Thread: more peering stuff, whats going on.
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Old 19-02-2006, 22:48   #18
Ignition
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Re: more peering stuff, whats going on.
Quote:
Originally Posted by JonathanLH
zigzag is usually software rate limiters from my experience.
We have a 10mbit unmetered box in seattle, it's not set to 10mbit on the network card (god knows why), but is set from a cisco command on a gsr9000 series router. Due to this, a single thread download from say microsoft (also in seattle - with a 1ms ping!) runs at 10mbit on average, but zigzags nicely from about 8mbit to 12mbit.
If it were set at 10 on the network card you'd never get 10 due to the overheads. This way you average out a nice 10Mbit.

I doubt Level3 are throttling, I suspect more likely packet loss causing the stall, throttling won't make an outright stall but packet loss will.
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