Multicast Virtual Private Network (MVPN): Using Bidirectional P-Tunnels
RFC 7582
Document | Type |
RFC - Proposed Standard
(July 2015; No errata)
Updated by RFC 8534
|
|
---|---|---|---|
Authors | Eric Rosen , IJsbrand Wijnands , Yiqun Cai , Arjen Boers | ||
Last updated | 2015-10-14 | ||
Replaces | draft-ietf-l3vpn-mvpn-bidir | ||
Stream | IETF | ||
Formats | plain text html pdf htmlized bibtex | ||
Reviews | |||
Stream | WG state | Submitted to IESG for Publication | |
Document shepherd | Thomas Morin | ||
Shepherd write-up | Show (last changed 2015-02-18) | ||
IESG | IESG state | RFC 7582 (Proposed Standard) | |
Consensus Boilerplate | Yes | ||
Telechat date | |||
Responsible AD | Alvaro Retana | ||
Send notices to | (None) | ||
IANA | IANA review state | IANA OK - No Actions Needed | |
IANA action state | No IANA Actions |
Internet Engineering Task Force (IETF) E. Rosen Request for Comments: 7582 Juniper Networks, Inc. Updates: 6513, 6514, 6625 IJ. Wijnands Category: Standards Track Cisco Systems, Inc. ISSN: 2070-1721 Y. Cai Microsoft A. Boers July 2015 Multicast Virtual Private Network (MVPN): Using Bidirectional P-Tunnels Abstract A set of prior RFCs specify procedures for supporting multicast in BGP/MPLS IP VPNs. These procedures allow customer multicast data to travel across a service provider's backbone network through a set of multicast tunnels. The tunnels are advertised in certain BGP multicast auto-discovery routes, by means of a BGP attribute known as the "Provider Multicast Service Interface (PMSI) Tunnel" attribute. Encodings have been defined that allow the PMSI Tunnel attribute to identify bidirectional (multipoint-to-multipoint) multicast distribution trees. However, the prior RFCs do not provide all the necessary procedures for using bidirectional tunnels to support multicast VPNs. This document updates RFCs 6513, 6514, and 6625 by specifying those procedures. In particular, it specifies the procedures for assigning customer multicast flows (unidirectional or bidirectional) to specific bidirectional tunnels in the provider backbone, for advertising such assignments, and for determining which flows have been assigned to which tunnels. Status of This Memo This is an Internet Standards Track document. This document is a product of the Internet Engineering Task Force (IETF). It represents the consensus of the IETF community. It has received public review and has been approved for publication by the Internet Engineering Steering Group (IESG). Further information on Internet Standards is available in Section 2 of RFC 5741. Information about the current status of this document, any errata, and how to provide feedback on it may be obtained at http://www.rfc-editor.org/info/rfc7582. Rosen, et al. Standards Track [Page 1] RFC 7582 MVPN: Using Bidirectional P-Tunnels July 2015 Copyright Notice Copyright (c) 2015 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 (http://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. Rosen, et al. Standards Track [Page 2] RFC 7582 MVPN: Using Bidirectional P-Tunnels July 2015 Table of Contents 1. Introduction ....................................................4 1.1. Terminology ................................................4 1.2. Overview ...................................................9 1.2.1. Bidirectional P-Tunnel Technologies ................10 1.2.2. Reasons for Using Bidirectional P-Tunnels ..........11 1.2.3. Knowledge of Group-to-RP and/or Group-to-RPA Mappings ..............................12 1.2.4. PMSI Instantiation Methods .........................12 2. The All BIDIR-PIM Wildcard .....................................15 3. Using Bidirectional P-Tunnels ..................................15 3.1. Procedures Specific to the Tunneling Technology ...........15 3.1.1. BIDIR-PIM P-Tunnels ................................16 3.1.2. MP2MP LSPs .........................................17 3.2. Procedures Specific to the PMSI Instantiation Method ......17 3.2.1. Flat Partitioning ..................................17 3.2.1.1. When an S-PMSI Is a 'Match for Transmission' .............................19 3.2.1.2. When an I-PMSI Is a 'Match for Transmission' .............................20 3.2.1.3. When an S-PMSI Is a 'Match for Reception' .21 3.2.1.4. When an I-PMSI Is a 'Match for Reception' .22 3.2.2. Hierarchical Partitioning ..........................23 3.2.2.1. Advertisement of PE Distinguisher Labels ..24Show full document text