TRILL Working Group Donald Eastlake
INTERNET-DRAFT Mingui Zhang
Intended status: Proposed Standard Huawei
Updates: 6325 Puneet Agarwal
Broadcom
Radia Perlman
Intel Labs
Dinesh Dutt
Cumulus Networks
Expires: November 16, 2013 May 17, 2013
TRILL (Transparent Interconnection of Lots of Links):
Fine-Grained Labeling
<draft-ietf-trill-fine-labeling-07.txt>
Abstract
The IETF has standardized TRILL (Transparent Interconnection of Lots
of Links), a protocol for least cost transparent frame routing in
multi-hop networks with arbitrary topologies and link technologies,
using link-state routing and a hop count. The TRILL base protocol
standard supports labeling of TRILL data with up to 4K IDs. However,
there are applications that require a larger number of labels
providing configurable isolation of data. This document updates RFC
6325 by specifying optional extensions to the TRILL base protocol to
safely accomplish this. These extensions, called fine grained
labeling, are primarily intended for use in large Data Centers, those
with >4K users requiring configurable data isolation from each other.
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
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other groups may also distribute working documents as Internet-
Drafts.
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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."
D. Eastlake, et al [Page 1]
INTERNET-DRAFT TRILL: Fine-Grained Labeling
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D. Eastlake, et al [Page 2]
INTERNET-DRAFT TRILL: Fine-Grained Labeling
Table of Contents
1. Introduction............................................4
1.1 Terminology............................................5
1.2 Contributors...........................................5
2. Fine-Grained Labeling...................................6
2.1 Goals..................................................6
2.2 Base Protocol TRILL Data Labeling......................7
2.3 Fine-Grained Labeling (FGL)............................8
2.4 Reasons for VL and FGL Co-existence....................9
3. VL versus FGL Label Differences........................10
4. FGL Processing.........................................11
4.1 Ingress Processing....................................11
4.1.1 Multi-Destination FGL Ingress.......................11
4.2 Transit Processing....................................12
4.2.1 Unicast Transit Processing..........................12
4.2.2 Multi-Destination Transit Processing................12
4.3 Egress Processing.....................................13
4.4 Appointed Forwarders and the DRB......................14
4.5 Distribution Tree Construction........................14
4.6 Address Learning......................................15
4.7 ESADI Extension.......................................15
5. FGL TRILL Interaction with VL TRILL....................16
5.1 FGL and VL Mixed Campus...............................16
5.2 FGL and VL Mixed Links................................18
5.3 Summary of FGL-safe Requirements......................18
6. IS-IS Extensions.......................................20
7. Comparison to Goals....................................21
8. Allocation Considerations..............................22
8.1 IEEE Allocation Considerations........................22
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