PIM Working Group X. Liu Internet-Draft Jabil Intended Status: Standard Track F. Guo Expires: December 31, 2017 Huawei M. Sivakumar Cisco P. McAllister Metaswitch Networks A. Peter Juniper Networks June 30, 2017 A YANG data model for Internet Group Management Protocol (IGMP) and Multicast Listener Discovery (MLD) draft-ietf-pim-igmp-mld-yang-04 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), its areas, and its working groups. Note that other groups may also distribute working documents as Internet- Drafts. 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." 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Abstract This document defines a YANG data model that can be used to configure and manage Internet Group Management Protocol (IGMP) and Multicast Listener Discovery (MLD) devices. Table of Contents 1. Introduction ................................................ 2 1.1. Requirements Language................................... 3 1.2. Terminology ............................................ 3 2. Design of Data model......................................... 3 2.1. Scope of model ......................................... 3 2.2. Optional capabilities................................... 3 2.3. Position of address family in hierarchy................. 4 3. Module Structure ............................................ 4 3.1. IGMP and MLD Configuration.............................. 4 3.2. IGMP and MLD Operational State.......................... 8 3.3. IGMP and MLD RPC....................................... 12 4. IGMP and MLD YANG Modules................................... 13 5. Security Considerations..................................... 38 6. IANA Considerations ........................................ 39 7. References ................................................. 39 7.1. Normative References................................... 39 7.2. Informative References................................. 40 8. Acknowledgments ............................................ 41 1. Introduction YANG [RFC6020] [RFC6087] is a data definition language that was introduced to model the configuration and running state of a device managed using NETCONF [RFC6241]. YANG is now also being used as a component of wider management interfaces, such as CLIs. This document defines a YANG data model that can be used to configure and manage Internet Group Management Protocol (IGMP) and Multicast Listener Discovery (MLD) devices. This model will support the core IGMP and MLD protocols, as well as many other features mentioned in separate IGMP and MLD RFCs. Non-core features are defined as optional in the provided data model. Liu & Guo, etc Expires December 31, 2017 [Page 2] Internet-Draft IGMP & MLD Yang Model July 2017 1.1. Requirements Language 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 RFC-2119 [RFC2119]. 1.2. Terminology The terminology for describing YANG data models is found in [RFC6020]. This document employs YANG tree diagrams, which are explained in [I- D.ietf-netmod-rfc6087bis]. 2. Design of Data model 2.1. Scope of model The model covers IGMPv1 [RFC1112], IGMPv2 [RFC2236], IGMPv3 [RFC3376] and MLDv1 [RFC2710], MLDv2 [RFC3810]. The configuration of IGMP and MLD features are not all included in this document of the data model. This model is being circulated in its mainly form of the basic hierarchy. The operational state fields and RPC definitions of this model can also be extended, though the structure of what has been written may be taken as representative of the structure of the whole model. This model does not cover other IGMP and MLD related protocols such as IGMP/MLD Proxy [RFC4605] or IGMP/MLD Snooping [RFC4541] etc., these will be specified in separate documents. 2.2. Optional capabilities This model is designed to represent the capabilities of IGMP and MLD devices with various specifications, including some with basic subsets of the IGMP and MLD protocols. The main design goals of this document are that any major now-existing implementation may be said to support the basic model, and that the configuration of all implementations meeting the specification is easy to express through some combination of the features in the basic model and simple vendor augmentations. There is also value in widely-supported features being standardized, to save work for individual vendors, and so that mapping between different vendors' configuration is not needlessly complicated. Therefore these modules declare a number of features representing capabilities that not all deployed devices support. Liu & Guo, etc Expires December 31, 2017 [Page 3] Internet-Draft IGMP & MLD Yang Model July 2017 The extensive use of feature declarations should also substantially simplify the capability negotiation process for a vendor's IGMP and MLD implementations. On the other hand, operational state parameters are not so widely designated as features, as there are many cases where the defaulting of an operational state parameter would not cause any harm to the system, and it is much more likely that an implementation without native support for a piece of operational state would be able to derive a suitable value for a state variable that is not natively supported. For the same reason, basic constant ranges (for example, query interval maximum and minimum value) will be used in the model, as defined with "-basic" postfix form. It is expected that vendors will augment the model with extended specific restrictions that might be required, as defined a feature with "-extended" postfix form. Vendors may also extend the features list with proprietary extensions. 2.3. Position of address family in hierarchy The current document contains IGMP and MLD as separate schema branches in the structure. The reason for this is to make it easier for implementations which may optionally choose to support specific address families. And the names of objects may be different between the IPv4 (IGMP) and IPv6 (MLD) address families. 