Internet Engineering Task Force (IETF) D. Eastlake
Request for Comments: 6326 Huawei
Category: Standards Track A. Banerjee
ISSN: 2070-1721 D. Dutt
Cisco
R. Perlman
Intel
A. Ghanwani
Brocade
July 2011
Transparent Interconnection of Lots of Links (TRILL) Use of IS-IS
Abstract
The IETF has standardized the Transparent Interconnection of Lots of
Links (TRILL) protocol, which provides transparent Layer 2 forwarding
using encapsulation with a hop count and IS-IS link state routing.
This document specifies the data formats and code points for the
IS-IS extensions to support TRILL.
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/rfc6326.
Copyright Notice
Copyright (c) 2011 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
Eastlake, et al. Standards Track [Page 1]
RFC 6326 TRILL Use of IS-IS July 2011
the Trust Legal Provisions and are provided without warranty as
described in the Simplified BSD License.
Table of Contents
1. Introduction ....................................................3
1.1. Conventions Used in This Document ..........................3
2. TLV and Sub-TLV Extensions to IS-IS for TRILL ...................3
2.1. The Group Address TLV ......................................3
2.1.1. The Group MAC Address Sub-TLV .......................4
2.2. Multi-Topology-Aware Port Capability Sub-TLVs ..............5
2.2.1. The Special VLANs and Flags Sub-TLV .................6
2.2.2. Enabled-VLANs Sub-TLV ...............................7
2.2.3. Appointed Forwarders Sub-TLV ........................8
2.3. Sub-TLVs for the Router Capability TLV .....................9
2.3.1. The TRILL Version Sub-TLV ...........................9
2.3.2. The Nickname Sub-TLV ...............................10
2.3.3. The Trees Sub-TLV ..................................11
2.3.4. The Tree Identifiers Sub-TLV .......................11
2.3.5. The Trees Used Identifiers Sub-TLV .................12
2.3.6. Interested VLANs and Spanning Tree Roots Sub-TLV ...12
2.3.7. The VLAN Group Sub-TLV .............................15
2.4. MTU Sub-TLV of the Extended Reachability TLV ..............15
2.5. TRILL Neighbor TLV ........................................16
3. The MTU PDUs ...................................................18
4. Use of Existing PDUs and TLVs ..................................19
4.1. TRILL IIH PDUs ............................................19
4.2. Area Address ..............................................19
4.3. Protocols Supported .......................................19
5. IANA Considerations ............................................20
5.1. Allocations from Existing Registries ......................20
5.2. New Sub-Registries Created ................................21
6. Security Considerations ........................................22
7. References .....................................................22
7.1. Normative References ......................................22
7.2. Informative References ....................................23
8. Acknowledgements ...............................................23
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