[apps-discuss] APPSDIR review of draft-ietf-ledbat-congestion-09
"Vijay K. Gurbani" <vkg@bell-labs.com> Tue, 22 May 2012 20:19 UTC
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Date: Tue, 22 May 2012 15:24:57 -0500
From: "Vijay K. Gurbani" <vkg@bell-labs.com>
Organization: Bell Laboratories, Alcatel-Lucent
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Cc: Wesley Eddy <wes@mti-systems.com>, Murari Sridharan <muraris@microsoft.com>, "apps-discuss@ietf.org" <apps-discuss@ietf.org>
Subject: [apps-discuss] APPSDIR review of draft-ietf-ledbat-congestion-09
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I have been selected as the Applications Area Directorate reviewer for this draft (for background on appsdir, please see http://trac.tools.ietf.org/area/app/trac/wiki/ApplicationsAreaDirectorate ). Please resolve these comments along with any other Last Call comments you may receive. Please wait for direction from your document shepherd or AD before posting a new version of the draft. Document: draft-ietf-ledbat-congestion-09 Title: Low Extra Delay Background Transport (LEDBAT) Reviewer: Vijay K. Gurbani Review Date: May-22-2012 IETF Last Call Date: Unknown IESG Telechat Date: May-24-2012 Summary: This draft is ready for publication as an Experimental Standard but it has some minor issues (detailed below) that should be addressed. Major issues: 0 Minor issues: 3 Major issues: 2 Minor: - S3.3: You probably need an accessor to get the timestamp; i.e.: OLD: remote_timestamp = data_packet.timestamp NEW: remote_timestamp = data_packet.timestamp() - S3.3: The text says that the receiver "...MAY send all the one-way delay samples that it gathers in one acknowledgment." (last sentence of S3.3). If that is the case, would you not need a segment identifier as well? Or perhaps you don't really care about segment identifiers and the intent is for the receiver of the acknowledgment to simply average out all the delay times in the acknowledgment. If so, you may want to state this more directly. - S5: I am curious --- is there a companion document that discusses framing and wire-format of LEDBAT messages? Or is framing left upto the sender and receiver? This presupposes that the sender and receiver share the same genetic code (i.e., a sender from vendor A will not interoperate with a receiver from vendor B). Nits: - S2.1, bullet 3: s/bottleneck link,/bottleneck link./ (i.e., end bullet with a period). - S5.2: s/and halves on loss./and halves the congestion window on loss./ Thanks, - vijay -- Vijay K. Gurbani, Bell Laboratories, Alcatel-Lucent 1960 Lucent Lane, Rm. 9C-533, Naperville, Illinois 60563 (USA) Email: vkg@{bell-labs.com,acm.org} / vijay.gurbani@alcatel-lucent.com Web: http://ect.bell-labs.com/who/vkg/
- [apps-discuss] APPSDIR review of draft-ietf-ledba… Vijay K. Gurbani