3. Module Structure 3.1. IGMP and MLD Configuration The IGMP and MLD modules define the routing-control-plane-protocol- wide configuration options separately in a three-level hierarchy as listed below: Global level: IGMP or MLD configuration attributes for the entire routing system. Interface-global: IGMP or MLD configuration attributes are applicable to all the interfaces whose interface-level corresponding attributes are not existing, with same attributes' value for these interfaces. Interface-level: IGMP or MLD configuration attributes specific to the given interface. Where fields are not genuinely essential to protocol operation, they are marked as optional. Some fields will be essential but have a Liu & Guo, etc Expires December 31, 2017 [Page 4] Internet-Draft IGMP & MLD Yang Model July 2017 default specified, so that they need not be configured explicitly. The module structure also applies, where applicable, to the operational state and notifications as well. We define the IGMP and MLD model as a protocol-centric model , and the IGMP and MLD model augments "/rt:routing/rt:control-plane- protocols/ rt:control-plane-protocol" and would allow a single protocol instance per VRF. augment /rt:routing/rt:control-plane-protocols/rt:control-plane-protocol: +--rw igmp +--rw global | +--rw enable? boolean {global-admin-enable}? | +--rw max-entries? uint32 {global-max-entries}? | +--rw max-groups? uint32 {global-max-groups}? +--rw interfaces +--rw (last-member-query-interval)? | +--:(last-member-query-interval-basic) | | +--rw last-member-query-interval-basic? uint16 | +--:(last-member-query-interval-extended) | +--rw last-member-query-interval-extended? uint16 {intf-last-member-query-interval-extended}? +--rw max-groups-per-interface? uint32 {intf-max-groups}? +--rw (query-interval)? | +--:(query-interval-basic) | | +--rw query-interval-basic? uint16 | +--:(query-interval-extended) | +--rw query-interval-extended? uint16 {intf-query-interval-extended}? +--rw (query-max-response-time)? | +--:(query-max-response-time-basic) | | +--rw query-max-response-time-basic? uint16 | +--:(query-max-response-time-extended) | +--rw query-max-response-time-extended? uint16 {intf-query-max-response-time-extended}? +--rw require-router-alert? boolean {intf-require-router-alert}? +--rw (robustness-variable)? | +--:(robustness-variable-basic) | | +--rw robustness-variable-basic? uint8 | +--:(robustness-variable-extended) | +--rw robustness-variable-extended? uint8 {intf-robustness-variable-extended}? +--rw version? uint8 +--rw interface* [interface-name] +--rw interface-name if:interface-ref +--rw enable? boolean {intf-admin-enable}? +--rw group-policy? string +--rw immediate-leave? empty {intf-immediate-leave}? +--rw (last-member-query-interval)? | +--:(last-member-query-interval-basic) | | +--rw last-member-query-interval-basic? uint16 | +--:(last-member-query-interval-extended) Liu & Guo, etc Expires December 31, 2017 [Page 5] Internet-Draft IGMP & MLD Yang Model July 2017 | +--rw last-member-query-interval-extended? uint16 {intf-last-member-query-interval-extended}? +--rw max-groups? uint32 {intf-max-groups}? +--rw max-group-sources? uint32 {intf-max-group-sources}? +--rw (query-interval)? | +--:(query-interval-basic) | | +--rw query-interval-basic? uint16 | +--:(query-interval-extended) | +--rw query-interval-extended? uint16 {intf-query-interval-extended}? +--rw (query-max-response-time)? | +--:(query-max-response-time-basic) | | +--rw query-max-response-time-basic? uint16 | +--:(query-max-response-time-extended) | +--rw query-max-response-time-extended? uint16 {intf-query-max-response-time-extended}? +--rw require-router-alert? boolean {intf-require-router-alert}? +--rw (robustness-variable)? | +--:(robustness-variable-basic) | | +--rw robustness-variable-basic? uint8 | +--:(robustness-variable-extended) | +--rw robustness-variable-extended? uint8 {intf-robustness-variable-extended}? +--rw source-policy? string {intf-source-policy}? +--rw verify-source-subnet? empty {intf-verify-source-subnet}? +--rw version? uint8 +--rw join-group* inet:ipv4-address {intf-join-group}? +--rw ssm-map* [source-addr group-policy] {intf-ssm-map}? | +--rw source-addr ssm-map-ipv4-addr-type | +--rw group-policy string +--rw static-group* [group source-addr] {intf-static-group}? +--rw group inet:ipv4-address +--rw source-addr source-ipv4-addr-type augment /rt:routing/rt:control-plane-protocols/rt:control-plane-protocol: +--rw mld +--rw global | +--rw enable? boolean {global-admin-enable}? | +--rw max-entries? uint32 {global-max-entries}? | +--rw max-groups? uint32 {global-max-groups}? +--rw interfaces +--rw (last-member-query-interval)? | +--:(last-member-query-interval-basic) | | +--rw last-member-query-interval-basic? uint16 | +--:(last-member-query-interval-extended) | +--rw last-member-query-interval-extended? uint16 {intf-last-member-query-interval-extended}? +--rw max-groups-per-interface? uint32 {intf-max-groups}? +--rw (query-interval)? | +--:(query-interval-basic) | | +--rw query-interval-basic? uint16 | +--:(query-interval-extended) | +--rw query-interval-extended? uint16 {intf-query-interval-extended}? +--rw (query-max-response-time)? | +--:(query-max-response-time-basic) Liu & Guo, etc Expires December 31, 2017 [Page 6] Internet-Draft IGMP & MLD Yang Model July 2017 | | +--rw query-max-response-time-basic? uint16 | +--:(query-max-response-time-extended) | +--rw query-max-response-time-extended? uint16 {intf-query-max-response-time-extended}? +--rw require-router-alert? boolean {intf-require-router-alert}? +--rw (robustness-variable)? | +--:(robustness-variable-basic) | | +--rw robustness-variable-basic? uint8 | +--:(robustness-variable-extended) | +--rw robustness-variable-extended? uint8 {intf-robustness-variable-extended}? +--rw version? uint8 +--rw interface* [interface-name] +--rw interface-name if:interface-ref +--rw enable? boolean {intf-admin-enable}? +--rw group-policy? string +--rw immediate-leave? empty {intf-immediate-leave}? +--rw (last-member-query-interval)? | +--:(last-member-query-interval-basic) | | +--rw last-member-query-interval-basic? uint16 | +--:(last-member-query-interval-extended) | +--rw last-member-query-interval-extended? uint16 {intf-last-member-query-interval-extended}? +--rw max-groups? uint32 {intf-max-groups}? +--rw max-group-sources? uint32 {intf-max-group-sources}? +--rw (query-interval)? | +--:(query-interval-basic) | | +--rw query-interval-basic? uint16 | +--:(query-interval-extended) | +--rw query-interval-extended? uint16 {intf-query-interval-extended}? +--rw (query-max-response-time)? | +--:(query-max-response-time-basic) | | +--rw query-max-response-time-basic? uint16 | +--:(query-max-response-time-extended) | +--rw query-max-response-time-extended? uint16 {intf-query-max-response-time-extended}? +--rw require-router-alert? boolean {intf-require-router-alert}? +--rw (robustness-variable)? | +--:(robustness-variable-basic) | | +--rw robustness-variable-basic? uint8 | +--:(robustness-variable-extended) | +--rw robustness-variable-extended? uint8 {intf-robustness-variable-extended}? +--rw source-policy? string {intf-source-policy}? +--rw verify-source-subnet? empty {intf-verify-source-subnet}? +--rw version? uint8 +--rw join-group* inet:ipv6-address {intf-join-group}? +--rw ssm-map* [source-addr group-policy] {intf-ssm-map}? | +--rw source-addr ssm-map-ipv6-addr-type | +--rw group-policy string +--rw static-group* [group source-addr] {intf-static-group}? +--rw group inet:ipv6-address +--rw source-addr source-ipv6-addr-type Liu & Guo, etc Expires December 31, 2017 [Page 7] Internet-Draft IGMP & MLD Yang Model July 2017 3.2. IGMP and MLD Operational State The IGMP or MLD module contains operational state information also in a three-level hierarchy as mentioned earlier and separately listed as below. Global level: IGMP or MLD operational state attributes for the entire routing system Interface-global: IGMP or MLD interface level operational state attributes are applicable to all the interfaces whose interface- level