Comcast Service for Non-Cap Bandwidth

Wed May 30 00:38:08 UTC 2012

Adams:

I would like to understand how this works.  I see the Comcast VOD servers for San Francisco are in Seattle, higher round trip and route mile than our servers at Soft Layer in San Jose.  We are costing Comcast less money than their own content.

Signed,
Nabil

> Date: Tue, 29 May 2012 12:52:30 -0500
> From: cmadams at hiwaay.net
> To: nanog at nanog.org
> Subject: Re: Comcast Service for Non-Cap Bandwidth
> 
> Once upon a time, Nabil Sharma <nabilsharma at hotmail.com> said:
> > I generate http test stream with DSCP code point 5 to match the Xbox service, however Comcast is rewriting the packets as CS 1, even when serving out a server at Soft Layer (paid peer).  This is why I ask for name of service Microsoft is using, it is not the regular paid peering.
> 
> It is my understanding that the Xbox On-Demand streaming is just talking
> to the regular On-Demand servers at the head-end (just like On-Demand
> over QAM works); the traffic has nothing to do with Microsoft's network,
> peering, etc.  That's why Comcast doesn't count it against any caps; it
> isn't transit traffic, it is local.
> -- 
> Chris Adams <cmadams at hiwaay.net>
> Systems and Network Administrator - HiWAAY Internet Services
> I don't speak for anybody but myself - that's enough trouble.
> 