     +--rw fileName?         string
          |     +--rw fileSize?         uint8
          |     +--rw overwrite?        boolean

4.7. TCP/IP Attack Defence

Defense against TCP/IP attacks is applied to the router on the edge of the network or other routers that are easily to be attacked by illegal TCP/IP packets. Defense against TCP/IP attacks can protect the CPU of the router against malformed packets, fragmented packets, TCP SYN packets, and UDP packets, ensuring that normal services can be processed.

module: ietf-tcp-ip-attack-defence
+--rw secAntiAttackEnable
       |  +--rw antiEnable?        antiAttackEnableCfgType
       |  +--rw abnormalEnable?    antiAttackEnableCfgType
       |  +--rw udpFloodEnable?    antiAttackEnableCfgType
       |  +--rw tcpSynEnable?      antiAttackEnableCfgType
       |  +--rw icmpFloodEnable?   antiAttackEnableCfgType
       |  +--rw fragmentEnable?    antiAttackEnableCfgType
       +--rw secAntiAttackCarCfg
       |  +--rw cirFrag?   uint32
       |  +--rw cirIcmp?   uint32
       |  +--rw cirTcp?    uint32
       +--rw secAntiAttackStats
       |  +--ro secAntiAttackStat* [attackType]
       |     +--ro attackType    antiAttackType
       |     +--ro totalCount?   uint64
       |     +--ro dropCount?    uint64
       |     +--ro passCount?    uint64

5. Network Infrastructure Device Security Baseline Yang Module

module ietf-mac-limit {
  namespace "urn:ietf:params:xml:ns:yang:ietf-mac-limit";
  prefix maclimit;
/*
  import huawei-pub-type {
    prefix pub-type;
  }
  */
  import ietf-yang-types {
    prefix yang;
  }
  /*
  import huawei-extension {
    prefix ext;
  }

  include huawei-mac-action;
  include huawei-mac-type;
  */
  organization
    "Huawei Technologies.";
  contact
    "Liang Xia: Frank.xialiang@huawei.com";
    "Guangying Zheng: Zhengguangying@huawei.com";
  description
    "MAC address limit.";

  revision 2017-09-01 {
    description
      "Init revision";
    reference "xxx.";
  }

