The MPLS WG Archive[Date Prev][Date Next][Thread Prev][Thread Next] [Date Index][Thread Index][Author Index][Subject Index] [mpls] BCP0128 RFC 4928 on Avoiding Equal Cost Multipath Treatmentin MPLS Networks
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BCP 128
RFC 4928
Title: Avoiding Equal Cost Multipath Treatment
in MPLS Networks
Author: G. Swallow, S. Bryant,
L. Andersson
Status: Best Current Practice
Date: June 2007
Mailbox: stbryant@cisco.com,
swallow@cisco.com,
loa@pi.se
Pages: 8
Characters: 18376
Updates:
See-Also: BCP0128
I-D Tag: draft-ietf-mpls-ecmp-bcp-03.txt
URL: http://www.rfc-editor.org/rfc/rfc4928.txt
This document describes the Equal Cost Multipath (ECMP) behavior of
currently deployed MPLS networks. This document makes best practice
recommendations for anyone defining an application to run over an
MPLS network that wishes to avoid the reordering that can result from
transmission of different packets from the same flow over multiple
different equal cost paths. These recommendations rely on inspection
of the IP version number field in packets. Despite the heuristic
nature of the recommendations, they provide a relatively safe way
to operate MPLS networks, even if future allocations of IP version
numbers were made for some purpose. This document specifies an Internet
Best Current Practices for the Internet Community, and requests discussion
and suggestions for improvements.
This document is a product of the Multiprotocol Label Switching
Working Group of the IETF.
This document specifies an Internet Best Current Practices for the
Internet Community, and requests discussion and suggestions for
improvements. Distribution of this memo is unlimited.
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