Explicit Tracking with Wild Card Routes in Multicast VPN
draft-ietf-bess-mvpn-expl-track-13

Document Type Active Internet-Draft (bess WG)
Last updated 2018-12-07 (latest revision 2018-11-28)
Replaces draft-dolganow-bess-mvpn-expl-track
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BESS WG                                                      A. Dolganow
Internet-Draft                                               J. Kotalwar
Updates: 6514 6625 7524 7582 7900 (if                              Nokia
         approved)                                         E. Rosen, Ed.
Intended status: Standards Track                                Z. Zhang
Expires: June 1, 2019                             Juniper Networks, Inc.
                                                       November 28, 2018

        Explicit Tracking with Wild Card Routes in Multicast VPN
                   draft-ietf-bess-mvpn-expl-track-13

Abstract

   The Multicast VPN (MVPN) specifications provide procedures to allow a
   multicast ingress node to invoke "explicit tracking" for a multicast
   flow or set of flows, thus learning the egress nodes for that flow or
   set of flows.  However, the specifications are not completely clear
   about how the explicit tracking procedures work in certain scenarios.
   This document provides the necessary clarifications.  It also
   specifies a new, optimized explicit tracking procedure.  This new
   procedure allows an ingress node, by sending a single message, to
   request explicit tracking of each of a set of flows, where the set of
   flows is specified using a wildcard mechanism.  This document updates
   RFCs 6514, 6625, 7524, 7582, and 7900.

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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   This Internet-Draft will expire on June 1, 2019.

Copyright Notice

   Copyright (c) 2018 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

Dolganow, et al.          Expires June 1, 2019                  [Page 1]
Internet-Draft    MVPN: Explicit Tracking and WildCards    November 2018

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  The Explicit Tracking Flags . . . . . . . . . . . . . . . . .   5
   3.  Match for Tracking vs. Match for Reception  . . . . . . . . .   7
   4.  Ingress Node Initiation of Tracking . . . . . . . . . . . . .   9
   5.  Egress Node Response to the Match for Tracking  . . . . . . .  10
     5.1.  General Egress Node Procedures  . . . . . . . . . . . . .  11
     5.2.  Responding to the LIR-pF Flag . . . . . . . . . . . . . .  12
     5.3.  When the Egress Node is an ABR or ASBR  . . . . . . . . .  15
   6.  Ingress Node Handling of Received Leaf A-D Routes with
       LIR-pF Set  . . . . . . . . . . . . . . . . . . . . . . . . .  16
   7.  Acknowledgments . . . . . . . . . . . . . . . . . . . . . . .  17
   8.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  17
   9.  Security Considerations . . . . . . . . . . . . . . . . . . .  18
   10. References  . . . . . . . . . . . . . . . . . . . . . . . . .  19
     10.1.  Normative References . . . . . . . . . . . . . . . . . .  19
     10.2.  Informative References . . . . . . . . . . . . . . . . .  20
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  20

1.  Introduction

   The base Multicast VPN (MVPN) specifications,[RFC6513] and [RFC6514],
   define the "Selective Provider Multicast Service Interface Auto-
   Discovery route" (S-PMSI A-D route).

   Per those RFCs, the S-PMSI A-D route contains a Network Layer
   Reachability Information (NLRI) field that identifies a particular
   multicast flow.  In the terminology of those RFCs, each flow is
   denoted by (C-S,C-G), where C-S is an IP source address and C-G is an
   IP multicast address, both in the address space of a VPN customer.
   The (C-S,C-G) of the multicast flow is encoded into the NLRI field.

   An S-PMSI A-D route also carries a PMSI Tunnel attribute (PTA).
   Typically, the PTA is used to identify a tunnel through the provider
   backbone network (a "P-tunnel").
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