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Re: 10G switch drops traffic for a split second


From: Mikael Abrahamsson <swmike () swm pp se>
Date: Wed, 30 Nov 2016 17:43:49 +0100 (CET)

On Tue, 29 Nov 2016, TJ Trout wrote:

Is it possible to over run the buffers of a 320gbps backplane switch with only 1.5gbps traffic? I think the switch is rated for 140m PPS and I'm only pushing 100k PPS

If your switch is the typical small-buffered-switch that has become more and more common the past few years, then the entire switch might have buffer to keep packets for 0.1ms or less. So if someone says "flow control off" for 0.1ms, depending on the implementation, you might then start seeing packet drops on all ports until that device turns flow control back on.

--
Mikael Abrahamsson    email: swmike () swm pp se


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