Provisioning, Auto-Discovery, and Signaling in Layer 2 Virtual Private Networks (L2VPNs)
RFC 6074
|
| Document |
Type |
|
RFC - Proposed Standard
(January 2011; No errata)
|
|
Last updated |
|
2015-10-14
|
|
Stream |
|
IETF
|
|
Formats |
|
plain text
pdf
html
bibtex
|
| Stream |
WG state
|
|
(None)
|
|
Document shepherd |
|
No shepherd assigned
|
| IESG |
IESG state |
|
RFC 6074 (Proposed Standard)
|
|
Consensus Boilerplate |
|
Unknown
|
|
Telechat date |
|
|
|
Responsible AD |
|
Mark Townsley
|
|
Send notices to |
|
Shane.Amante@Level3.com, vach.kompella@alcatel.com
|
Internet Engineering Task Force (IETF) E. Rosen
Request for Comments: 6074 B. Davie
Category: Standards Track Cisco Systems, Inc.
ISSN: 2070-1721 V. Radoaca
Alcatel-Lucent
W. Luo
January 2011
Provisioning, Auto-Discovery, and Signaling
in Layer 2 Virtual Private Networks (L2VPNs)
Abstract
Provider Provisioned Layer 2 Virtual Private Networks (L2VPNs) may
have different "provisioning models", i.e., models for what
information needs to be configured in what entities. Once
configured, the provisioning information is distributed by a
"discovery process". When the discovery process is complete, a
signaling protocol is automatically invoked to set up the mesh of
pseudowires (PWs) that form the (virtual) backbone of the L2VPN.
This document specifies a number of L2VPN provisioning models, and
further specifies the semantic structure of the endpoint identifiers
required by each model. It discusses the distribution of these
identifiers by the discovery process, especially when discovery is
based on the Border Gateway Protocol (BGP). It then specifies how
the endpoint identifiers are carried in the two signaling protocols
that are used to set up PWs, the Label Distribution Protocol (LDP),
and the Layer 2 Tunneling Protocol version 3 (L2TPv3).
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/rfc6074.
Rosen, et al. Standards Track [Page 1]
RFC 6074 L2VPN Signaling January 2011
Copyright Notice
Copyright (c) 2011 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.
This document may contain material from IETF Documents or IETF
Contributions published or made publicly available before November
10, 2008. The person(s) controlling the copyright in some of this
material may not have granted the IETF Trust the right to allow
modifications of such material outside the IETF Standards Process.
Without obtaining an adequate license from the person(s) controlling
the copyright in such materials, this document may not be modified
outside the IETF Standards Process, and derivative works of it may
not be created outside the IETF Standards Process, except to format
it for publication as an RFC or to translate it into languages other
than English.
Rosen, et al. Standards Track [Page 2]
RFC 6074 L2VPN Signaling January 2011
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 4
2. Signaling Protocol Framework . . . . . . . . . . . . . . . . . 5
2.1. Endpoint Identification . . . . . . . . . . . . . . . . . 5
2.2. Creating a Single Bidirectional Pseudowire . . . . . . . . 7
2.3. Attachment Identifiers and Forwarders . . . . . . . . . . 7
3. Applications . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.1. Individual Point-to-Point Pseudowires . . . . . . . . . . 9
3.1.1. Provisioning Models . . . . . . . . . . . . . . . . . 9
3.1.1.1. Double-Sided Provisioning . . . . . . . . . . . . 9
3.1.1.2. Single-Sided Provisioning with Discovery . . . . . 9
3.1.2. Signaling . . . . . . . . . . . . . . . . . . . . . . 10
3.2. Virtual Private LAN Service . . . . . . . . . . . . . . . 11
Show full document text