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Re: [sip-overload] draft-noel-soc-overload-rate-control-02

Salvatore Loreto <salvatore.loreto@ericsson.com> Mon, 09 January 2012 17:43 UTC

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Date: Mon, 9 Jan 2012 18:28:05 +0100
From: Salvatore Loreto <salvatore.loreto@ericsson.com>
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Subject: Re: [sip-overload] draft-noel-soc-overload-rate-control-02
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Hi Noel,

thanks for the new 02 version.

after having read it, I have some questions/comments

- last sentence of Section 3.3

    Support of rate-based control MUST be indicated by clients and
    servers by setting oc-algo to "rate".


however based on overload-control-06

     the "oc-algo" list MUST include "loss" and MAY also include other algorithm names


so I would change that sentence in something like

     Support of rate-based control MUST be indicated by clients 
including in the "oc-algo"
     list the "rate" value. A server supporting and willing to use the 
rate control algorithm
     MUST pare the "oc-algo" list dow to include only the "rate" value.



- in Section 4. Example the answer

             SIP/2.0 100 Trying
             Via: SIP/2.0/TLS p1.example.net;
             branch=z9hG4bK2d4790.1;received=192.0.2.111;
             oc-algo="rate";oc-validity=0;
             oc-seq=1282321615.781

the Via header should also include the "oc" parameter, it should be


             SIP/2.0 100 Trying
             Via: SIP/2.0/TLS p1.example.net;
             branch=z9hG4bK2d4790.1;received=192.0.2.111;
             oc;oc-algo="rate";oc-validity=0;
             oc-seq=1282321615.781


- the draft should also register in the IANA registry the value "rate" 
for the "oc-algo" list.


best regards
Salvatore

-- 
Salvatore Loreto
www.sloreto.com



On 12/15/11 5:23 PM, NOEL, ERIC C (ERIC C) wrote:
> Folks,
>
> Please make a note we have updated draft-noel-soc-overload-rate-control and posted the latest version at
>
> http://datatracker.ietf.org/doc/draft-noel-soc-overload-rate-control/
>
> Comments and/or suggestions are always appreciated.
>
> Thanks!
>
> Eric Noel
> AT&T Labs, Inc.
> Rethink Possible
>
> Network Design and Performance Analysis
> 200 South Laurel Avenue, D5-3D19
> Middletown, NJ 07748
> P: 732.420.4174
> ecnoel@att.com
> _______________________________________________
> sip-overload mailing list
> sip-overload@ietf.org
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