Re: [aqm] adoption of draft-white-aqm-docsis-pie-01
Mikael Abrahamsson <swmike@swm.pp.se> Mon, 30 March 2015 07:30 UTC
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Date: Mon, 30 Mar 2015 09:30:01 +0200
From: Mikael Abrahamsson <swmike@swm.pp.se>
To: Szilveszter Nadas <Szilveszter.Nadas@ericsson.com>
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Cc: "Scheffenegger, Richard" <rs@netapp.com>, "'aqm@ietf.org'" <aqm@ietf.org>, "aqm-chairs@tools.ietf.org" <aqm-chairs@tools.ietf.org>, Dave Dolson <ddolson@sandvine.com>, Greg White <g.white@CableLabs.com>
Subject: Re: [aqm] adoption of draft-white-aqm-docsis-pie-01
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On Sun, 29 Mar 2015, Szilveszter Nadas wrote: > Hi, > > You have an interesting process to encourage mic comments. ;) > > Reviewed version: "draft-ietf-aqm-docsis-pie-00". Me too. Some suggestions and comments: Abstract: ... "They are commonly positioned at the head of the bottleneck link for traffic in the upstream direction (from the customer)," I find this sentence hard to read. I would suggest changes to the abstract along these lines (I will include _ around the changed parts) "DOCSIS cable modems provide broadband Internet access to over one hundred million users worldwide. They are commonly positioned _so that they handle the lowering speed adaptation in the upstream direction_ (from the customer) towards the Internet, and as a result, the impact of buffering and bufferbloat in the cable modem can have a significant effect on user experience. The CableLabs DOCSIS specification _(introduced in)_ 3.1 includes requirements for cable modems to support an Active Queue Management (AQM) algorithm that is intended to alleviate the impact that buffering has on latency sensitive traffic, while preserving bulk throughput performance. In addition, the CableLabs DOCSIS 3.0 specifications have also been amended to contain similar requirements." I just feel that this makes it easier for a non-expert read by changing the second sentence to not talk about "head", and clarify that later that the AQM sections were introduced in 3.1 specification. Section 1. Here it says "CableLabs'" and in abstract it says "CableLabs" (without '). Is that correct? I would recommend to add "upstream from the customer" in the second paragraph. Section 3. The list in 3 doesn't match the 3.1-3.4 headers, so my suggestion would be to get rid of the list in 3 and just keep the 3.1-3.4 headers. Conclusion: Then I read A, and that seems mostly to list changes to PIE for the DOCSIS-PIE implementation? What is the aim of this document? To describe in an IETF environment what the DOCSIS-PIE implementation does? This is not stated in the abstract or introduction. I think it would be worthwhile to put in a few lines in either place to describe exactly what the aim of the document is, and potentially, what it isn't. Perhaps bump the overview from section 1 to 2 and insert an introduction there? It's my opinion that this is a document that is valuable to publish as an informational draft in IETF-AQM. -- Mikael Abrahamsson email: swmike@swm.pp.se
- Re: [aqm] adoption of draft-white-aqm-docsis-pie-… Scheffenegger, Richard
- Re: [aqm] adoption of draft-white-aqm-docsis-pie-… Greg White
- Re: [aqm] adoption of draft-white-aqm-docsis-pie-… Fred Baker
- Re: [aqm] adoption of draft-white-aqm-docsis-pie-… Szilveszter Nadas
- Re: [aqm] adoption of draft-white-aqm-docsis-pie-… Mikael Abrahamsson
- Re: [aqm] adoption of draft-white-aqm-docsis-pie-… Greg White
- Re: [aqm] adoption of draft-white-aqm-docsis-pie-… Greg White
- Re: [aqm] adoption of draft-white-aqm-docsis-pie-… Szilveszter Nadas
- Re: [aqm] adoption of draft-white-aqm-docsis-pie-… Dave Dolson
- Re: [aqm] adoption of draft-white-aqm-docsis-pie-… Greg White
- Re: [aqm] adoption of draft-white-aqm-docsis-pie-… Rong Pan (ropan)
- Re: [aqm] adoption of draft-white-aqm-docsis-pie-… Scheffenegger, Richard