corresponding attributes are not existing, with same attributes' value for these interfaces. Interface-specific: IGMP or MLD operational state attributes specific to the given interface. augment /rt:routing-state/rt:control-plane-protocols/rt:control-plane-protocol: +--ro igmp +--ro global | +--ro enable? boolean {global-admin-enable}? | +--ro max-entries? uint32 {global-max-entries}? | +--ro max-groups? uint32 {global-max-groups}? | +--ro entries-count? uint32 | +--ro groups-count? uint32 | +--ro statistics | +--ro discontinuity-time? yang:date-and-time | +--ro error | | +--ro total? yang:counter64 | | +--ro query? yang:counter64 | | +--ro report? yang:counter64 | | +--ro leave? yang:counter64 | | +--ro checksum? yang:counter64 | | +--ro too-short? yang:counter64 | +--ro received | | +--ro total? yang:counter64 | | +--ro query? yang:counter64 | | +--ro report? yang:counter64 | | +--ro leave? yang:counter64 | +--ro sent | +--ro total? yang:counter64 | +--ro query? yang:counter64 | +--ro report? yang:counter64 | +--ro leave? yang:counter64 +--ro interfaces +--ro (last-member-query-interval)? | +--:(last-member-query-interval-basic) | | +--ro last-member-query-interval-basic? uint16 Liu & Guo, etc Expires December 31, 2017 [Page 8] Internet-Draft IGMP & MLD Yang Model July 2017 | +--:(last-member-query-interval-extended) | +--ro last-member-query-interval-extended? uint16 {intf-last-member-query-interval-extended}? +--ro max-groups-per-interface? uint32 {intf-max-groups}? +--ro (query-interval)? | +--:(query-interval-basic) | | +--ro query-interval-basic? uint16 | +--:(query-interval-extended) | +--ro query-interval-extended? uint16 {intf-query-interval-extended}? +--ro (query-max-response-time)? | +--:(query-max-response-time-basic) | | +--ro query-max-response-time-basic? uint16 | +--:(query-max-response-time-extended) | +--ro query-max-response-time-extended? uint16 {intf-query-max-response-time-extended}? +--ro require-router-alert? boolean {intf-require-router-alert}? +--ro (robustness-variable)? | +--:(robustness-variable-basic) | | +--ro robustness-variable-basic? uint8 | +--:(robustness-variable-extended) | +--ro robustness-variable-extended? uint8 {intf-robustness-variable-extended}? +--ro interface* [interface-name] +--ro interface-name if:interface-ref +--ro enable? boolean {intf-admin-enable}? +--ro group-policy? string +--ro immediate-leave? empty {intf-immediate-leave}? +--ro (last-member-query-interval)? | +--:(last-member-query-interval-basic) | | +--ro last-member-query-interval-basic? uint16 | +--:(last-member-query-interval-extended) | +--ro last-member-query-interval-extended? uint16 {intf-last-member-query-interval-extended}? +--ro max-groups? uint32 {intf-max-groups}? +--ro max-group-sources? uint32 {intf-max-group-sources}? +--ro (query-interval)? | +--:(query-interval-basic) | | +--ro query-interval-basic? uint16 | +--:(query-interval-extended) | +--ro query-interval-extended? uint16 {intf-query-interval-extended}? +--ro (query-max-response-time)? | +--:(query-max-response-time-basic) | | +--ro query-max-response-time-basic? uint16 | +--:(query-max-response-time-extended) | +--ro query-max-response-time-extended? uint16 {intf-query-max-response-time-extended}? +--ro require-router-alert? boolean {intf-require-router-alert}? +--ro (robustness-variable)? | +--:(robustness-variable-basic) | | +--ro robustness-variable-basic? uint8 | +--:(robustness-variable-extended) | +--ro robustness-variable-extended? uint8 {intf-robustness-variable-extended}? +--ro source-policy? string {intf-source-policy}? +--ro verify-source-subnet? empty {intf-verify-source-subnet}? Liu & Guo, etc Expires December 31, 2017 [Page 9] Internet-Draft IGMP & MLD Yang Model July 2017 +--ro version? uint8 +--ro join-group* inet:ipv4-address {intf-join-group}? +--ro ssm-map* [source-addr group-policy] {intf-ssm-map}? | +--ro source-addr ssm-map-ipv4-addr-type | +--ro group-policy string +--ro static-group* [group source-addr] {intf-static-group}? | +--ro group inet:ipv4-address | +--ro source-addr source-ipv4-addr-type +--ro oper-status? enumeration +--ro querier? inet:ipv4-address +--ro joined-group* inet:ipv4-address {intf-join-group}? +--ro group* [address] +--ro address inet:ipv4-address +--ro expire? uint32 +--ro filter-mode? enumeration +--ro host-count? uint32 +--ro up-time? uint32 +--ro host* inet:ipv4-address +--ro last-reporter? inet:ipv4-address +--ro source* [address] +--ro address inet:ipv4-address +--ro expire? uint32 +--ro up-time? uint32 +--ro last-reporter? inet:ipv4-address augment /rt:routing-state/rt:control-plane-protocols/rt:control-plane-protocol: +--ro mld +--ro global | +--ro enable? boolean {global-admin-enable}? | +--ro max-entries? uint32 {global-max-entries}? | +--ro max-groups? uint32 {global-max-groups}? | +--ro entries-count? uint32 | +--ro groups-count? uint32 | +--ro statistics | +--ro discontinuity-time? yang:date-and-time | +--ro error | | +--ro total? yang:counter64 | | +--ro query? yang:counter64 | | +--ro report? yang:counter64 | | +--ro leave? yang:counter64 | | +--ro checksum? yang:counter64 | | +--ro too-short? yang:counter64 | +--ro received | | +--ro total? yang:counter64 | | +--ro query? yang:counter64 | | +--ro report? yang:counter64 | | +--ro leave? yang:counter64 | +--ro sent | +--ro total? yang:counter64 | +--ro query? yang:counter64 Liu & Guo, etc Expires December 31, 2017 [Page 10] Internet-Draft IGMP & MLD Yang Model July 2017 | +--ro report? yang:counter64 | +--ro leave? yang:counter64 +--ro interfaces +--ro (last-member-query-interval)? | +--:(last-member-query-interval-basic) | | +--ro last-member-query-interval-basic? uint16 | +--:(last-member-query-interval-extended) | +--ro last-member-query-interval-extended? uint16 {intf-last-member-query-interval-extended}? +--ro max-groups-per-interface? uint32 {intf-max-groups}? +--ro (query-interval)? | +--:(query-interval-basic) | | +--ro query-interval-basic? uint16 | +--:(query-interval-extended) | +--ro query-interval-extended? uint16 {intf-query-interval-extended}? +--ro (query-max-response-time)? | +--:(query-max-response-time-basic) | | +--ro query-max-response-time-basic? uint16 | +--:(query-max-response-time-extended) | +--ro query-max-response-time-extended? uint16 {intf-query-max-response-time-extended}? +--ro require-router-alert? boolean {intf-require-router-alert}? +--ro (robustness-variable)? | +--:(robustness-variable-basic) | | +--ro robustness-variable-basic? uint8 | +--:(robustness-variable-extended) | +--ro robustness-variable-extended? uint8 {intf-robustness-variable-extended}? +--ro interface* [interface-name] +--ro interface-name if:interface-ref +--ro enable? boolean {intf-admin-enable}? +--ro group-policy? string +--ro immediate-leave? empty {intf-immediate-leave}? +--ro (last-member-query-interval)? | +--:(last-member-query-interval-basic) | | +--ro last-member-query-interval-basic? uint16 | +--:(last-member-query-interval-extended) | +--ro last-member-query-interval-extended? uint16 {intf-last-member-query-interval-extended}? +--ro max-groups? uint32 {intf-max-groups}? +--ro max-group-sources? uint32 {intf-max-group-sources}? +--ro (query-interval)? | +--:(query-interval-basic) | | +--ro query-interval-basic? uint16 | +--:(query-interval-extended) | +--ro query-interval-extended? uint16 {intf-query-interval-extended}? +--ro (query-max-response-time)? | +--:(query-max-response-time-basic) | | +--ro query-max-response-time-basic? uint16 | +--:(query-max-response-time-extended) | +--ro query-max-response-time-extended? uint16 {intf-query-max-response-time-extended} +--ro require-router-alert? boolean {intf-require-router-alert}? +--ro (robustness-variable)? Liu & Guo, etc Expires December 31, 2017 [Page 11] Internet-Draft IGMP & MLD Yang Model July 2017 | +--:(robustness-variable-basic) | | +--ro robustness-variable-basic? uint8 | +--:(robustness-variable-extended) | +--ro robustness-variable-extended? uint8 {intf-robustness-variable-extended}? +--ro source-policy? string {intf-source-policy}? +--ro verify-source-subnet? empty {intf-verify-source-subnet}? +--ro version? uint8 +--ro join-group* inet:ipv6-address {intf-join-group}? +--ro ssm-map* [source-addr group-policy] {intf-ssm-map}? | +--ro source-addr ssm-map-ipv6-addr-type | +--ro group-policy string +--ro static-group* [group source-addr] {intf-static-group}? | +--ro group inet:ipv6-address | +--ro source-addr source-ipv6-addr-type +--ro oper-status? enumeration +--ro querier? inet:ipv6-address +--ro joined-group* inet:ipv6-address {intf-join-group}? +--ro group* [address] +--ro address inet:ipv6-address +--ro expire? uint32 +--ro filter-mode? enumeration +--ro host-count? uint32 +--ro up-time? uint32 +--ro host* inet:ipv6-address +--ro last-reporter? inet:ipv6-address +--ro source* [address] +--ro address inet:ipv6-address +--ro expire? uint32 +--ro up-time? uint32 +--ro last-reporter? inet:ipv6-address 3.3. IGMP and MLD RPC rpcs: +---x clear-igmp-groups {rpc-clear-groups}? | +---w input | +---w interface? -> /rt:routing/control-plane-protocols/control-plane-protocol/igmp/interfaces/interface/interface-name | +---w group? inet:ipv4-address | +---w source? inet:ipv4-address +---x clear-mld-groups {rpc-clear-groups}? Liu & Guo, etc Expires December 31, 2017 [Page 12] Internet-Draft IGMP & MLD Yang Model July 2017 +---w input +---w interface? -> /rt:routing/control-plane-protocols/control-plane-protocol/mld/interfaces/interface/interface-name +---w group? inet:ipv6-address +---w source? inet:ipv6-address 4. IGMP and MLD YANG Modules file "ietf-igmp-mld@2017-06-30.yang" module ietf-igmp-mld { namespace "urn:ietf:params:xml:ns:yang:ietf-igmp-mld"; // replace with IANA namespace when assigned prefix igmp-mld; import ietf-inet-types { prefix "inet"; } import ietf-yang-types { prefix "yang"; } import ietf-routing { prefix "rt"; } import ietf-interfaces { prefix "if"; } import ietf-ip { prefix ip; } organization "IETF PIM Working Group"; contact "WG Web: WG List: WG Chair: Stig Venaas Liu & Guo, etc Expires December 31, 2017 [Page 13] Internet-Draft IGMP & MLD Yang Model July 2017 WG Chair: Mike McBride Editor: Xufeng Liu Editor: Feng Guo Editor: Mahesh Sivakumar Editor: Pete McAllister Editor: Anish Peter "; description "The module defines a collection of YANG definitions common for IGMP and MLD."; revision 2017-06-30 { description "Updated for model description and errata."; reference "RFC XXXX: A YANG Data Model for IGMP and MLD"; } /* * Features */ feature global-admin-enable { description "Support global configuration to enable or disable protocol."; } feature global-interface-config { description "Support global configuration applied for all interfaces."; } feature global-max-entries { description "Support configuration of global max-entries."; } feature global-max-groups { Liu & Guo, etc Expires December 31, 2017 [Page 14] Internet-Draft IGMP & MLD Yang Model July 2017 description "Support configuration of global max-groups."; } feature intf-admin-enable { description "Support configuration of interface administrative enabling."; } feature intf-last-member-query-interval-extended { description "Support configuration of interface last member query interval different value range."; } feature intf-query-interval-extended { description "Support configuration of interface query interval different value range."; } feature intf-query-max-response-time-extended { description "Support configuration of interface query max response time different value range."; } feature intf-robustness-variable-extended { description "Support configuration of interface robustness-variable different value range."; } feature intf-immediate-leave { description "Support configuration of interface immediate-leave."; } feature intf-join-group { description "Support configuration of interface join-group."; } feature intf-max-groups { description "Support configuration of interface max-groups."; } feature intf-max-group-sources { Liu & Guo, etc Expires December 31, 2017 [Page 15] Internet-Draft IGMP & MLD Yang Model July 2017 description "Support configuration of interface max-group-sources."; } feature intf-require-router-alert { description "Support configuration of interface require-router-alert."; } feature intf-source-policy { description "Support configuration of interface source policy."; } feature intf-ssm-map { description "Support configuration of interface ssm-map."; } feature intf-static-group { description "Support configuration of interface static-group."; } feature intf-verify-source-subnet { description "Support configuration of interface verify-source-subnet."; } feature per-interface-config { description "Support per interface configuration."; } feature rpc-clear-groups { description "Support rpc's to clear groups."; } /* * Typedefs */ typedef ssm-map-ipv4-addr-type { type union { type enumeration { enum 'policy' { description "Source address is specified in SSM map policy."; } Liu & Guo, etc Expires December 31, 2017 [Page 16] Internet-Draft IGMP & MLD Yang Model July 2017 } type inet:ipv4-address; } description "Multicast source IP address type for SSM map."; } // source-ipv4-addr-type typedef ssm-map-ipv6-addr-type { type union { type enumeration { enum 'policy' { description "Source address is specified in SSM map policy."; } } type inet:ipv6-address; } description "Multicast source IP address type for SSM map."; } // source-ipv6-addr-type typedef source-ipv4-addr-type { type union { type enumeration { enum '*' { description "Any source address."; } } type inet:ipv4-address; } description "Multicast source IP address type."; } // source-ipv4-addr-type typedef source-ipv6-addr-type { type union { type enumeration { enum '*' { description "Any source address."; } } type inet:ipv6-address; } description "Multicast source IP address type."; } // source-ipv6-addr-type Liu & Guo, etc Expires December 31, 2017 [Page 17] Internet-Draft IGMP & MLD Yang Model July 2017 /* * Identities */ /* * Groupings */ grouping global-config-attributes { description "Global IGMP and MLD configuration."; leaf enable { if-feature global-admin-enable; type boolean; description "true to enable IGMP or MLD in the routing instance; false to disable IGMP or MLD in the routing instance."; } leaf max-entries { if-feature global-max-entries; type uint32; description "The maximum number of entries in IGMP or MLD."; } leaf max-groups { if-feature global-max-groups; type uint32; description "The maximum number of groups that IGMP or MLD can join."; } } // global-config-attributes grouping global-state-attributes { description "Global IGMP and MLD state attributes."; leaf entries-count { type uint32; description "The number of entries in IGMP or MLD."; } leaf groups-count { type uint32; description "The number of groups that IGMP or MLD can join."; } container statistics { description "Global statistics."; Liu & Guo, etc Expires December 31, 2017 [Page 18] Internet-Draft IGMP & MLD Yang Model July 2017 leaf discontinuity-time { type yang:date-and-time; description "The time on the most recent occasion at which any one or more of the statistic counters suffered a discontinuity. If no such discontinuities have occurred since the last re-initialization of the local management subsystem, then this node contains the time the local management subsystem re-initialized itself."; } container error { description "Statistics of errors."; uses global-statistics-error; } container received { description "Statistics of received messages."; uses global-statistics-sent-received; } container sent { description "Statistics of sent messages."; uses global-statistics-sent-received; } } // statistics } // global-state-attributes grouping global-statistics-error { description "A grouping defining statistics attributes for errors."; uses global-statistics-sent-received; leaf checksum { type yang:counter64; description "The number of checksum errors."; } leaf too-short { type yang:counter64; description "The number of messages that are too short."; } } // global-statistics-error grouping global-statistics-sent-received { description "A grouping defining statistics attributes."; leaf total { type yang:counter64; Liu & Guo, etc Expires December 31, 2017 [Page 19] Internet-Draft IGMP & MLD Yang Model July 2017 description "The number of total messages."; } leaf query { type yang:counter64; description "The number of query messages."; } leaf report { type yang:counter64; description "The number of report messages."; } leaf leave { type yang:counter64; description "The number of leave messages."; } } // global-statistics-sent-received grouping interfaces-config-attributes { description "Configuration attributes applied to the interfaces whose per interface attributes are not existing."; choice last-member-query-interval { description "Different vendors can restrict different range to the Last Member Query Interval parameter."; leaf last-member-query-interval-basic { type uint16 { range "1..65535"; } units seconds; default 1; description "Last Member Query Interval, which may be tuned to modify the leave latency of the network."; reference "RFC3376. Sec. 8.8."; } leaf last-member-query-interval-extended { if-feature intf-last-member-query-interval-extended; type uint16; units seconds; description "Last Member Query Interval, which may be tuned to modify the leave latency of the network."; reference "RFC3376. Sec. 8.8."; Liu & Guo, etc Expires December 31, 2017 [Page 20] Internet-Draft IGMP & MLD Yang Model July 2017 } } leaf max-groups-per-interface { if-feature intf-max-groups; type uint32; description "The maximum number of groups that IGMP or MLD can join."; } choice query-interval { description "Different vendors can restrict different range to the Query Interval parameter."; leaf query-interval-basic { type uint16 { range "1..31744"; } units seconds; default 125; description "The Query Interval is the interval between General Queries sent by the Querier."; reference "RFC3376. Sec. 4.1.7, 8.2, 8.14.2."; } leaf query-interval-extended { if-feature intf-query-interval-extended; type uint16; units seconds; description "The Query Interval is the interval between General Queries sent by the Querier."; reference "RFC3376. Sec. 4.1.7, 8.2, 8.14.2."; } } choice query-max-response-time { description "Different vendors can restrict different range to the Query maximum response time parameter."; leaf query-max-response-time-basic { type uint16 { range "1..65535"; } units seconds; default 10; description "Query maximum response time specifies the maximum time allowed before sending a responding report."; reference "RFC3376. Sec. 4.1.1, 8.3, 8.14.3."; Liu & Guo, etc Expires December 31, 2017 [Page 21] Internet-Draft IGMP & MLD Yang Model July 2017 } leaf query-max-response-time-extended { if-feature intf-query-max-response-time-extended; type uint16; units seconds; description "Query maximum response time specifies the maximum time allowed before sending a responding report."; reference "RFC3376. Sec. 4.1.1, 8.3, 8.14.3."; } } leaf require-router-alert { if-feature intf-require-router-alert; type boolean; default false; description "Protocol packets should contain router alert IP option."; } choice robustness-variable { description "Different vendors can restrict different range to the Robustness Variable parameter."; leaf robustness-variable-basic { type uint8 { range "2..7"; } default 2; description "Querier's Robustness Variable allows tuning for the expected packet loss on a network."; reference "RFC3376. Sec. 4.1.6, 8.1, 8.14.1."; } leaf robustness-variable-extended { if-feature intf-robustness-variable-extended; type uint8; description "Querier's Robustness Variable allows tuning for the expected packet loss on a network."; reference "RFC3376. Sec. 4.1.6, 8.1, 8.14.1."; } } } // interfaces-config-attributes grouping interface-config-attributes-igmp { description "Per interface igmp configuration for IGMP."; uses interface-config-attributes-igmp-mld; Liu & Guo, etc Expires December 31, 2017 [Page 22] Internet-Draft IGMP & MLD Yang Model July 2017 leaf version { type uint8 { range "1..3"; } description "IGMP version."; reference "RFC1112, RFC2236, RFC3376."; } leaf-list join-group { if-feature intf-join-group; type inet:ipv4-address; description "The router joins this multicast group on the interface."; } list ssm-map { if-feature intf-ssm-map; key "source-addr group-policy"; description "The policy for (*,G) mapping to (S,G)."; leaf source-addr { type ssm-map-ipv4-addr-type; description "Multicast source IP address."; } leaf group-policy { type string; description "Name of the access policy used to filter IGMP membership.A device can restrict the length and value of this name, possibly space and special characters are not allowed. "; } } list static-group { if-feature intf-static-group; key "group source-addr"; description "A static multicast route, (*,G) or (S,G)."; leaf group { type inet:ipv4-address; description "Multicast group IP address."; } leaf source-addr { type