A new Request for Comments is now available in online RFC libraries.
RFC 4023
Title: Encapsulating MPLS in IP or Generic Routing
Encapsulation (GRE)
Author(s): T. Worster, Y. Rekhter, E. Rosen, Ed.
Status: Standards Track
Date: March 2005
Mailbox: tom.worster@motorola.com, yakov@juniper.net,
erosen@cisco.com
Pages: 14
Characters: 31696
Updates/Obsoletes/SeeAlso: None
I-D Tag: draft-ietf-mpls-in-ip-or-gre-08.txt
URL: ftp://ftp.rfc-editor.org/in-notes/rfc4023.txt
Various applications of MPLS make use of label stacks with multiple
entries. In some cases, it is possible to replace the top label of
the stack with an IP-based encapsulation, thereby enabling the
application to run over networks that do not have MPLS enabled in
their core routers. This document specifies two IP-based
encapsulations: MPLS-in-IP and MPLS-in-GRE (Generic Routing
Encapsulation). Each of these is applicable in some circumstances.
This document is a product of the Multiprotocol Label Switching
Working Group of the IETF.
This is now a Proposed Standard Protocol.
This document specifies an Internet standards track protocol for
the Internet community, and requests discussion and suggestions
for improvements. Please refer to the current edition of the
"Internet Official Protocol Standards" (STD 1) for the
standardization state and status of this protocol. Distribution
of this memo is unlimited.
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