[c-nsp] port channel numbering schemes

[Alan Buxey]

Hi,

> > We try not to match interface numbers to VLAN ID's. That
> > works out alright when you're starting out, but as the
> > network grows, many face-palm and hair-pulling moments :-).
> 
> Agreed. "Clever" numbering schemes can just be misleading when they 
> don't "line up".

another 'agreed' - however, we do try to use standard numbers for particular
types of port-channel - ie doing something like ensuring the po1 on
an aggregator switch is ALWAYS the link up to the core (and not a port-channel
to a stack of access switches or a workstation) - this simplifies a lot
of monitoring and sanity checking of configs/status of links etc.

alan