The MPLS WG Archive[Date Prev][Date Next][Thread Prev][Thread Next] [Date Index][Thread Index][Author Index][Subject Index] I-D:Using ECN to Signal Congestion Within an MPLS Domain
Hi, We have submitted an I-D: "Using ECN to Signal Congestion Within an MPLS Domain. It can be found at http://www.ietf.org/internet-drafts/draft-shayman-mpls-ecn-00.txt The abstract is given below. We would welcome feedback. --Mark Shayman and Rob Jaeger =========================================================================== Abstract: We propose the addition of Explicit Congestion Notification (ECN) together with congestion signaling back to the ingress in order to provide notification to the ingress label switching router (LSR) if congestion is experienced along a label switched path (LSP). This information could be used by the ingress LSR to mitigate congestion by employing dynamic traffic engineering techniques such as shifting flows to alternate paths. While extending ECN to enable its use for congestion control by the ingress LSR, the proposal retains (with modification) the capability to signal ECN end-to-end as proposed in an earlier IETF draft authored by others. The current proposal incorporates ECN into MPLS in a manner that is coordinated with the use of ECN in IP, is backwards compatible, and provides MPLS with a means of alleviating congestion of flows traversing MPLS tunnels. **************************************************************************** Prof. Mark Shayman email: shayman@eng.umd.edu Dept. Electrical & Computer Eng. phone: 301-405-3667 University of Maryland fax: 301-314-9281 College Park, MD 20742 |
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