[e2e] MSS and cwnd increase

Joe Touch touch at ISI.EDU
Mon Jul 3 09:10:20 PDT 2006

Salman Abdul Baset wrote:
> We want to understand the TCP behavior when it carries cbr(voice) traffic.
> You might be aware that Skype is also sending voice over TCP in certain
> scenarios.
> Ofcourse, I am not going to suggest that it is a good idea to
> do that; rather, we are trying to understand various circumstances
> (packet loss, delay) under which a Skype like application can possibly
> send voice traffic over TCP without incurring too much delay and jitter.
> NAT and firewall restrictions are examples of settings where an
> application may want to send voice over TCP. Again, the purpose is to
> understand the effects and this does not imply that we are recommending this
> practice.

Sure. It might be useful to compare different implementations of TCP,
since those variations may be substantial as well, FWIW.

> regards,
> Salman
> On Sat, 1 Jul 2006, Joe Touch wrote:
>> Salman Abdul Baset wrote:
>>> I am wondering how the Linux 2.6 updates its congestion window when a CBR
>>> stream (packet size << MSS) is sent over TCP.
>> The better question is why are you sending CBR over TCP?
>> Joe

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