  container mac {
    description
      "MAC address forwarding. ";
    container macLimitRules {
      description
        "Global MAC address learning limit rule.";
      list macLimitRule {
        key "ruleName";
        description
          "Global MAC address learning limit.";
        leaf ruleName {
          type string {
            length "1..31";
          }
          description
            "Global MAC address learning limit rule name.";
        }
        leaf maximum {
          type uint32 {
            range "0..131072";
          }
          mandatory true;
          description
            "Maximum number of MAC addresses that can be learned.";
        }
        leaf rate {
          type uint16 {
            range "0..1000";
          }
          default "0";
          description
            "Interval at which MAC addresses are learned.";
        }
        leaf action {
          type macLimitForward;
          default "discard";
          description
            "Discard or forward after the number of learned MAC addresses reaches the maximum number.";
        }
        leaf alarm {
          type macEnableStatus;
          default "enable";
          description
            "Whether an alarm is generated after the number of learned MAC addresses reaches the maximum number.";
        }
      }
    }
    container vlanMacLimits {
      description
        "VLAN MAC address limit list.";
      list vlanMacLimit {
        key "vlanId";
        description
          "VLAN MAC address limit.";
        leaf vlanId {
          type macVlanId;
          description
            "VLAN ID.";
        }
        leaf maximum {
          type uint32 {
            range "0..130048";
          }
          mandatory true;
          description
            "Maximum number of MAC addresses that can be learned in a VLAN.";
        }
        leaf rate {
          type uint16 {
            range "0..1000";
          }
          default "0";
          description
            "Interval at which MAC addresses are learned in a VLAN.";
        }
        leaf action {
          type macLimitForward;
          default "discard";
          description
            "Discard or forward after the number of learned MAC addresses reaches the maximum number in a VLAN.";
        }
        leaf alarm {
          type macEnableStatus;
          default "enable";
          description
            "Whether an alarm is generated after the number of learned MAC addresses reaches the maximum number in a VLAN.";
        }
      }
    }
    container vsiMacLimits {
      description
        "VSI MAC address limit list.";
      list vsiMacLimit {
        key "vsiName";
        description
          "VSI MAC address limit.";
        leaf vsiName {
          type string {
            length "1..31";
          }
          description
            "VSI name.";
        }
        leaf maximum {
          type uint32 {
            range "0..524288";
          }
          mandatory true;
          description
            "Maximum number of MAC addresses that can be learned in a VSI.";
        }
        leaf rate {
          type uint16 {
            range "0..1000";
          }
          default "0";
          description
            "Interval at which MAC addresses are learned in a VSI.";
        }
        leaf action {
          type macLimitForward;
          default "discard";
          description
            "Discard or forward after the number of learned MAC addresses reaches the maximum number in a VSI.";
        }
        leaf alarm {
          type macEnableStatus;
          default "disable";
          description
            "Whether an alarm is generated after the number of learned MAC addresses reaches the maximum number in a VSI.";
        }
        leaf upThreshold {
          type uint8 {
            range "80..100";
          }
          mandatory true;
          description
            "Upper limit for the number of MAC addresses.";
        }
        leaf downThreshold {
          type uint8 {
            range "60..100";
          }
          mandatory true;
          description
            "Upper limit for the number of MAC addresses.";
        }
      }
    }
    container bdMacLimits {
      description
        "BD MAC address limit list.";
      list bdMacLimit {
        key "bdId";
        description
          "BD MAC address limit.";
        leaf bdId {
          type uint32 {
            range "1..16777215";
          }
          description
            "Specifies the ID of a bridge domain.";
        }
        leaf maximum {
          type uint32 {
            range "0..130048";
          }
          mandatory true;
          description
            "Maximum number of MAC addresses that can be learned in a BD.";
        }
        leaf rate {
          type uint16 {
            range "0..1000";
          }
          default "0";
          description
            "Interval at which MAC addresses are learned in a BD.";
        }
        leaf action {
          type macLimitForward;
          default "discard";
          description
            "Forward or discard the packet.";
        }
        leaf alarm {
          type macEnableStatus;
          default "enable";
          description
            "Whether an alarm is generated after the number of learned MAC addresses reaches the maximum number.";
        }
      }
    }
    container pwMacLimits {
      description
        "PW MAC address limit list.";
      list pwMacLimit {
        key "vsiName pwName";
        description
          "PW MAC address limit.";
        leaf vsiName {
          type string {
            length "1..31";
          }
          description
            "VSI name.";
        }
        leaf pwName {
          type string {
            length "1..15";
          }
          description
            "PW name.";
        }
        leaf maximum {
          type uint32 {
            range "0..130048";
          }
          mandatory true;
          description
            "Maximum number of MAC addresses that can be learned in a PW.";
        }
        leaf rate {
          type uint16 {
            range "0..1000";
          }
          default "0";
          description
            "Interval at which MAC addresses are learned in a PW.";
        }
        leaf action {
          type macLimitForward;
