[c-nsp] port channel numbering schemes

[Chuck Church]

We kind of grouped ours:

Small range dedicated to uplinks    Maybe 1 through 5
Small range dedicated to cross links (VSS or VPC)  Maybe 6 through 9
Large range dedicated to downlinks  -  Majority are here, 10 up to the max.

Works good for a normal 3 layer campus design.  Since they're only locally
significant, we reuse them.  So on any given access layer switch, we know
its uplink is a certain number assuming just one.  I suppose you could break
up the downlinks to correspond to a floor number in a building maybe.  10 -
19 first floor, etc.  Whatever you design, plan for growth.

Chuck

-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net
[mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Mark Tinka
Sent: Thursday, March 08, 2012 6:33 AM
To: cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] port channel numbering schemes

On Wednesday, March 07, 2012 10:49:50 PM -Hammer- wrote:

> +1
> 
> We don't have a formal port channel naming schema.

We just go serially.

Cisco's start at "1", Juniper's start at "0", so documentation is useful,
although interface descriptions on both sides of the link help a lot too.

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 :-).

Mark.