BGP Logical Link Discovery Protocol (LLDP) Peer Discovery
draft-acee-idr-lldp-peer-discovery-06

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Last updated 2019-11-20
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Network Working Group                                          A. Lindem
Internet-Draft                                             Cisco Systems
Intended status: Standards Track                                K. Patel
Expires: May 24, 2020                                        Arrcus, Inc
                                                                S. Zandi
                                                                LinkedIn
                                                                 J. Haas
                                                   Juniper Networks, Inc
                                                                   X. Xu
                                                                 Alibaba
                                                       November 21, 2019

       BGP Logical Link Discovery Protocol (LLDP) Peer Discovery
                 draft-acee-idr-lldp-peer-discovery-06

Abstract

   Link Layer Discovery Protocol (LLDP) or IEEE Std 802.1AB is
   implemented in networking equipment from many vendors.  It is natural
   for IETF protocols to avail this protocol for simple discovery tasks.
   This document describes how BGP would use LLDP to discover directly
   connected and 2-hop peers when peering is based on loopback
   addresses.

Status of This Memo

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

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   This Internet-Draft will expire on May 24, 2020.

Copyright Notice

   Copyright (c) 2019 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

Lindem, et al.            Expires May 24, 2020                  [Page 1]
Internet-Draft           BGP LLDP Peer Discovery           November 2019

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Requirements Notation . . . . . . . . . . . . . . . . . .   3
       1.1.1.  Requirements Language . . . . . . . . . . . . . . . .   3
   2.  LLDP Extensions . . . . . . . . . . . . . . . . . . . . . . .   3
     2.1.  LLDP IETF Organizationally Specific TLV Format  . . . . .   3
     2.2.  BGP Config OS-TLV Format  . . . . . . . . . . . . . . . .   4
       2.2.1.  BGP Config OS-TLV - Peering Address Sub-TLV . . . . .   5
       2.2.2.  BGP Config OS-TLV - BGP Local AS Sub-TLV  . . . . . .   6
       2.2.3.  BGP Config OS-TLV - BGP Identifier Sub-TLV  . . . . .   7
       2.2.4.  BGP Config OS-TLV - Session Group-ID Sub-TLV  . . . .   8
       2.2.5.  BGP Config OS-TLV - BGP Session Capabilities Sub-TLV    9
       2.2.6.  BGP Config OS-TLV - Key Chain Sub-TLV . . . . . . . .  10
       2.2.7.  BGP Config OS-TLV - Local Address Sub-TLV . . . . . .  11
   3.  BGP LLDP Peer Discovery Operations  . . . . . . . . . . . . .  12
     3.1.  Advertising BGP Speaker . . . . . . . . . . . . . . . . .  12
     3.2.  Receiving BGP Speaker . . . . . . . . . . . . . . . . . .  12
   4.  Security Considerations . . . . . . . . . . . . . . . . . . .  13
   5.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  14
     5.1.  IANA Assigned LLDP Subtype  . . . . . . . . . . . . . . .  14
     5.2.  BGP Config LLDP OS-TLV Sub-TLVs . . . . . . . . . . . . .  14
   6.  Contributors  . . . . . . . . . . . . . . . . . . . . . . . .  15
   7.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  15
     7.1.  Normative References  . . . . . . . . . . . . . . . . . .  16
     7.2.  Informative References  . . . . . . . . . . . . . . . . .  16
   Appendix A.  Acknowledgments  . . . . . . . . . . . . . . . . . .  17
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  17

1.  Introduction

   Link Layer Discovery Protocol (LLDP) [LLDP] or IEEE Std 802.1AB is
   implemented in networking equipment from many vendors.  It is natural
   for IETF protocols to avail this protocol for simple discovery tasks.
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