source-ipv4-addr-type; description "Multicast source IP address."; Liu & Guo, etc Expires December 31, 2017 [Page 23] Internet-Draft IGMP & MLD Yang Model July 2017 } } } // interface-config-attributes-igmp grouping interface-config-attributes-igmp-mld { description "Per interface configuration for both IGMP and MLD."; leaf enable { if-feature intf-admin-enable; type boolean; default false; description "true to enable IGMP or MLD on the interface; false to disable IGMP or MLD on the interface."; } leaf group-policy { type string; description "Name of the access policy used to filter IGMP or MLD membership.A device can restrict the length and value of this name, possibly space and special characters are not allowed."; } leaf immediate-leave { if-feature intf-immediate-leave; type empty; description "If present, IGMP or MLD perform an immediate leave upon receiving an IGMPv2 or MLDv1 leave message. If the router is IGMP-enabled or MLD-enabled, it sends an IGMP or MLD last member query with a last member query response time. However, the router does not wait for the response time before it prunes off the group."; } choice last-member-query-interval { description "Different vendors can restrict different range to the Last Member Query Interval parameter."; leaf last-member-query-interval-basic { type uint16 { range "1..65535"; } units seconds; default 1; description "Last Member Query Interval, which may be tuned to modify the leave latency of the network."; Liu & Guo, etc Expires December 31, 2017 [Page 24] Internet-Draft IGMP & MLD Yang Model July 2017 reference "RFC3376. Sec. 8.8."; } leaf last-member-query-interval-extended { if-feature intf-last-member-query-interval-extended; type uint16; units seconds; description "Last Member Query Interval, which may be tuned to modify the leave latency of the network."; reference "RFC3376. Sec. 8.8."; } } leaf max-groups { if-feature intf-max-groups; type uint32; description "The maximum number of groups that IGMP ro MLD can join."; } leaf max-group-sources { if-feature intf-max-group-sources; type uint32; description "The maximum number of group sources."; } choice query-interval { description "Different vendors can restrict different range to the Query Interval parameter."; leaf query-interval-basic { type uint16 { range "1..31744"; } units seconds; default 125; description "The Query Interval is the interval between General Queries sent by the Querier."; reference "RFC3376. Sec. 4.1.7, 8.2, 8.14.2."; } leaf query-interval-extended { if-feature intf-query-interval-extended; type uint16; units seconds; description "The Query Interval is the interval between General Queries sent by the Querier."; reference "RFC3376. Sec. 4.1.7, 8.2, 8.14.2."; } Liu & Guo, etc Expires December 31, 2017 [Page 25] Internet-Draft IGMP & MLD Yang Model July 2017 } choice query-max-response-time { description "Different vendors can restrict different range to the Query maximum response time parameter."; leaf query-max-response-time-basic { type uint16 { range "1..65535"; } units seconds; default 10; description "Query maximum response time specifies the maximum time allowed before sending a responding report."; reference "RFC3376. Sec. 4.1.1, 8.3, 8.14.3."; } leaf query-max-response-time-extended { if-feature intf-query-max-response-time-extended; type uint16; units seconds; description "Query maximum response time specifies the maximum time allowed before sending a responding report."; reference "RFC3376. Sec. 4.1.1, 8.3, 8.14.3."; } } leaf require-router-alert { if-feature intf-require-router-alert; type boolean; description "Protocol packets should contain router alert IP option."; } choice robustness-variable { description "Different vendors can restrict different range to the Robustness Variable parameter."; leaf robustness-variable-basic { type uint8 { range "2..7"; } default 2; description "Querier's Robustness Variable allows tuning for the expected packet loss on a network."; reference "RFC3376. Sec. 4.1.6, 8.1, 8.14.1."; } leaf robustness-variable-extended { Liu & Guo, etc Expires December 31, 2017 [Page 26] Internet-Draft IGMP & MLD Yang Model July 2017 if-feature intf-robustness-variable-extended; type uint8; description "Querier's Robustness Variable allows tuning for the expected packet loss on a network."; reference "RFC3376. Sec. 4.1.6, 8.1, 8.14.1."; } } leaf source-policy { if-feature intf-source-policy; type string; description "Name of the access policy used to filter sources. A device can restrict the length and value of this name, possibly space and special characters are not allowed."; } leaf verify-source-subnet { if-feature intf-verify-source-subnet; type empty; description "If present, the interface accepts packets with matching source IP subnet only."; } } // interface-config-attributes-igmp-mld grouping interface-config-attributes-mld { description "Per interface mld configuration for MLD."; uses interface-config-attributes-igmp-mld; leaf version { type uint8 { range "1..2"; } description "MLD version."; reference "RFC2710, RFC3810."; } leaf-list join-group { if-feature intf-join-group; type inet:ipv6-address; description "The router joins this multicast group on the interface."; } list ssm-map { if-feature intf-ssm-map; key "source-addr group-policy"; Liu & Guo, etc Expires December 31, 2017 [Page 27] Internet-Draft IGMP & MLD Yang Model July 2017 description "The policy for (*,G) mapping to (S,G)."; leaf source-addr { type ssm-map-ipv6-addr-type; description "Multicast source IPv6 address."; } leaf group-policy { type string; description "Name of the access policy used to filter MLD membership.A device can restrict the length and value of this name, possibly space and special characters are not allowed."; } } list static-group { if-feature intf-static-group; key "group source-addr"; description "A static multicast route, (*,G) or (S,G)."; leaf group { type inet:ipv6-address; description "Multicast group IPv6 address."; } leaf source-addr { type source-ipv6-addr-type; description "Multicast source IPv6 address."; } } } // interface-config-attributes-mld grouping interface-state-attributes-igmp { description "Per interface state attributes for IGMP."; uses interface-state-attributes-igmp-mld; leaf querier { type inet:ipv4-address; description "The querier address in the subnet"; } leaf-list joined-group { if-feature intf-join-group; type inet:ipv4-address; description Liu & Guo, etc Expires December 31, 2017 [Page 28] Internet-Draft IGMP & MLD Yang Model July 2017 "The routers that joined this multicast group."; } list group { key "address"; description "Multicast group membership information that joined on the interface."; leaf address { type inet:ipv4-address; description "Multicast group address."; } uses interface-state-group-attributes-igmp-mld; leaf-list host { type inet:ipv4-address; description "List of host addresses that joined the multicast group"; } leaf last-reporter { type inet:ipv4-address; description "The last host address which has sent