Internet Engineering Task Force (IETF) D. Eastlake 3rd
Request for Comments: 7176 Huawei
Obsoletes: 6326 T. Senevirathne
Category: Standards Track Cisco
ISSN: 2070-1721 A. Ghanwani
Dell
D. Dutt
Cumulus Networks
A. Banerjee
Insieme Networks
May 2014
Transparent Interconnection of Lots of Links (TRILL) Use of IS-IS
Abstract
The IETF Transparent Interconnection of Lots of Links (TRILL)
protocol provides optimal pair-wise data frame forwarding without
configuration in multi-hop networks with arbitrary topology and link
technology; it also provides support for multipathing of both unicast
and multicast traffic. This document specifies the data formats and
code points for the IS-IS extensions to support TRILL. These data
formats and code points may also be used by technologies other than
TRILL. This document obsoletes RFC 6326.
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/rfc7176.
Eastlake, et al. Standards Track [Page 1]RFC 7176 TRILL Use of IS-IS May 2014Copyright Notice
Copyright (c) 2014 IETF Trust and the persons identified as the
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Table of Contents
1. Introduction ....................................................3
1.1. Conventions Used in This Document ..........................4
2. TLV and Sub-TLV Extensions to IS-IS for TRILL ...................4
2.1. Group Address TLV ..........................................5
2.1.1. Group MAC Address Sub-TLV ...........................5
2.1.2. Group IPv4 Address Sub-TLV ..........................7
2.1.3. Group IPv6 Address Sub-TLV ..........................8
2.1.4. Group Labeled MAC Address Sub-TLV ...................9
2.1.5. Group Labeled IPv4 Address Sub-TLV .................10
2.1.6. Group Labeled IPv6 Address Sub-TLV .................11
2.2. Multi-Topology-Aware Port Capability Sub-TLVs .............12
2.2.1. Special VLANs and Flags Sub-TLV ....................12
2.2.2. Enabled-VLANs Sub-TLV ..............................13
2.2.3. Appointed Forwarders Sub-TLV .......................14
2.2.4. Port TRILL Version Sub-TLV .........................15
2.2.5. VLANs Appointed Sub-TLV ............................17
2.3. Sub-TLVs of the Router Capability and MT-Capability TLVs ..17
2.3.1. TRILL Version Sub-TLV ..............................18
2.3.2. Nickname Sub-TLV ...................................19
2.3.3. Trees Sub-TLV ......................................20
2.3.4. Tree Identifiers Sub-TLV ...........................20
2.3.5. Trees Used Identifiers Sub-TLV .....................21
2.3.6. Interested VLANs and Spanning Tree Roots Sub-TLV ...22
2.3.7. VLAN Group Sub-TLV .................................24
2.3.8. Interested Labels and Spanning Tree Roots Sub-TLV ..25
2.3.9. RBridge Channel Protocols Sub-TLV ..................27
2.3.10. Affinity Sub-TLV ..................................29
2.3.11. Label Group Sub-TLV ...............................30
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