Link State Over Ethernet
draft-ymbk-lsvr-lsoe-01

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Last updated 2018-07-02 (latest revision 2018-03-14)
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Network Working Group                                            R. Bush
Internet-Draft                                              Arrcus & IIJ
Intended status: Standards Track                                K. Patel
Expires: January 3, 2019                                          Arrcus
                                                            July 2, 2018

                        Link State Over Ethernet
                        draft-ymbk-lsvr-lsoe-01

Abstract

   Used in a Massive Data Center (MDC), BGP-LS and BGP-SPF need link
   neighbor discovery, liveness, and addressability data.  Link State
   Over Ethernet protocols provide link discovery, exchange AFI/SAFIs,
   and discover addresses over raw Ethernet.  These data are pushed
   directly to BGP-LS/SPF, obviating the need for centralized controller
   architectures.  This protocol is more widely applicable, and has been
   designed to support a wide range of routing and similar protocols
   which need link discovery and characterisation.

Requirements Language

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" are to
   be interpreted as described in [RFC2119] only when they appear in all
   upper case.  They may also appear in lower or mixed case as English
   words, without normative meaning.

Status of This Memo

   This Internet-Draft is submitted 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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   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on January 3, 2019.

Bush & Patel             Expires January 3, 2019                [Page 1]
Internet-Draft          Link State Over Ethernet               July 2018

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  Background  . . . . . . . . . . . . . . . . . . . . . . . . .   4
   4.  Top Level Overview  . . . . . . . . . . . . . . . . . . . . .   4
   5.  Ethernet to Ethernet Protocols  . . . . . . . . . . . . . . .   5
     5.1.  Inter-Link Ether Protocol Overview  . . . . . . . . . . .   6
     5.2.  PDUs and Frames . . . . . . . . . . . . . . . . . . . . .   7
       5.2.1.  Frame TLV . . . . . . . . . . . . . . . . . . . . . .   7
       5.2.2.  Link Hello / KeepAlive  . . . . . . . . . . . . . . .  10
       5.2.3.  Capability Exchange . . . . . . . . . . . . . . . . .  10
       5.2.4.  Timer Negotiation . . . . . . . . . . . . . . . . . .  11
     5.3.  The AFI/SAFI Exchanges  . . . . . . . . . . . . . . . . .  11
       5.3.1.  AFI/SAFI Capability Exchange  . . . . . . . . . . . .  12
       5.3.2.  The AFI/SAFI PDU Skeleton . . . . . . . . . . . . . .  12
       5.3.3.  AFI/SAFI ACK  . . . . . . . . . . . . . . . . . . . .  13
       5.3.4.  Add/Drop/Prim . . . . . . . . . . . . . . . . . . . .  13
       5.3.5.  IPv4 Announce / Withdraw  . . . . . . . . . . . . . .  13
       5.3.6.  IPv6 Announce / Withdraw  . . . . . . . . . . . . . .  14
       5.3.7.  MPLS Label List . . . . . . . . . . . . . . . . . . .  14
       5.3.8.  MPLS IPv4 Announce / Withdraw . . . . . . . . . . . .  15
       5.3.9.  MPLS IPv6 Announce / Withdraw . . . . . . . . . . . .  15
   6.  Layer 2.5 and 3 Liveness  . . . . . . . . . . . . . . . . . .  16
   7.  The North/South Protocol  . . . . . . . . . . . . . . . . . .  16
     7.1.  Use BGP-LS as Much as Possible  . . . . . . . . . . . . .  17
     7.2.  Extensions to BGP-LS  . . . . . . . . . . . . . . . . . .  17
   8.  Security Considerations . . . . . . . . . . . . . . . . . . .  17
   9.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  18
   10. IEEE Considerations . . . . . . . . . . . . . . . . . . . . .  18
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