[c-nsp] BGP over Etherchannel Issue

Farhan Ali Khan farhan at cyber.net.pk
Tue Oct 7 01:09:21 EDT 2008



Dear Chris 

Did u check , does the etherchannel goes down when any of the link fails ?
if yes then check the minimum link configured for the bundle set it to 1


Regards
Farhan Ali Khan

-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net
[mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of C and C Dominte
Sent: 06 October 2008 15:22
To: cisco-nsp at puck.nether.net
Subject: [c-nsp] BGP over Etherchannel Issue

Hi all,





I am having a rather unusual issue, and I have no idea on how or where to
find any info about it.



Basically, a bgp session configured over an etherchannel (2x10G ports) goes
down, if one cable is removed. This should not happen under normal
circumstances, as the physical disconnection, should not affect the
Etherchannel operation, as long as there is at least one connected port in
operation.
The IP addresses are configured over a VLAN, which is then allowed on the
etherchannel trunk.
When I removed one of the two fibers, the bgp session went down, and in the
reset log the reason was peer closed the session, on both sides.




Any help would be appreciated.



Catalin





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