[c-nsp] me3600X-CX 15.2(4)S2 GigE port-channel to ASR9k - isis blind

Adam Vitkovsky adam.vitkovsky at swan.sk
Thu Apr 25 10:07:25 EDT 2013

Aah yes your right I totally forgot about that.



From: Pete Lumbis [mailto:alumbis at gmail.com] 
Sent: Thursday, April 25, 2013 3:48 PM
To: Adam Vitkovsky
Cc: cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] me3600X-CX 15.2(4)S2 GigE port-channel to ASR9k - isis


With regards to the IIH padding, disabling padding only disables the padding
after a neighbor is discovered. You need to tack on the "always" keyword to
disable all padding. This may be hidden as it was only recently exposed (but
it's been there for a long time).


On Thu, Apr 25, 2013 at 6:01 AM, Adam Vitkovsky <adam.vitkovsky at swan.sk>

Hi folks,
I got unidirectional link for CLNS on a routed port-channel between
me3600x-cx and ASR9k. There's only one GigE in the bundle on both ends.
ASR9k sees IIHs in and out however on CX I do not see IIHs from ASR9k.
Also I have noticed that CX pads the IIH to the full MTU even though the
interface is configured as p2p and I have hello padding disabled for p2p

I have the same setup towards me3600x with no issues (well BFD is not
Everything runs smooth on physical interfaces, CX also disables IIH padding

CX is 15.2(4)S2
X is 15.3(1)S

I guess I have to try with 15.2(4)S3 on CX


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