          default "discard";
          description
            "Discard or forward after the number of learned MAC addresses reaches the maximum number in a PW.";
        }
        leaf alarm {
          type macEnableStatus;
          default "enable";
          description
            "Whether an alarm is generated after the number of learned MAC addresses reaches the maximum number in a PW.";
        }
      }
    }
    container ifMacLimits {
      description
        "Interface MAC address limit list.";
      list ifMacLimit {
        key "ifName limitType";
        description
          "Interface MAC address limit.";
        leaf ifName {
          type pub-type:ifName;
          description
            "Interface name.";
        }
        leaf limitType {
          type limitType;
          description
            "Interface MAC limit type.";
        }
        leaf ruleName {
          type leafref {
            path "/mac/macLimitRules/macLimitRule/ruleName";
          }
          description
            "Rule name.";
        }
        leaf maximum {
          type uint32 {
            range "0..131072";
          }
          mandatory true;
          description
            "Maximum number of MAC addresses that can be learned on an interface.";
        }
        leaf rate {
          type uint16 {
            range "0..1000";
          }
          default "0";
          description
            "Interval (ms) at which MAC addresses are learned on an interface.";
        }
        leaf action {
          type macLimitForward;
          default "discard";
          description
            "Discard or forward after the number of learned MAC addresses reaches the maximum number on an interface";
        }
        leaf alarm {
          type macEnableStatus;
          default "enable";
          description
            "Whether an alarm is generated after the number of learned MAC addresses reaches the maximum number on an interface.";
        }
      }
    }
    container ifVlanMacLimits {
      description
        "Interface + VLAN MAC address limit list.";
      list ifVlanMacLimit {
        key "ifName vlanBegin limitType";
        config false;
        description
          "Interface + VLAN MAC address limit.";
        leaf ifName {
          type pub-type:ifName;
          description
            "Name of an interface. ";
        }
        leaf vlanBegin {
          type macVlanId;
          description
            "Start VLAN ID.";
        }
        leaf vlanEnd {
          type macVlanId;
          description
            "End VLAN ID.";
        }
        leaf limitType {
          type limitType;
          description
            "Interface MAC limit type.";
        }
        leaf ruleName {
          type leafref {
            path "/mac/macLimitRules/macLimitRule/ruleName";
          }
          description
            "Rule name.";
        }
        leaf maximum {
          type uint32 {
            range "0..131072";
          }
          mandatory true;
          description
            "Maximum number of MAC addresses that can be learned on an interface.";
        }
        leaf rate {
          type uint16 {
            range "0..1000";
          }
          mandatory true;
          description
            "Interval (ms) at which MAC addresses are learned on an interface.";
        }
        leaf action {
          type macLimitForward;
          default "discard";
          description
            "Discard or forward the packet.";
        }
        leaf alarm {
          type macEnableStatus;
          default "enable";
          description
            "Whether an alarm is generated after the number of learned MAC addresses reaches the maximum number.";
        }
      }
    }
    container subifMacLimits {
      description
        "Sub-interface MAC address limit list.";
      list subifMacLimit {
        key "ifName limitType";
        description
          "Sub-interface MAC address limit.";
        leaf ifName {
          type pub-type:ifName;
          description
            "Name of a sub-interface. ";
        }
        leaf limitType {
          type limitType;
          description
            "Sub-interface MAC limit type.";
        }
        leaf vsiName {
          type string {
            length "1..36";
          }
          config false;
          mandatory true;
          description
            "VSI name , EVPN name or bridge domain ID.";
        }
        leaf ruleName {
          type string {
            length "1..31";
          }
          mandatory true;
          description
            "Rule name.";
        }
        leaf maximum {
          type uint32 {
            range "0..131072";
          }
          mandatory true;
          description
            "Maximum number of MAC addresses that can be learned on a sub-interface.";
        }
        leaf rate {
          type uint16 {
            range "0..1000";
          }
          default "0";
          description
            "Interval (ms) at which MAC addresses are learned on a sub-interface.";
        }
        leaf action {
          type macLimitForward;
          default "discard";
          description
            "Discard or forward after the number of learned MAC addresses reaches the maximum number on a sub-interface.";
        }
        leaf alarm {
          type macEnableStatus;
          default "enable";
          description
            "Whether an alarm is generated after the number of learned MAC addresses reaches the maximum number on a sub-interface.";
        }
      }
    }
    container vsiStormSupps {
      description
        "VSI Suppression List.";
      list vsiStormSupp {
        key "vsiName suppressType";
        description
          "VSI Suppression.";
        leaf vsiName {
          type string {
            length "1..31";
          }
          description
            "VSI name.";
        }
        leaf suppressType {
          type suppressType;
          description
            "Traffic suppression type.";
        }
        leaf cir {
          type uint64 {
            range "0..4294967295";
          }
          default "0";
          description
            "CIR value.";
        }
        leaf cbs {
          type uint64 {
            range "0..4294967295";
          }
          description
            "CBS value.";
        }
      }
