TRILL: RBridge Channel Tunnel Protocol
draft-ietf-trill-channel-tunnel-08

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Document Type Active Internet-Draft (trill WG)
Last updated 2016-03-18
Replaces draft-eastlake-trill-channel-tunnel
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INTERNET-DRAFT                                           Donald Eastlake
Updates: 7178                                                     Huawei
Intended status: Proposed Standard                        Mohammed Umair
                                                              IPinfusion
                                                               Yizhou Li
                                                                  Huawei
Expires: September 1, 2016                                March 18, 2016

                 TRILL: RBridge Channel Tunnel Protocol
                <draft-ietf-trill-channel-tunnel-08.txt>

Abstract

   The IETF TRILL (Transparent Interconnection of Lots of Links)
   protocol includes an optional mechanism (specified in RFC 7178),
   called RBridge Channel, for the transmission of typed messages
   between TRILL switches in the same campus and the transmission of
   such messages between TRILL switches and end stations on the same
   link. This document specifies two optional extensions to the RBridge
   Channel protocol: (1) a standard method to tunnel a variety of
   payload types by encapsulating them in an RBridge Channel message;
   and (2) a method to support security facilities for RBridge Channel
   messages. This document updates RFC 7178.

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 authors or the TRILL working group mailing list:
   trill@ietf.org

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D. Eastlake, M. Umair, & Y. Li                                  [Page 1]
INTERNET-DRAFT                             TRILL: RBridge Channel Tunnel

Table of Contents

      1. Introduction............................................3
      1.1  Terminology and Acronyms..............................3

      2. Channel Tunnel Packet Format............................5

      3. Channel Tunnel Payload Types............................8
      3.1 Null Payload...........................................8
      3.2 Ethertyped Payload.....................................8
      3.2.1 Tunneled RBridge Channel Message.....................9
      3.2.2 Tunneled TRILL Data Packet...........................9
      3.2.3 Tunneled TRILL IS-IS Packet.........................10
      3.3 Ethernet Frame........................................11

      4. Security, Keying, and Algorithms.......................14
      4.1 Basic Security Information Format.....................14
      4.2 Authentication and Encryption Coverage................15
      4.3 Derived Keying Material...............................17
      4.4 SType None............................................17
      4.5 RFC 5310 Based Authentication.........................17
      4.6 DTLS Pairwise Security................................18

      5. Channel Tunnel Errors..................................20
      5.1 SubERRs under ERR 6...................................20
      5.2 Secure Nested RBridge Channel Errors..................20

      6. IANA Considerations....................................21
      6.1 Channel Tunnel RBridge Channel Protocol Number........21
      6.2 RBridge Channel Error Codes Subregistry...............21

      7. Security Considerations................................22

      Normative References......................................23
      Informative References....................................24

      Appendix Z: Change History................................25

      Acknowledgements..........................................27
      Authors' Addresses........................................28

D. Eastlake, M. Umair, & Y. Li                                  [Page 2]
INTERNET-DRAFT                             TRILL: RBridge Channel Tunnel

1. Introduction

   The IETF TRILL base protocol [RFC6325] [RFC7780] has been extended
   with the RBridge Channel [RFC7178] facility to support transmission
   of typed messages (for example BFD (Bidirectional Forwarding
   Detection) [RFC7175]) between two TRILL switches (RBridges) in the
   same campus and the transmission of such messages between RBridges
   and end stations on the same link. When sent between RBridges in the
   same campus, a TRILL Data packet with a TRILL Header is used and the
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