the report to join the multicast group."; } list source { key "address"; description "List of multicast source information of the multicast group."; leaf address { type inet:ipv4-address; description "Multicast source address"; } uses interface-state-source-attributes-igmp-mld; leaf last-reporter { type inet:ipv4-address; description "The last host address which has sent the report to join the multicast source and group."; } } // list source } // list group } // interface-state-attributes-igmp Liu & Guo, etc Expires December 31, 2017 [Page 29] Internet-Draft IGMP & MLD Yang Model July 2017 grouping interface-state-attributes-igmp-mld { description "Per interface state attributes for both IGMP and MLD."; leaf oper-status { type enumeration { enum up { description "Ready to pass packets."; } enum down { description "The interface does not pass any packets."; } } description "interface up or down state for IGMP or MLD protocol"; } } // interface-config-attributes-igmp-mld grouping interface-state-attributes-mld { description "Per interface state attributes for MLD."; uses interface-state-attributes-igmp-mld; leaf querier { type inet:ipv6-address; description "The querier address in the subnet."; } leaf-list joined-group { if-feature intf-join-group; type inet:ipv6-address; description "The routers that joined this multicast group."; } list group { key "address"; description "Multicast group membership information that joined on the interface."; leaf address { type inet:ipv6-address; description "Multicast group address."; } Liu & Guo, etc Expires December 31, 2017 [Page 30] Internet-Draft IGMP & MLD Yang Model July 2017 uses interface-state-group-attributes-igmp-mld; leaf-list host { type inet:ipv6-address; description "List of host addresses that joined the multicast group"; } leaf last-reporter { type inet:ipv6-address; description "The last host address which has sent the report to join the multicast group."; } list source { key "address"; description "List of multicast source information of the multicast group."; leaf address { type inet:ipv6-address; description "Multicast source address"; } uses interface-state-source-attributes-igmp-mld; leaf last-reporter { type inet:ipv6-address; description "The last host address which has sent the report to join the multicast source and group."; } } // list source } // list group } // interface-state-attributes-mld grouping interface-state-group-attributes-igmp-mld { description "Per interface state attributes for both IGMP and MLD groups."; leaf expire { type uint32; units seconds; description "The time left before multicast group state expires."; } leaf filter-mode { type enumeration { enum "include" { Liu & Guo, etc Expires December 31, 2017 [Page 31] Internet-Draft IGMP & MLD Yang Model July 2017 description "In include mode, reception of packets sent to the specified multicast address is requested only from those IP source addresses listed in the source-list parameter"; } enum "exclude" { description "In exclude mode, reception of packets sent to the given multicast address is requested from all IP source addresses except those listed in the source-list parameter."; } } description "Filter mode for a multicast group, may be either include or exclude."; } leaf host-count { type uint32; description "The number of host addresses."; } leaf up-time { type uint32; units seconds; description "The elapsed time since the device created multicast group record."; } } // interface-state-group-attributes-igmp-mld grouping interface-state-source-attributes-igmp-mld { description "Per interface state attributes for both IGMP and MLD source-group records."; leaf expire { type uint32; units seconds; description "The time left before multicast source-group state expires."; } leaf up-time { type uint32; units seconds; description "The elapsed time since the device created multicast source-group record."; } Liu & Guo, etc Expires December 31, 2017 [Page 32] Internet-Draft IGMP & MLD Yang Model July 2017 } // interface-state-source-attributes-igmp-mld /* * Configuration data nodes */ augment "/rt:routing/rt:control-plane-protocols/rt:control-plane-protocol" { description "IGMP augmentation to routing control plane protocol configuration."; container igmp { description "IGMP configuration data."; container global { description "Global attributes."; uses global-config-attributes; } container interfaces { description "Containing a list of interfaces."; uses interfaces-config-attributes { if-feature global-interface-config; } leaf version { type uint8 { range "1..3"; } description "IGMP version."; reference "RFC1112, RFC2236, RFC3376."; } list interface { key "interface-name"; description "List of IGMP interfaces."; leaf interface-name { type if:interface-ref; must "/if:interfaces/if:interface[if:name = current()]/" + "ip:ipv4" { description "The interface must have IPv4 enabled."; } description "Reference to an entry in the global interface list."; Liu & Guo, etc Expires December 31, 2017 [Page 33] Internet-Draft IGMP & MLD Yang Model July 2017 } uses interface-config-attributes-igmp { if-feature per-interface-config; } } // interface } // interfaces } // igmp }//augment augment "/rt:routing/rt:control-plane-protocols/rt:control-plane-protocol" { description "MLD augmentation to routing control plane protocol configuration."; container mld { description "MLD configuration data."; container global { description "Global attributes."; uses global-config-attributes; } container interfaces { description "Containing a list of interfaces."; uses interfaces-config-attributes { if-feature global-interface-config; } leaf version { type uint8 { range "1..2"; } description "MLD version."; reference "RFC2710,RFC3810."; } list interface { key "interface-name"; description "List of MLD interfaces."; leaf interface-name { type if:interface-ref; must "/if:interfaces/if:interface[if:name = current()]/" + "ip:ipv6" { description "The interface must have IPv6 enabled."; } Liu & Guo, etc Expires December 31, 2017 [Page 34] Internet-Draft IGMP & MLD Yang Model July 2017 description "Reference to an entry in the global interface list."; } uses interface-config-attributes-mld { if-feature per-interface-config; } } // interface } // interfaces } // mld } // augment /* * Operational state data nodes */ augment "/rt:routing-state/rt:control-plane-protocols/rt:control-plane-protocol" { description "IGMP augmentation to routing control plane protocol state."; container igmp { description "IGMP operational state data."; container global { description "Global attributes."; uses global-config-attributes; uses global-state-attributes; } container interfaces { description "Containing a list of interfaces."; uses interfaces-config-attributes { if-feature global-interface-config; } list interface { key "interface-name"; description "List of IGMP interfaces."; leaf interface-name { type if:interface-ref; must "/if:interfaces/if:interface[if:name = current()]/" + "ip:ipv4" { description "The interface must