Protocol Action: 'Metering and marking behaviour of PCN-nodes' to Proposed Standard
The IESG <iesg-secretary@ietf.org> Wed, 02 September 2009 14:36 UTC
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From: The IESG <iesg-secretary@ietf.org>
To: IETF-Announce <ietf-announce@ietf.org>
Subject: Protocol Action: 'Metering and marking behaviour of PCN-nodes' to Proposed Standard
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Date: Wed, 02 Sep 2009 07:36:57 -0700
Cc: pcn mailing list <pcn@ietf.org>, pcn chair <pcn-chairs@tools.ietf.org>, Internet Architecture Board <iab@iab.org>, RFC Editor <rfc-editor@rfc-editor.org>
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The IESG has approved the following document: - 'Metering and marking behaviour of PCN-nodes ' <draft-ietf-pcn-marking-behaviour-05.txt> as a Proposed Standard This document is the product of the Congestion and Pre-Congestion Notification Working Group. The IESG contact persons are Lars Eggert and Magnus Westerlund. A URL of this Internet-Draft is: http://www.ietf.org/internet-drafts/draft-ietf-pcn-marking-behaviour-05.txt Technical Summary This document specifies two packet metering and marking behaviours of PCN nodes. These metering and marking behaviours are implemented in PCN interior nodes to signal the onset of pre-congestion to PCN boundary nodes. Threshold-metering and -marking marks all PCN-packets if the PCN traffic rate is greater than a configured rate ("PCN-threshold-rate"). Excess-metering and -marking marks a proportion of PCN-packets, such that the amount marked equals the traffic rate in excess of a configured rate ("PCN-excess-rate"). The level of PCN marking allows PCN boundary nodes to determine the extent of pre-congestion on ingress-egress paths, which is used to make PCN traffic admission or termination decisions. Working Group Summary The document was subject to thorough review by the PCN working group, and strong consensus for publication was reached. Personnel The document shepherd was Steven Blake (slblake@petri-meat.com). Lars Eggert (lars.eggert@nokia.com) reviewed the document for the IESG.