TRILL (Transparent Interconnection of Lots of Links) over IP
draft-ietf-trill-over-ip-10

Document Type Active Internet-Draft (trill WG)
Last updated 2017-09-27 (latest revision 2017-05-31)
Replaces draft-mrw-trill-over-ip
Stream IETF
Intended RFC status Proposed Standard
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Stream WG state WG Document (wg milestone: Dec 2015 - Submit TRILL-over-IP... )
Revised I-D Needed - Issue raised by WGLC, Revised I-D Needed - Issue raised by AD, Doc Shepherd Follow-up Underway
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INTERNET-DRAFT                                           Margaret Cullen
Intended Status: Proposed Standard                     Painless Security
Updates: 7177, 7178                                      Donald Eastlake
                                                            Mingui Zhang
                                                           Dacheng Zhang
                                                                  Huawei
Expires: November 30, 2017                                  May 31, 2017

      TRILL (Transparent Interconnection of Lots of Links) over IP
                   <draft-ietf-trill-over-ip-10.txt>

Abstract
   The TRILL (Transparent Interconnection of Lots of Links) protocol
   supports both point-to-point and multi-access links and is designed
   so that a variety of link protocols can be used between TRILL switch
   ports. This document specifies transmission of encapsulated TRILL
   data and TRILL IS-IS over IP (v4 or v6). so as to use an IP network
   as a TRILL link in a unified TRILL campus. This document updates RFC
   7177 and updates RFC 7178.

Status of This Document

   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
   <dnsext@ietf.org>.

   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.

Margaret Cullen, et al                                          [Page 1]
INTERNET-DRAFT                                            TRILL over UDP

Table of Contents

      1. Introduction............................................4

      2. Terminology.............................................5

      3. Use Cases for TRILL over IP.............................6
      3.1 Remote Office Scenario.................................6
      3.2 IP Backbone Scenario...................................6
      3.3 Important Properties of the Scenarios..................7
      3.3.1 Security Requirements................................7
      3.3.2 Multicast Handling...................................8
      3.3.3 Neighbor Discovery...................................8

      4. TRILL Packet Formats....................................9
      4.1 General Packet Formats.................................9
      4.2 General TRILL Over IP Packet Formats..................10
      4.2.1 Without Security....................................10
      4.2.2 With Security.......................................10
      4.3 QoS Considerations....................................11
      4.4 Broadcast Links and Multicast Packets.................12
      4.5 TRILL Over IP IS-IS SubNetwork Point of Attachment....13

      5. TRILL over IP Encapsulation Formats....................14
      5.1 Encapsulation Considerations..........................14
      5.2 Encapsulation Agreement...............................15
      5.3 Broadcast Link Encapsulation Considerations...........16
      5.4 Native Encapsulation..................................17
      5.5 VXLAN Encapsulation...................................18
      5.6 TCP Enacpulstion......................................18
      5.7 Other Encapsulations..................................19

      6. Handling Multicast.....................................20

      7. Use of IPsec and IKEv2.................................21
      7.1 Keying................................................21
      7.1.1 Pairwise Keying.....................................21
      7.1.2 Group Keying........................................22
      7.2 Mandatory-to-Implement Algorithms.....................22

      8. Transport Considerations...............................23
      8.1 Congestion Considerations.............................23
      8.1.1 Within a TMCE.......................................24
      8.1.2 In Other Environments...............................24
      8.2 Recursive Ingress.....................................24
      8.3 Fat Flows.............................................25
      8.4 MTU Considerations....................................26
      8.5 Middlebox Considerations..............................27

Margaret Cullen, et al                                          [Page 2]
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