[c-nsp] 3750 stack

[Alan Buxey]

Hi,

> Interesting, Cisco told us it is generally a bad idea going much above 
> five switch stacks.  Something to do with the fact that at the rear of 
> the switch you have a token ring-esque system and 40Gbps of backplane 
> (off the top of my head).  In the early code they only had a single 
> token flying around the switches which caused horrible latency woes I 
> would imagine, but things improved when they had multiple tokens 
> rotating through the loop.

StackWisePlus is a 32G full duplex bidirectional ring (when cables all
installed properly.... this means you should still be better ff using
it rather than having 2 stacks and trying to link the 2 together using
eg expensive 10G ethernet X2's or port-channelled 1G's

alan