RE: VSS dual active detection mechanisms

Travis,

What switches have you configured ePaGP with?

-ryan

-----Original Message-----
From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of Travis Niedens
Sent: Thursday, October 21, 2010 3:07 PM
To: 'Joseph L. Brunner'; 'Koen Zeilstra'; ccielab_at_groupstudy.com
Subject: RE: VSS dual active detection mechanisms

In the deployments I have done:

PaGP+ DA - I prefer this method however I really dislike the idea that a
downstream switch can tell the core what to do. Even though I have not seen it yet, there always could be a code change or add that causes a switch to have issues where one of the VSS switches ultimately shut its ports. Not good.

Fast Hello - Few things with this one. First off, you use this if your downstream switches do not support PaGP+ - say if you're connecting to UCS Fabric interconnects or switches from other vendors. Second, you will need
SXI1 or later code. Lastly, you burn a port on each switch.

Hope that helps.

Travis

Blogs and organic groups at http://www.ccie.net
Received on Thu Oct 21 2010 - 19:29:39 ART