    }
    container vlanStormSupps {
      description
        "VLAN Suppression List.";
      list vlanStormSupp {
        key "vlanId suppressType";
        description
          "VLAN Suppression.";
        leaf vlanId {
          type macVlanId;
          description
            "VLAN ID.";
        }
        leaf suppressType {
          type suppressType;
          description
            "Traffic suppression type.";
        }
        leaf cir {
          type uint64 {
            range "64..4294967295";
          }
          default "64";
          description
            "CIR value.";
        }
        leaf cbs {
          type uint64 {
            range "10000..4294967295";
          }
          description
            "CBS value.";
        }
      }
    }
    container subIfSuppresss {
      description
        "Sub-interface traffic suppression list.";
      list subIfSuppress {
        key "ifName suppressType direction";
        description
          "Sub-Interface traffic suppression.";
        leaf ifName {
          type pub-type:ifName;
          description
            "Sub-interface name.";
        }
        leaf suppressType {
          type suppressType;
          description
            "Suppression type.";
        }
        leaf direction {
          type directionType;
          description
            "Suppression direction.";
        }
        leaf cir {
          type uint64 {
            range "0..4294967295";
          }
          default "0";
          description
            "CIR value.";
        }
        leaf cbs {
          type uint64 {
            range "0..4294967295";
          }
          description
            "CBS value.";
        }
      }
    }
    container pwSuppresss {
      description
        "PW traffic suppress list.";
      list pwSuppress {
        key "vsiName pwName suppressType";
        description
          "PW traffic suppression.";
        leaf vsiName {
          type string {
            length "1..31";
          }
          description
            "VSI name.";
        }
        leaf pwName {
          type string {
            length "1..15";
          }
          description
            "PW name.";
        }
        leaf suppressType {
          type suppressType;
          description
            "Traffic suppression type.";
        }
        leaf cir {
          type uint64 {
            range "100..4294967295";
          }
          default "100";
          description
            "CIR value.";
        }
        leaf cbs {
          type uint64 {
            range "100..4294967295";
          }
          description
            "CBS value.";
        }
      }
    }
    container pwSuppressPtns {
      description
        "PW traffic suppress list.";
      list pwSuppressPtn {
        key "vsiName peerIp pwId pwEncap";
        description
          "PW traffic suppression.";
        leaf vsiName {
          type string {
            length "1..31";
          }
          description
            "VSI name.";
        }
        leaf peerIp {
          type string {
            length "0..255";
            pattern "((([1-9]?[0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])\\.){3}([1-9]?[0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5]))";
          }
          description
            "Peer IP address.";
        }
        leaf pwId {
          type uint32 {
            range "1..4294967295";
          }
          description
            "PW ID.";
        }
        leaf pwEncap {
          type macPwEncapType;
          description
            "PW encapsulation type.";
        }
        leaf isEnable {
          type boolean;
          default "true";
          description
            "Enable status.";
        }
        leaf suppressType {
          type suppressStyle;
          default "absoluteValue";
          description
            "Traffic suppression type.";
        }
        leaf broadcast {
          type uint32 {
            range "0..200000000";
          }
          default "1000";
          description
            "Broadcast suppression (kbit/s)";
        }
        leaf unicast {
          type uint32 {
            range "0..200000000";
          }
          default "1000";
          description
            "Unknown unicast suppression (kbit/s).";
        }
        leaf multicast {
          type uint32 {
            range "0..200000000";
          }
          default "1000";
          description
            "Multicast suppression (kbit/s).";
        }
      }
    }
    container vsiInSuppressions {
      description
        "VSI inbound traffic suppression list.";
      list vsiInSuppression {
        key "vsiName";
        description
          "VSI inbound traffic suppression.";
        leaf vsiName {
          type string {
            length "1..31";
          }
          description
            "VSI name.";
        }
        leaf inboundSupp {
          type macEnableStatus;
          default "enable";
          description
            "Inbound suppression.";
        }
      }
    }
    container vsiOutSuppressions {
      description
        "VSI outbound traffic suppression list.";
      list vsiOutSuppression {
        key "vsiName";
        description
          "VSI outbound traffic suppression.";
        leaf vsiName {
          type string {
            length "1..31";
          }
          description
            "VSI name.";
        }
        leaf outboundSupp {
          type macEnableStatus;
          default "enable";
          description
            "Outbound suppression.";
        }
      }
    }
    container vsiSuppresss {
      description
        "VSI traffic suppression list.";
      list vsiSuppress {
        key "subIfName";
        description
          "VSI traffic suppression.";
        leaf vsiName {
          type string {
            length "1..31";
          }
          mandatory true;
          description
            "VSI name.";
        }
        leaf subIfName {
          type pub-type:ifName;
          description
            "Sub-interface name.";
        }
        leaf isEnable {
          type boolean;
          default "true";
          description
            "Enable status.";
        }
        leaf suppressType {
          type suppressStyle;
          default "percent";
          description
            "Traffic suppression type.";
