BIER Prefix Redistribute
draft-zwzw-bier-prefix-redistribute-06

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Last updated 2020-06-04
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BIER                                                            Z. Zhang
Internet-Draft                                           ZTE Corporation
Intended status: Standards Track                                   B. Wu
Expires: December 6, 2020                                     Individual
                                                                Z. Zhang
                                                        Juniper Networks
                                                            IJ. Wijnands
                                                     Cisco Systems, Inc.
                                                                  Y. Liu
                                                            June 4, 2020

                        BIER Prefix Redistribute
                 draft-zwzw-bier-prefix-redistribute-06

Abstract

   This document defines a BIER proxy function to interconnect different
   underlay routing protocol areas in a network.  And a new BIER proxy
   range sub-TLV is also defined to convey BIER BFR-id information
   across the routing areas.

Requirements Language

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
   document are to be interpreted as described in RFC2119.

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
   Task Force (IETF).  Note that other groups may also distribute
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at https://datatracker.ietf.org/drafts/current/.

   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."

   This Internet-Draft will expire on December 6, 2020.

Zhang, et al.           Expires December 6, 2020                [Page 1]
Internet-Draft          BIER Prefix Redistribute               June 2020

Copyright Notice

   Copyright (c) 2020 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents
   (https://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents
   carefully, as they describe your rights and restrictions with respect
   to this document.  Code Components extracted from this document must
   include Simplified BSD License text as described in Section 4.e of
   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1.  Problem statement . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Proposal  . . . . . . . . . . . . . . . . . . . . . . . . . .   5
   3.  Advertisement . . . . . . . . . . . . . . . . . . . . . . . .   6
     3.1.  BIER proxy range sub-TLV  . . . . . . . . . . . . . . . .   7
     3.2.  Proxy range sub-TLV usage . . . . . . . . . . . . . . . .   9
   4.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  10
   5.  Security Considerations . . . . . . . . . . . . . . . . . . .  10
   6.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  10
   7.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  10
     7.1.  Normative References  . . . . . . . . . . . . . . . . . .  10
     7.2.  Informative References  . . . . . . . . . . . . . . . . .  11
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  12

1.  Problem statement

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Internet-Draft          BIER Prefix Redistribute               June 2020

         +-------------------------------------------------------+
         |              +----+             +----+         PIM    |
         |         +----+ R1 +-------------+ R2 +-----+          |
         |         |    +----+             +----+     |          |
         |         |                                  |          |
         |         |     OSPF area 0 / ISIS           |          |
         |         |                                  |          |
         |         |     +----+            +----+     |          |
         |         +-----+    +------------+    +-----+          |
         |  +------------+ R3 +---+    +---+ R4 +------------+   |
         |  |            +----+   |    |   +----+            |   |
         |  |                     |    |                     |   |
         |  |     OSPF area 1     |    |    OSPF area 2      |   |
         |  |                     |    |                     |   |
         |  |  +----+     +----+  |    |   +----+    +----+  |   |
         |  +--+ Rm +-----+ Rn +--+    +---+ Rx +----+ Ry +--+   |
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