[c-nsp] port channel numbering schemes

Mark Tinka mtinka at globaltransit.net
Fri Mar 9 00:09:27 EST 2012


On Friday, March 09, 2012 06:52:03 AM Alan Buxey wrote:

> 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.

What happens when you introduce a new vendor that starts 
numbering bundled interfaces with "0" :-)?

Or when a new BU in Cisco decide to do something different 
with their bundle links that is quite different from the BU 
whose systems you're currently using :-)?

Of course, maybe corner cases for most folk, but then again, 
I realize that one can't possibly conceieve every possible 
eventuality. Only time and joy/pain will truly determine 
your thoughts on the matter.

Cheers,

Mark.
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