RBridge: Pseudo-Nickname for Active-active Access
draft-ietf-trill-pseudonode-nickname-00

The information below is for an old version of the document
Document Type Active Internet-Draft (trill WG)
Authors Hongjun Zhai  , Tissa Senevirathne  , Radia Perlman  , Donald Eastlake  , Mingui Zhang  , Li Yizhou 
Last updated 2014-07-23
Replaces draft-hu-trill-pseudonode-nickname
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TRILL Working Group                                              H. Zhai
Internet-Draft                                                       ZTE
Intended Status: Standards Track                         T. Senevirathne
Expires: January 23, 2015                                  Cisco Systems
                                                              R. Perlman
                                                              Intel Labs
                                                         D. Eastlake 3rd
                                                                M. Zhang
                                                                   Y. Li
                                                                  Huawei
                                                           July 22, 2014

           RBridge: Pseudo-Nickname for Active-active Access 
                draft-ietf-trill-pseudonode-nickname-00

Abstract

   The IETF TRILL (TRansparent Interconnection of Lots of Links)
   protocol provides support for flow level multi-pathing 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. In this document, the edge RBridge (TRILL switch)
   group providing active-active access to such an end station can be
   represented as a Virtual RBridge. Based on the concept of Virtual
   RBridge along with its pseudo-nickname, this document facilitates the
   TRILL active-active access of such end stations.

Status of This Memo

   This Internet-Draft is submitted to IETF in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
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   Internet-Drafts are draft documents valid for a maximum of six months
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H. Zhai, et al                                                  [Page 1]
INTERNET DRAFT              Pseudo-Nickname                    July 2014

   The list of Internet-Draft Shadow Directories can be accessed at
   http://www.ietf.org/shadow.html

Copyright and License Notice

   Copyright (c) 2014 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
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   described in the Simplified BSD License.

Table of Contents

   1. Introduction  . . . . . . . . . . . . . . . . . . . . . . . . .  4
     1.1. Terminology and Acronyms  . . . . . . . . . . . . . . . . .  5
   2. Overview  . . . . . . . . . . . . . . . . . . . . . . . . . . .  6
   3. Virtual RBridge and its Pseudo-nickname . . . . . . . . . . . .  7
   4. Member RBridges Auto-Discovery  . . . . . . . . . . . . . . . .  8
     4.1. Discovering Member RBridge for an RBv . . . . . . . . . . .  9
     4.2. Selection of Pseudo-nickname for RBv  . . . . . . . . . . . 11
   5. Distribution Trees and Designated Forwarder . . . . . . . . . . 12
     5.1. Different Trees for Different Member RBridges . . . . . . . 12
     5.2. Designated Forwarder for Member RBridges  . . . . . . . . . 13
     5.3. Ingress Nickname Filtering  . . . . . . . . . . . . . . . . 15
   6. TRILL traffic Processing  . . . . . . . . . . . . . . . . . . . 16
     6.1. Native Frames Ingressing  . . . . . . . . . . . . . . . . . 16
     6.2. Egressing TRILL Data Packets  . . . . . . . . . . . . . . . 17
       6.2.1. Unicast TRILL Data Packets  . . . . . . . . . . . . . . 17
       6.2.2. Multi-Destination TRILL Data Packets  . . . . . . . . . 18
   7. MAC Information Synchronization in Edge Group . . . . . . . . . 18
   8. Member Link Failure in RBv  . . . . . . . . . . . . . . . . . . 19
     8.1. Link Protection for Unicast Frame Egressing . . . . . . . . 20
   9. TLV Extensions for Edge RBridge Group . . . . . . . . . . . . . 20
     9.1. MC-LAG Membership (LM) Sub-TLV  . . . . . . . . . . . . . . 21
     9.2. PN-RBV sub-TLV  . . . . . . . . . . . . . . . . . . . . . . 22
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