Emulating ADSL bandwidth shaping

Chris Boyd cboyd at gizmopartners.com
Tue May 4 08:19:39 CDT 2010


On May 4, 2010, at 7:27 AM, Marshall Eubanks wrote:

> I am not sure what the point is in mixing in speed of light latency. If your "typical sites" are, say,
> Indian cricket blogs, you will typically have a high latency from the US. What does that tell
> you about your DSL or Cable system, except that it is somewhat removed from India ?

Most of the ADSL installations I've seen in SBC 13 state area had interleaving turned on, which significantly increases latency.  I suspect that's why many cable MSOs in the same territory have "cable is better for gaming" marketing campaigns running all the time.

So the latency you see on an ADSL line is dependent on how the carrier set up the DSLAM.

--Chris



More information about the NANOG mailing list