Transparent Interconnection of Lots of Links (TRILL): Pseudo-Nickname for Active-Active Access
RFC 7781
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Type |
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RFC - Proposed Standard
(February 2016; No errata)
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Last updated |
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2016-02-25
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Replaces |
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draft-hu-trill-pseudonode-nickname
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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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Donald Eastlake
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Shepherd write-up |
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Show
(last changed 2015-03-26)
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IESG state |
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RFC 7781 (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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Alia Atlas
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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) H. Zhai
Request for Comments: 7781 JIT
Category: Standards Track T. Senevirathne
ISSN: 2070-1721 Consultant
R. Perlman
EMC
M. Zhang
Y. Li
Huawei Technologies
February 2016
Transparent Interconnection of Lots of Links (TRILL):
Pseudo-Nickname for Active-Active Access
Abstract
The IETF TRILL (Transparent Interconnection of Lots of Links)
protocol provides support for flow-level multipathing for both
unicast and multi-destination traffic in networks with arbitrary
topology. Active-active access at the TRILL edge is the extension of
these characteristics to end stations that are multiply connected to
a TRILL campus as discussed in RFC 7379. In this document, the edge
RBridge (Routing Bridge, or TRILL switch) group providing active-
active access to such an end station is represented as a virtual
RBridge. Based on the concept of the virtual RBridge, along with its
pseudo-nickname, this document specifies a method for TRILL active-
active access by such end stations.
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/rfc7781.
Zhai, et al. Standards Track [Page 1]
RFC 7781 Pseudo-Nickname February 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.
Zhai, et al. Standards Track [Page 2]
RFC 7781 Pseudo-Nickname February 2016
Table of Contents
1. Introduction ....................................................4
1.1. Terminology and Acronyms ...................................6
2. Overview ........................................................7
3. Virtual RBridge and Its Pseudo-Nickname .........................9
4. Auto-Discovery of Member RBridges ..............................10
4.1. Discovering Member RBridge for an RBv .....................11
4.2. Selection of Pseudo-Nickname for an RBv ...................13
5. Distribution Trees and Designated Forwarder ....................14
5.1. Different Trees for Different Member RBridges .............15
5.2. Designated Forwarder for Member RBridges ..................16
5.3. Ingress Nickname Filtering ................................18
6. TRILL Traffic Processing .......................................19
6.1. Ingressing Native Frames ..................................19
6.2. Egressing TRILL Data Packets ..............................20
6.2.1. Unicast TRILL Data Packets .........................20
6.2.2. Multi-Destination TRILL Data Packets ...............21
7. MAC Information Synchronization in Edge Group ..................22
8. Member Link Failure in an RBv ..................................23
8.1. Link Protection for Unicast Frame Egressing ...............24
9. TLV Extensions for Edge RBridge Group ..........................24
9.1. PN-LAALP-Membership APPsub-TLV ............................24
9.2. PN-RBv APPsub-TLV .........................................26
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