Network Working Group B. Carpenter
Internet-Draft Univ. of Auckland
Intended status: Standards Track B. Liu, Ed.
Expires: October 6, 2016 Huawei Technologies
W. Wang
X. Gong
BUPT University
April 04, 2016

Generic Autonomic Signaling Protocol Application Program Interface (GRASP API)


This document specifies the application program interface of the Generic Autonomic Signaling Protocol (GRASP). The API is used for Autonomic Service Agent (ASA) calling the GRASP protocol module to communicate the autonomic network signalings with other ASAs.

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Table of Contents

1. Introduction

As defined in [I-D.ietf-anima-reference-model] , ASA is the atomic entities of an autonomic function; and it is instantiated on autonomic nodes. When ASAs communicate with each other, they should use the GRASP [I-D.ietf-anima-grasp].

As the following figure shows, the GRASP could contain two sub-layers. The bottom is the GRASP base protocol module, which is only responsible for sending and recieving GRASP messages. The upper layer is some extended funcitons based upon GRASP basic protocol. For example, [I-D.liu-anima-grasp-distribution] is one of the extended functions.

+----+                              +----+
|ASAs|                              |ASAs|
+----+                              +----+
   |                                   |
   | GRASP Function API                |
   |                                   |
+------------------+                   |GRASP API
| GRASP Extended   |                   |
| Function Modules |                   |
+------------------+                   |
|              GRASP Module                |

Both the GRASP base module and the extended function modules should be available to the ASAs. Thus, there needs to be two sub-set of API. However, since the extended functions could be added in a incremental manner, it is not very proper to define the function APIs in a single document. This document only defines the base GRASP API.


2.1. Design Principles

The assumption of this document is that any Autonomic Service Agent (ASA) needs to call a GRASP module that handles protocol details (security, sending and listening for GRASP messages, waiting, caching discovery results, negotiation looping, sending and receiving sychronization data, etc.) but understands nothing about individual objectives. So this is a high level abstract API for use by ASAs.

This is very preliminary. Two particular gaps exist:

2.2. API definition

3. Security Considerations


4. IANA Considerations

This does not need IANA assignment.

5. Acknowledgements

This document was produced using the xml2rfc tool [RFC2629].

6. References

6.1. Normative References

[I-D.ietf-anima-grasp] Bormann, C., Carpenter, B. and B. Liu, "A Generic Autonomic Signaling Protocol (GRASP)", Internet-Draft draft-ietf-anima-grasp-04, March 2016.
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate Requirement Levels", BCP 14, RFC 2119, DOI 10.17487/RFC2119, March 1997.
[RFC2629] Rose, M., "Writing I-Ds and RFCs using XML", RFC 2629, DOI 10.17487/RFC2629, June 1999.

6.2. Informative References

[I-D.ietf-anima-reference-model] Behringer, M., Carpenter, B., Eckert, T., Ciavaglia, L., Liu, B., Jeff, J. and J. Strassner, "A Reference Model for Autonomic Networking", Internet-Draft draft-ietf-anima-reference-model-01, March 2016.
[I-D.liu-anima-grasp-distribution] Liu, B. and S. Jiang, "Information Distribution over GRASP", Internet-Draft draft-liu-anima-grasp-distribution-01, March 2016.

Authors' Addresses

Brian Carpenter Department of Computer Science University of Auckland PB 92019 Auckland, 1142 New Zealand EMail:
Bing Liu (editor) Huawei Technologies Q14, Huawei Campus No.156 Beiqing Road Hai-Dian District, Beijing, 100095 P.R. China EMail:
Wendong Wang BUPT University Beijing University of Posts & Telecom. No.10 Xitucheng Road Hai-Dian District, Beijing 100876, P.R. China EMail:
Xiangyang Gong BUPT University Beijing University of Posts & Telecom. No.10 Xitucheng Road Hai-Dian District, Beijing 100876, P.R. China EMail: