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Signaling MPLS in IP or MPLS in GRE Encapsulation Capability
draft-raggarwa-ppvpn-mpls-ip-gre-sig-00

Document Type Expired Internet-Draft (individual)
Expired & archived
Authors Rahul Aggarwal , Robert Raszuk
Last updated 2002-12-02
RFC stream (None)
Intended RFC status (None)
Formats
Stream Stream state (No stream defined)
Consensus boilerplate Unknown
RFC Editor Note (None)
IESG IESG state Expired
Telechat date (None)
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:

Abstract

This document proposes a lightweight mechanism for signaling a PE router's capability to encapsulate MPLS using dynamic GRE and/or IP. This is applicable when a MPLS packet is tunnelled using a dynamic GRE and/or IP encapsulation [MPLS-IP-GRE] between PE routers. For instance the MPLS packet may be a 2547 based MPLS VPN packet [2547bis] or a layer 2 packet transported using MPLS [MARTINI]. Adding such a mechanism has several benefits. It helps in blackhole avoidance and eases transitioning from MPLS tunneling based Layer 3/Layer 2 VPNs to GRE/IP tunneling based Layer 3/Layer 2 VPNs (and vice versa). Such a mechanism is needed where a network may be using MPLS and GRE (or IP) for tunneling, at the same time, in 2547 based or Layer 2 VPNs. It can help in encapsulation selection when multiple tunneling technologies are supported. It can also be used to enhance the security of the network backbone.

Authors

Rahul Aggarwal
Robert Raszuk

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)