Carrying Geo Coordinates Information In IS-IS
draft-shen-isis-geo-coordinates-02

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Last updated 2016-10-28
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Networking Working Group                                    N. Shen, Ed.
Internet-Draft                                                   E. Chen
Intended status: Standards Track                               A. Lindem
Expires: May 1, 2017                                       Cisco Systems
                                                        October 28, 2016

             Carrying Geo Coordinates Information In IS-IS
                   draft-shen-isis-geo-coordinates-02

Abstract

   This document defines a new IS-IS TLV which carries the Geo
   Coordinates information of the system.  The Geo Coordinates
   information can be used by IS-IS routing or by any applications.

Status of This Memo

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   This Internet-Draft will expire on May 1, 2017.

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   Copyright (c) 2016 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

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Shen, et al.               Expires May 1, 2017                  [Page 1]
Internet-Draft             IS-IS Geo Location               October 2016

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Requirements Language . . . . . . . . . . . . . . . . . .   3
   2.  Packet Encoding . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  Operations  . . . . . . . . . . . . . . . . . . . . . . . . .   5
   4.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   5
   5.  Security Considerations . . . . . . . . . . . . . . . . . . .   5
   6.  Privacy Considerations  . . . . . . . . . . . . . . . . . . .   6
   7.  Acknowledgments . . . . . . . . . . . . . . . . . . . . . . .   6
   8.  Document Change Log . . . . . . . . . . . . . . . . . . . . .   6
     8.1.  Changes to draft-shen-isis-geo-coordinates-02.txt . . . .   6
     8.2.  Changes to draft-shen-isis-geo-coordinates-01.txt . . . .   6
     8.3.  Changes to draft-shen-isis-geo-coordinates-00.txt . . . .   7
   9.  References  . . . . . . . . . . . . . . . . . . . . . . . . .   7
     9.1.  Normative References  . . . . . . . . . . . . . . . . . .   7
     9.2.  Informative References  . . . . . . . . . . . . . . . . .   8
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .   8

1.  Introduction

   The IS-IS routing protocol defined by [ISO10589] has been widely
   deployed in various networks.  The Geo Coordinates information can be
   useful, particularly within the wide area networks for numerous
   applications.  Similar to the Dynamic Hostname defined in [RFC5301],
   the Geo Coordinates can also be used for network management purposes.

   In the case of BGP speakers setting the outbound "MED" value in route
   advertisement to neighbors, a local policy can be defined to evaluate
   the physical location or physical region of the BGP nexthops.

   In the case of IGP point-to-multiple operations
   [I-D.lamparter-isis-p2mp], [RFC6845], the local system configuration
   can be greatly simplified if the outbound metric to remote neighbors
   can be generated automatically based on this Geo Location of the IGP
   neighbors.

   In the application where IS-IS neighbors are on the same "sub-net"
   but over the WAN network, this Geo Location information may be used
   for equal-cost or unequal-cost load sharing on the local system.
   This enables location based operation on anycast IP prefixes and DMZ
   gateways across the WAN environment.

   For the traffic matrix using the Geo Coordinates within the routing
   domain, instead of a collection of IP nexthops which might be
   translated into locations, this enables automatic region to region
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