Spanning Tree Protocol (STP) Application of the Inter-Chassis Communication Protocol (ICCP)
RFC 7727
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Type |
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RFC - Proposed Standard
(January 2016; No errata)
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Last updated |
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2016-01-22
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Replaces |
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draft-zhang-pwe3-iccp-stp
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IETF
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plain text
pdf
html
bibtex
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WG state
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Submitted to IESG for Publication
Dec 2014
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Document shepherd |
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Andrew Malis
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Shepherd write-up |
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Show
(last changed 2015-02-02)
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IESG state |
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RFC 7727 (Proposed Standard)
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Consensus Boilerplate |
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Yes
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Telechat date |
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Responsible AD |
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Deborah Brungard
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Send notices to |
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(None)
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| IANA |
IANA review state |
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Version Changed - Review Needed
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IANA action state |
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RFC-Ed-Ack
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Internet Engineering Task Force (IETF) M. Zhang
Request for Comments: 7727 H. Wen
Category: Standards Track Huawei
ISSN: 2070-1721 J. Hu
China Telecom
January 2016
Spanning Tree Protocol (STP) Application
of the Inter-Chassis Communication Protocol (ICCP)
Abstract
The Inter-Chassis Communication Protocol (ICCP) supports an inter-
chassis redundancy mechanism that is used to support high network
availability.
In this document, Provider Edge (PE) devices in a Redundancy Group
(RG) running ICCP are used to offer multihomed connectivity to
Spanning Tree Protocol (STP) networks to improve availability of the
STP networks. The ICCP TLVs and usage for the ICCP STP application
are defined.
Status of This Memo
This is an Internet Standards Track document.
This document is a product of the Internet Engineering Task Force
(IETF). It represents the consensus of the IETF community. It has
received public review and has been approved for publication by the
Internet Engineering Steering Group (IESG). Further information on
Internet Standards is available in Section 2 of RFC 5741.
Information about the current status of this document, any errata,
and how to provide feedback on it may be obtained at
http://www.rfc-editor.org/info/rfc7727.
Zhang, et al. Standards Track [Page 1]
RFC 7727 STP Application of ICCP January 2016
Copyright Notice
Copyright (c) 2016 IETF Trust and the persons identified as the
document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents
(http://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents
carefully, as they describe your rights and restrictions with respect
to this document. Code Components extracted from this document must
include Simplified BSD License text as described in Section 4.e of
the Trust Legal Provisions and are provided without warranty as
described in the Simplified BSD License.
Zhang, et al. Standards Track [Page 2]
RFC 7727 STP Application of ICCP January 2016
Table of Contents
1. Introduction ....................................................4
1.1. Conventions Used in This Document ..........................4
1.2. Terminology ................................................4
2. Use Case ........................................................5
3. Spanning Tree Protocol Application TLVs .........................6
3.1. STP Connect TLV ............................................6
3.2. STP Disconnect TLV .........................................7
3.2.1. STP Disconnect Cause Sub-TLV ........................8
3.3. STP Configuration TLVs .....................................8
3.3.1. STP System Config ...................................9
3.3.2. STP Region Name ....................................10
3.3.3. STP Revision Level .................................10
3.3.4. STP Instance Priority ..............................11
3.3.5. STP Configuration Digest ...........................12
3.4. STP State TLVs ............................................12
3.4.1. STP Topology Changed Instances .....................12
3.4.2. STP CIST Root Time Parameters ......................14
3.4.3. STP MSTI Root Time Parameter .......................15
3.5. STP Synchronization Request TLV ...........................16
3.6. STP Synchronization Data TLV ..............................17
4. Operations .....................................................18
4.1. Common AC Procedures ......................................18
4.1.1. Remote PE Node Failure or Isolation ................19
4.1.2. Local PE Isolation .................................19
4.2. ICCP STP Application Procedures ...........................19
4.2.1. Initial Setup ......................................19
4.2.2. Configuration Synchronization ......................20
4.2.3. State Synchronization ..............................21
4.2.4. Failure and Recovery ...............................22
5. Security Considerations ........................................22
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