Re: [sip-overload] comments on draft-ietf-soc-overload-rate-control-01

[Janet P Gunn <[e-mail]>]

From:   "NOEL, ERIC C (ERIC C)" <[e-mail]>
To:     Janet P Gunn/USA/CSC@CSC, "[e-mail]" 
<[e-mail]>
Date:   05/07/2012 10:01 AM
Subject:        RE: [sip-overload] comments on 
draft-ietf-soc-overload-rate-control-01



Janet,
 
Thanks for your comments. Please see below our response.
 
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
[e-mail]
 
 
These are largely editorial comments. 
...

Sec 3.4 
...
 
4th para 
Note that the target SIP request rate is a max rate that may not be 
   attained by the arrival rate at the client, and the server cannot 
   assume that it will. 
To 
Note that the target SIP request rate is an upper bound on the rate the 
client may send requests to the server.  In many cases, the client will 
send messages at a lower rate. 
> Suggested writing is different than original paragraph meaning. 
Originally that paragraph stated the server should not assume the arrival 
rate at client will exceed the server target rate. Your suggested change 
does away with the observation on the arrival rate at client and focuses 
on the arrival rate presented by the client to the server. 
Was that the intent?

[JPG] I guess I am confused.  Why would the server care what  the arrival 
rate at the client is?  Why would the server assume that the arrival rate 
at the client ( which may be distributed among many different servers) 
would, or would not, be bigger that the server target rate?



Janet