A Proposal to Incorporate ECN in MPLS

Document Type Expired Internet-Draft (mpls WG)
Authors K. Ramakrishnan  , Bruce Davie  , Sally Floyd
Last updated 1999-07-01
Stream Internet Engineering Task Force (IETF)
Expired & archived
pdf htmlized (tools) htmlized bibtex
Stream WG state WG Document
Document shepherd No shepherd assigned
IESG IESG state Expired
Consensus Boilerplate Unknown
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


We propose the addition of ECN to MPLS switching. ECN enables end- end congestion control without necessarily depending on packet loss as the sole indicator of congestion. The proposal suggests having a single bit in the MPLS header to indicate ECN, and simple signaling at the time of setting up the LSP (Label Switched Path) for indication of ECN capability. This allows for incorporation of ECN in MPLS in a coordinated manner with IP and also in a backwards compatible fashion.


K. Ramakrishnan (kkrama@research.att.com)
Bruce Davie (bsd@cisco.com)
Sally Floyd (floyd@icir.org)

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