[c-nsp] 3750G vs. Nexus for a SAN
Nick Hilliard
nick at inex.ie
Fri Nov 6 16:56:49 EST 2009
On 06/11/2009 21:35, Gert Doering wrote:
> Out of curiosity: how does it cut-through if it has to multiplex multiple
> ports, as in: packets coming in on port A and B and leaving on C? As
> soon as two packets overlap (time-wise) on A and B, you can't do
> cut-through...
The switch has per-port buffers; from what i remember, quite a bit
smaller than on other products, as the unit is cut-through. You also
need these buffers when you're operating 1G ports in store-n-forward
mode. I don't know whether the packets are buffered on input or on output.
Nick
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