TRILL Working Group Donald Eastlake
INTERNET-DRAFT Huawei
Intended status: Proposed Standard Vishwas Manral
HP Networking
Li Yizhou
Sam Aldrin
Huawei
Dave Ward
Cisco
Expires: January 12, 2013 July 13, 2012
TRILL: RBridge Channel Support
<draft-ietf-trill-rbridge-channel-08.txt>
Abstract
This document specifies a general channel mechanism for sending
messages, such as BFD (Bidirectional Forwarding Detection) messages,
between RBridges (Routing Bridges) and between RBridges and end
stations in an RBridge campus through extensions to the TRILL
(TRansparent Interconnection of Lots of Links) protocol.
Status of This Memo
This Internet-Draft is submitted to IETF in full conformance with the
provisions of BCP 78 and BCP 79.
Distribution of this document is unlimited. Comments should be sent
to the TRILL working group mailing list.
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."
The list of current Internet-Drafts can be accessed at
http://www.ietf.org/1id-abstracts.html. The list of Internet-Draft
Shadow Directories can be accessed at
http://www.ietf.org/shadow.html.
D. Eastlake, et al [Page 1]
INTERNET-DRAFT TRILL: RBridge Channel
Table of Contents
1. Introduction............................................3
1.1 RBridge Channel Requirements...........................3
1.2 Relation to the MPLS Generic Channel...................4
1.3 Terminology............................................4
2. Inter-RBridge Channel Messages..........................5
2.1 The RBridge Channel Message Inner Frame................6
2.1.1 RBridge Channel Header...............................6
2.1.1 Inner Ethernet Header................................8
2.1.3 Inner.VLAN Tag.......................................8
2.2 The TRILL Header for RBridge Channel Messages..........9
2.3 Ethernet Link Header and Trailer......................10
2.4 Special Transmission and Rate Considerations..........11
3. Processing RBridge Channel TRILL Data Messages.........12
3.1 Processing the RBridge Channel Header.................12
3.2 RBridge Channel Errors................................13
4. Native RBridge Channel Frames..........................15
5. Indicating Support for RBridge Channel Protocols.......17
6. Congestion Considerations..............................18
7. Allocation Considerations..............................19
7.1 IANA Considerations...................................19
7.2 IEEE Registration Authority Considerations............20
8. Security Considerations................................21
9. References.............................................22
9.1 Normative References..................................22
9.2 Informative References................................23
Appendix: Change History..................................24
Acknowledgments...........................................27
D. Eastlake, et al [Page 2]
INTERNET-DRAFT TRILL: RBridge Channel
1. Introduction
RBridge campuses provide transparent least-cost forwarding using the
TRILL (TRansparent Interconnection of Lots of Links) protocol that
builds on IS-IS (Intermediate System to Intermediate System) routing
[IS-IS] [RFC1195] [RFC6326bis]. Devices that implement TRILL are
called RBridges (Routing Bridges) or TRILL Switches. However, the
TRILL base protocol standard [RFC6325] provides only for TRILL Data
messages and TRILL IS-IS messages.
This document specifies a general channel mechanism for the
datatracker.ietf.org