        }
        leaf broadcast {
          type uint32 {
            range "0..200000000";
          }
          default "64";
          description
            "Broadcast suppression (kbit/s)";
        }
        leaf broadcastPercent {
          type uint32 {
            range "0..100";
          }
          default "1";
          description
            "Broadcast suppression.";
        }
        leaf unicast {
          type uint32 {
            range "0..200000000";
          }
          default "64";
          description
            "Unknown unicast suppression (kbit/s).";
        }
        leaf unicastPercent {
          type uint32 {
            range "0..100";
          }
          default "1";
          description
            "Unknown unicast suppression.";
        }
        leaf multicast {
          type uint32 {
            range "0..200000000";
          }
          default "64";
          description
            "Multicast suppression (kbit/s).";
        }
        leaf multicastPercent {
          type uint32 {
            range "0..100";
          }
          default "1";
          description
            "Multicast suppression.";
        }
      }
    }
    container vsiTotalNumbers {
      description
        "List of MAC address total numbers in a VSI.";
      list vsiTotalNumber {
        key "vsiName slotId macType";
        config false;
        description
          "Total number of MAC addresses in a VSI.";
        leaf vsiName {
          type string {
            length "1..31";
          }
          description
            "VSI name.";
        }
        leaf slotId {
          type string {
            length "1..24";
          }
          description
            "Slot ID.";
        }
        leaf macType {
          type macType;
          description
            "MAC address type.";
        }
        leaf number {
          type uint32;
          mandatory true;
          description
            "Number of MAC addresses.";
        }
      }
    }
    container ifStormSupps {
      description
        "Interface traffic suppression list.";
      list ifStormSupp {
        key "ifName suppressType";
        description
          "Interface traffic suppression.";
        leaf ifName {
          type pub-type:ifName;
          description
            "Name of an interface. ";
        }
        leaf suppressType {
          type suppressType;
          description
            "Suppression type.";
        }
        leaf percent {
          type uint64 {
            range "0..99";
          }
          description
            "Percent.";
        }
        leaf packets {
          type uint64 {
            range "0..148810000";
          }
          description
            "Packets per second.";
        }
        leaf cir {
          type uint64 {
            range "0..100000000";
          }
          description
            "CIR(Kbit/s).";
        }
        leaf cbs {
          type uint64 {
            range "10000..4294967295";
          }
          description
            "CBS(Bytes).";
        }
      }
    }
    container ifStormBlocks {
      description
        "Interface traffic block list.";
      list ifStormBlock {
        key "ifName blockType direction";
        description
          "Interface traffic suppression.";
        leaf ifName {
          type pub-type:ifName;
          description
            "Name of an interface. ";
        }
        leaf blockType {
          type suppressType;
          description
            "Block type.";
        }
        leaf direction {
          type directionType;
          description
            "Direction.";
        }
      }
    }
    container ifStormContrls {
      description
        "Interface storm control list.";
      list ifStormContrl {
        key "ifName";
        description
          "Interface storm control.";
        leaf ifName {
          type pub-type:ifName;
          description
            "Name of an interface. ";
        }
        leaf action {
          type stormCtrlActionType;
          default "normal";
          description
            "Action type.";
        }
        leaf trapEnable {
          type enableType;
          default "disable";
          description
            "Trap state.";
        }
        leaf logEnable {
          type enableType;
          default "disable";
          description
            "Log state.";
        }
        leaf interval {
          type uint64 {
            range "1..180";
          }
          default "5";
          description
            "Detect interval.";
        }
        container ifPacketContrlAttributes {
          description
            "Storm control rate list.";
          list ifPacketContrlAttribute {
            key "packetType";
            description
              "Storm control rate.";
            leaf packetType {
              type stormCtrlType;
              description
                "Packet type.";
            }
            leaf rateType {
              type stormCtrlRateType;
              default "pps";
              description
                "Storm control rate type.";
            }
            leaf minRate {
              type uint32 {
                range "1..148810000";
              }
              mandatory true;
              description
                "Storm control min rate.";
            }
            leaf maxRate {
              type uint64 {
                range "1..148810000";
              }
              mandatory true;
              description
                "Storm control max rate.";
            }
          }
        }
        container ifstormContrlInfos {
          description
            "Storm control info list.";
          list ifstormContrlInfo {
            key "packetType";
            config false;
            description
              "Storm control info";
            leaf packetType {
              type stormCtrlType;
              description
                "Packet type.";
            }
            leaf punishStatus {
              type stormCtrlActionType;
              description
                "Storm control status.";
            }
            leaf lastPunishTime {
              type string {
                length "1..50";
              }
              description
                "Last punish time.";
            }
          }
        }
      }
    }
  }
}

