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Registry and Extensions for P-Multicast Service Interface Tunnel Attribute Flags (RFC7902) Disclosure Number: IPCOM000246768D
Original Publication Date: 2016-Jun-01
Included in the Prior Art Database: 2016-Jun-29
Document File: 14 page(s) / 14K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

E. Rosen: AUTHOR [+1]


A BGP attribute, "P-Multicast Service Interface (PMSI) Tunnel" attribute is defined in [RFC6514]. This attribute, referred to as the "PMSI Tunnel" attribute in this document, contains a one-octet "Flags" field. Only one flag is defined in that RFC, but there is now a need to define additional flags. However, that RFC did not create an IANA registry for the assignment of bits in the "Flags" field. This document creates a registry for that purpose. In addition, there may be a need to define more than eight flags. Therefore this document defines a new BGP Extended Community, "Additional PMSI Tunnel Attribute Flags", that can be used to carry additional flags for the "PMSI Tunnel" attribute. A registry is also created for this Extended Community, allowing IANA to assign flag bits from the Extended Community's six-octet value field.

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Internet Engineering Task Force (IETF)                          E. Rosen Request for Comments: 7902                        Juniper Networks, Inc. Updates: 6514                                                   T. Morin Category: Standards Track                                         Orange ISSN: 2070-1721                                                June 2016

                       Registry and Extensions for           P-Multicast Service Interface Tunnel Attribute Flags


   The BGP-based control procedures for Multicast Virtual Private    Networks (MVPNs) make use of a BGP attribute known as the    "P-Multicast Service Interface (PMSI) Tunnel" attribute.  The    attribute contains a one-octet "Flags" field.  The purpose of this    document is to establish an IANA registry for the assignment of the    bits in this field.  Since the "Flags" field contains only eight    bits, this document also defines a new BGP Extended Community,    "Additional PMSI Tunnel Attribute Flags", that can be used to carry    additional flags for the "P-Multicast Service Interface (PMSI)    Tunnel" attribute.  This document updates RFC 6514.

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 7841.

   Information about the current status of this document, any errata,    and how to provide feedback on it may be obtained at

Rosen & Morin                Standards Track                    [Page 1]
 RFC 7902               PMSI Tunnel Attribute Flags             June 2016

 Copyright Notice

   Copyright (c) 2016 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    ( 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.  Introduction  . . . . . . ....