Internet Engineering Task Force (IETF) K. Kumaki, Ed.
Request for Comments: 6882 KDDI Corporation
Category: Experimental T. Murai
ISSN: 2070-1721 Furukawa Network Solution Corp.
D. Cheng
Huawei Technologies
S. Matsushima
Softbank Telecom
P. Jiang
KDDI Corporation
March 2013
Support for Resource Reservation Protocol Traffic Engineering (RSVP-TE)
in Layer 3 Virtual Private Networks (L3VPNs)
Abstract
IP Virtual Private Networks (VPNs) provide connectivity between sites
across an IP/MPLS backbone. These VPNs can be operated using
BGP/MPLS, and a single Provider Edge (PE) node may provide access to
multiple customer sites belonging to different VPNs.
The VPNs may support a number of customer services, including RSVP
and Resource Reservation Protocol Traffic Engineering (RSVP-TE)
traffic. This document describes how to support RSVP-TE between
customer sites when a single PE supports multiple VPNs and labels are
not used to identify VPNs between PEs.
Status of This Memo
This document is not an Internet Standards Track specification; it is
published for examination, experimental implementation, and
evaluation.
This document defines an Experimental Protocol for the Internet
community. 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). Not
all documents approved by the IESG are a candidate for any level of
Internet Standard; see 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/rfc6882.
Kumaki Experimental [Page 1]RFC 6882 Support for RSVP-TE in L3VPNs March 2013Copyright Notice
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Table of Contents
1. Introduction ....................................................3
1.1. Conventions ................................................3
2. Motivation ......................................................4
2.1. Network Example ............................................4
3. Protocol Extensions and Procedures ..............................5
3.1. Object Definitions .........................................5
3.1.1. LSP_TUNNEL_VPN-IPv4 and LSP_TUNNEL_VPN-IPv6
SESSION Object ......................................6
3.1.2. LSP_TUNNEL_VPN-IPv4 and LSP_TUNNEL_VPN-IPv6
SENDER_TEMPLATE .....................................7
3.1.3. LSP_TUNNEL_VPN-IPv4 and LSP_TUNNEL_VPN-IPv6
FILTER_SPEC Objects .................................9
3.1.4. VPN-IPv4 and VPN-IPv6 RSVP_HOP Objects ..............9
3.2. Handling the Messages ......................................9
3.2.1. Path Message Processing at the Ingress PE ...........9
3.2.2. Path Message Processing at the Egress PE ...........10
3.2.3. Resv Processing at the Egress PE ...................11
3.2.4. Resv Processing at the Ingress PE ..................11
3.2.5. Other RSVP Messages ................................12
4. Management Considerations ......................................12
4.1. Impact on Network Operation ...............................12
5. Security Considerations ........................................13
6. References .....................................................13
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