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On Thu, Jul 7, 2016 at 4:57 PM, Gert Doering <[email protected]> wrote:
>
> Since these things are not flow based, there is no "current" traffic -
> every new packet gets an individual decision, so when you turn the
> switch, the next packet gets switched to the new rule, and all previous
> packets are already gone.
>
It's not flow based, but if changing the hashing algorithm also withdraws
and (re)assigns the hash result buckets on the channel member ports, as it
reprograms the ASIC, that can cause packet loss. Years ago I tested the
hash bucket reassignment on a 3750E and I saw a handful of packets dropped
at 1gbps speeds. I was using a Smartbits, but I don't recall the
tested/fixed packet sizes that I used.
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