Identifier-locator addressing for IPv6
draft-herbert-nvo3-ila-04

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INTERNET-DRAFT                                               Tom Herbert
Intended Status: Informational                                Quantonium
Expires: September 14, 2017                                Petr Lapukhov
                                                                Facebook
                                                          March 13, 2017

                 Identifier-locator addressing for IPv6
                       draft-herbert-nvo3-ila-04

Abstract

   This specification describes identifier-locator addressing (ILA) for
   IPv6. Identifier-locator addressing differentiates between location
   and identity of a network node. Part of an address expresses the
   immutable identity of the node, and another part indicates the
   location of the node which can be dynamic. Identifier-locator
   addressing can be used to efficiently implement overlay networks for
   network virtualization as well as solutions for use cases in
   mobility.

Status of this Memo

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

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Copyright and License Notice

   Copyright (c) 2017 IETF Trust and the persons identified as the
   document authors. All rights reserved.
 

Herbert                Expires September 14, 2017               [Page 1]
INTERNET DRAFT         draft-herbert-nvo3-ila-04          March 13, 2017

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Table of Contents

   1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . .  4
     1.1 Terminology  . . . . . . . . . . . . . . . . . . . . . . . .  4
   2 Architectural overview . . . . . . . . . . . . . . . . . . . . .  6
     2.1 Addressing . . . . . . . . . . . . . . . . . . . . . . . . .  6
     2.2 Network topology . . . . . . . . . . . . . . . . . . . . . .  6
     2.3 Translations and mappings  . . . . . . . . . . . . . . . . .  7
     2.4 ILA routing  . . . . . . . . . . . . . . . . . . . . . . . .  8
   3 Address formats  . . . . . . . . . . . . . . . . . . . . . . . .  9
     3.1 ILA address format . . . . . . . . . . . . . . . . . . . . .  9
     3.2 Locators . . . . . . . . . . . . . . . . . . . . . . . . . .  9
     3.3 Identifiers  . . . . . . . . . . . . . . . . . . . . . . . .  9
       3.3.1 Checksum neutral-mapping format  . . . . . . . . . . . . 10
       3.3.2 Identifier types . . . . . . . . . . . . . . . . . . . . 10
         3.3.2.1 Interface identifiers  . . . . . . . . . . . . . . . 10
         3.3.2.2 Locally unique identifiers . . . . . . . . . . . . . 11
         3.3.2.3 Virtual networking identifiers for IPv4  . . . . . . 11
         3.3.2.4 Virtual networking identifiers for IPv6 unicast  . . 12
         3.3.2.5 Virtual networking identifiers for IPv6 multicast  . 13
     3.4 Standard identifier representation addresses . . . . . . . . 14
       3.4.1 SIR for locally unique identifiers . . . . . . . . . . . 15
       3.4.2 SIR for virtual addresses  . . . . . . . . . . . . . . . 15
       3.4.3 SIR domains  . . . . . . . . . . . . . . . . . . . . . . 16
   4 Operation  . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
     4.1 Identifier to locator mapping  . . . . . . . . . . . . . . . 16
     4.2 Address translations . . . . . . . . . . . . . . . . . . . . 16
       4.2.1 SIR to ILA address translation . . . . . . . . . . . . . 16
       4.2.2 ILA to SIR address translation . . . . . . . . . . . . . 17
     4.3 Virtual networking operation . . . . . . . . . . . . . . . . 17
       4.3.1 Crossing virtual networks  . . . . . . . . . . . . . . . 18
       4.3.2 IPv4/IPv6 protocol translation . . . . . . . . . . . . . 18
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