IPv4 and IPv6 Infrastructure Addresses in BGP Updates for Multicast VPN
RFC 6515
| Document | Type |
RFC - Proposed Standard
(February 2012; No errata)
Updates RFC 6514
|
|
|---|---|---|---|
| Last updated | 2015-10-14 | ||
| Replaces | draft-rosen-l3vpn-mvpn-infra-addrs | ||
| Stream | IETF | ||
| Formats | plain text pdf html bibtex | ||
| Stream | WG state | Submitted to IESG for Publication | |
| Document shepherd | Ben Niven-Jenkins | ||
| IESG | IESG state | RFC 6515 (Proposed Standard) | |
| Consensus Boilerplate | Unknown | ||
| Telechat date | |||
| Responsible AD | Stewart Bryant | ||
| IESG note | Ben Niven-Jenkins (ben@niven-jenkins.co.uk) is the document shepherd. | ||
| Send notices to | (None) | ||
Internet Engineering Task Force (IETF) R. Aggarwal
Request for Comments: 6515 Juniper Networks, Inc.
Updates: 6514 E. Rosen
Category: Standard Track Cisco Systems, Inc.
ISSN: 2070-1721 February 2012
IPv4 and IPv6 Infrastructure Addresses in
BGP Updates for Multicast VPN
Abstract
To provide Multicast VPN (MVPN) service, Provider Edge routers
originate BGP Update messages that carry Multicast-VPN ("MCAST-VPN")
BGP routes; they also originate unicast VPN routes that carry MVPN-
specific attributes. These routes encode addresses from the
customer's address space, as well as addresses from the provider's
address space. These two address spaces are independent, and the
address family (IPv4 or IPv6) of the two spaces may or may not be the
same. These routes always contain an "address family" field that
specifies whether the customer addresses are IPv4 addresses or
whether they are IPv6 addresses. However, there is no field that
explicitly specifies the address family of the provider addresses.
To ensure interoperability, this document specifies that provider
IPv4 addresses are always encoded in these update messages as 4-octet
addresses, and that the distinction between IPv4 and IPv6 is signaled
solely by the length of the address field. Specific cases are
explained in detail. 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 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/rfc6515.
Aggarwal & Rosen Standards Track [Page 1]
RFC 6515 MVPN Infrastructure Addresses February 2012
Copyright Notice
Copyright (c) 2012 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.
Table of Contents
1. Introduction ....................................................2
1.1. IPv4 and IPv6 Addresses in MCAST-VPN Routes ................2
1.2. Specification of Requirements ..............................4
1.3. Acronyms Used in This Document .............................4
2. PE Addresses in MCAST-VPN Routes ................................4
3. VRF Route Import Extended Community .............................5
4. PMSI Tunnel Attributes in I-PMSI A-D Routes .....................6
4.1. Relationship to AFI Value ..................................6
4.2. Relationship to Next Hop Address Family ....................6
5. IANA Considerations .............................................7
6. Security Considerations .........................................7
7. Acknowledgments .................................................7
8. Normative References ............................................7
9. Informative References ..........................................7
1. Introduction
1.1. IPv4 and IPv6 Addresses in MCAST-VPN Routes
[MVPN-BGP] defines a new set of BGP route types that are used by
service providers (SPs) to provide Multicast Virtual Private Network
service to their customers. These routes have a newly defined BGP
NLRI, the "MCAST-VPN" NLRI. The MCAST-VPN NLRI is carried in the
NLRI field of the MP_REACH_NLRI/MP_UNREACH_NLRI attributes defined in
[BGP-MP]. The SAFI field of the MP_REACH_NLRI/MP_UNREACH_NLRI
attribute is used to identify the NLRI as being an MCAST-VPN NLRI.
Aggarwal & Rosen Standards Track [Page 2]
RFC 6515 MVPN Infrastructure Addresses February 2012
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