6. IANA Considerations

This document makes no request of IANA.

Note to RFC Editor: this section may be removed on publication as an RFC.

7. Security Considerations

To be added.

8. Acknowledgements

9. References

9.1. Normative References

[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate Requirement Levels", BCP 14, RFC 2119, DOI 10.17487/RFC2119, March 1997.

9.2. Informative References

[I-D.ietf-netconf-subscribed-notifications] Voit, E., Clemm, A., Prieto, A., Nilsen-Nygaard, E. and A. Tripathy, "Custom Subscription to Event Notifications", Internet-Draft draft-ietf-netconf-subscribed-notifications-03, July 2017.
[I-D.ietf-netconf-yang-push] Clemm, A., Voit, E., Prieto, A., Tripathy, A., Nilsen-Nygaard, E., Bierman, A. and B. Lengyel, "Subscribing to YANG datastore push updates", Internet-Draft draft-ietf-netconf-yang-push-08, August 2017.
[I-D.ietf-sacm-information-model] Waltermire, D., Watson, K., Kahn, C., Lorenzin, L., Cokus, M., Haynes, D. and H. Birkholz, "SACM Information Model", Internet-Draft draft-ietf-sacm-information-model-10, April 2017.

Authors' Addresses

Liang Xia Huawei EMail: frank.xialiang@huawei.com
Guangying Zheng Huawei EMail: zhengguangying@huawei.com