have IPv4 enabled."; Liu & Guo, etc Expires December 31, 2017 [Page 35] Internet-Draft IGMP & MLD Yang Model July 2017 } description "Reference to an entry in the global interface list."; } uses interface-config-attributes-igmp { if-feature per-interface-config; } uses interface-state-attributes-igmp; } // interface } // interfaces } // igmp }//augment augment "/rt:routing-state/rt:control-plane-protocols/rt:control-plane-protocol" { description "MLD augmentation to routing control plane protocol state."; container mld { description "MLD operational state data."; container global { description "Global attributes."; uses global-config-attributes; uses global-state-attributes; } container interfaces { description "Containing a list of interfaces."; uses interfaces-config-attributes { if-feature global-interface-config; } list interface { key "interface-name"; description "List of MLD interfaces."; leaf interface-name { type if:interface-ref; must "/if:interfaces/if:interface[if:name = current()]/" + "ip:ipv6" { description "The interface must have IPv6 enabled."; } Liu & Guo, etc Expires December 31, 2017 [Page 36] Internet-Draft IGMP & MLD Yang Model July 2017 description "Reference to an entry in the global interface list."; } uses interface-config-attributes-mld { if-feature per-interface-config; } uses interface-state-attributes-mld; } // interface } // interfaces } // mld } // augment /* * RPCs */ rpc clear-igmp-groups { if-feature rpc-clear-groups; description "Clears the specified IGMP cache entries."; input { leaf interface { type leafref { path "/rt:routing/rt:control-plane-protocols" + "/rt:control-plane-protocol/" + "igmp/interfaces/interface/" + "interface-name"; } description "Name of the IGMP interface. If it is not specified, groups from all interfaces are cleared."; } leaf group { type inet:ipv4-address; description "Multicast group IPv4 address. If it is not specified, all IGMP group entries are cleared."; } leaf source { type inet:ipv4-address; description "Multicast source IPv4 address. If it is not specified, all IGMP source-group entries are cleared."; } } Liu & Guo, etc Expires December 31, 2017 [Page 37] Internet-Draft IGMP & MLD Yang Model July 2017 } // rpc clear-igmp-groups rpc clear-mld-groups { if-feature rpc-clear-groups; description "Clears the specified MLD cache entires."; input { leaf interface { type leafref { path "/rt:routing/rt:control-plane-protocols" + "/rt:control-plane-protocol/" + "mld/interfaces/interface/" + "interface-name"; } description "Name of the MLD interface. If it is not specified, groups from all interfaces are cleared."; } leaf group { type inet:ipv6-address; description "Multicast group IPv6 address. If it is not specified, all MLD group entries are cleared."; } leaf source { type inet:ipv6-address; description "Multicast source IPv6 address. If it is not specified, all MLD source-group entries are cleared."; } } } // rpc clear-mld-groups /* * Notifications */ } 5. Security Considerations The data model defined does not introduce any security implications. This document does not change any underlying security issues inherent in [RFC8022]. Liu & Guo, etc Expires December 31, 2017 [Page 38] Internet-Draft IGMP & MLD Yang Model July 2017 6. IANA Considerations RFC Ed.: In this section, replace all occurrences of 'XXXX' with the actual RFC number (and remove this note). This document registers the following namespace URIs in the IETF XML registry [RFC3688]: -------------------------------------------------------------------- URI: urn:ietf:params:xml:ns:yang:ietf-igmp-mld Registrant Contact: The IESG. XML: N/A, the requested URI is an XML namespace. -------------------------------------------------------------------- This document registers the following YANG modules in the YANG Module Names registry [RFC7950]: -------------------------------------------------------------------- name: ietf-igmp-mld namespace: urn:ietf:params:xml:ns:yang:ietf-igmp-mld prefix: igmp-mld reference: RFC XXXX -------------------------------------------------------------------- 7. References 7.1. Normative References [RFC2119] Bradner, S., "Key words for use in RFCs to Indicate Requirement Levels", BCP 14, RFC 2119, March 1997. [RFC6020] Bjorklund, M., Ed., "YANG - A Data Modeling Language for the Network Configuration Protocol (NETCONF)", RFC 6020, October 2010 Liu & Guo, etc Expires December 31, 2017 [Page 39] Internet-Draft IGMP & MLD Yang Model July 2017 [RFC6241] Enns, R., Ed., Bjorklund, M., Ed., Schoenwaelder, J., Ed., and A. Bierman, Ed., "Network Configuration Protocol (NETCONF)", RFC 6241, June 2011 [RFC7950] Bjorklund, M., Ed., "The YANG 1.1 Data Modeling Language", RFC 7950, August 2016 [RFC8022] Lhotka, L. and A. Lindem, "A YANG Data Model for Routing Management", RFC 8022, November 2016 7.2. Informative References [RFC1112] Deering, S., "Host extensions for IP multicasting", STD 5, RFC 1112, August 1989. [RFC2236] Fenner, W., "Internet Group Management Protocol, Version 2", RFC 2236, November 1997. [RFC2710] Deering, S., Fenner, W., and B. Haberman, "Multicast Listener Discovery (MLD) for IPv6", RFC 2710, October 1999. [RFC3376] Cain, B., Deering, S., Kouvelas, I., Fenner, B., and A. Thyagarajan, "Internet Group Management Protocol, Version 3", RFC 3376, October 2002. [RFC3810] Vida, R. and L. Costa, "Multicast Listener Discovery Version 2 (MLDv2) for IPv6", RFC 3810, June 2004. [RFC4541] M. Christensen, K. Kimball and F. Solensky, "Considerations for Internet Group Management Protocol (IGMP) and Multicast Listener Discovery (MLD) Snooping Switches", RFC 4541, May 2006. [RFC4605] B. Fenner, H. He, B. Haberman, and H. Sandick, "Internet Group Management Protocol (IGMP) / Multicast Listener Discovery (MLD)-Based Multicast Forwarding ("IGMP/MLD Proxying")", RFC 4605, August 2006. [RFC6087] Bierman, A., "Guidelines for Authors and Reviewers of YANG Data Model Documents", RFC 6087, January 2011 [I-D.ietf-netmod-rfc6087bis] Bierman, A., "Guidelines for Authors and Reviewers of YANG Data Model Documents", draft-ietf- netmod-rfc6087bis-12(work in progress), March 2017. Liu & Guo, etc Expires December 31, 2017 [Page 40] Internet-Draft IGMP & MLD Yang Model July 2017 8. Acknowledgments The authors would like to thank Steve Baillargeon, Hu Fangwei, Robert Kebler, Tanmoy Kundu, Liu Yisong, and Stig Venaas for their valuable contributions. Liu & Guo, etc Expires December 31, 2017 [Page 41] Internet-Draft IGMP & MLD Yang Model July 2017 Authors' Addresses Xufeng Liu Jabil 8281 Greensboro Drive, Suite 200 McLean VA 22102 USA EMail: Xufeng_Liu@jabil.com Feng Guo Huawei Huawei Bld., No.156 Beiqing Rd. Beijing 100095 China Email: guofeng@huawei.com Mahesh Sivakumar Cisco Systems, Inc. 510 McCarthy Boulevard Milpitas, California 95035 USA Email: masivaku@cisco.com Pete McAllister Metaswitch Networks 100 Church Street Enfield EN2 6BQ UK EMail: pete.mcallister@metaswitch.com Anish Peter Individual EMail: anish.ietf@gmail.com Liu & Guo, etc Expires December 31, 2017 [Page 42]