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New Member

BGP Dropping every 3 minutes

I have the following connectivity:

CE - CIG IPSEC tunnel which is up and i can hop across from Cig to CE.

BGP neighbor relationship betwenn CE and CIG resets every 3 minutes.  I have tried bouncing the tunnel and clearing down to the crypto etc but nothing works.  Get the following in the logs:

Help please???

5 REPLIES

BGP Dropping every 3 minutes

I could possibly be going down the wrong path here, but I see a lot of ZBFW logs. Does the address 199.189.112.134 correlate to the other side in any way?

HTH,
John

*** Please rate all useful posts ***

HTH, John *** Please rate all useful posts ***

BGP Dropping every 3 minutes

Hello,

Is it possible you haven't allowed bgp updates to flow or be initiated both ways, as by default the ZBFW inspect command is  performing stateful inspection and  maintains a state table, whereas ZBFW Pass command is classful - meaning it doesn't keep state table and is unidirectional.

res

Paul

Please don't forget to rate any posts that have been helpful.

Thanks.

Please don't forget to rate any posts that have been helpful. Thanks.
New Member

BGP Dropping every 3 minutes

Hi,

Pls allow tcp 179 port in the fw & check once

Br/Subhojit

BGP Dropping every 3 minutes

Hello Mark,

BGP session flapping every 3 minutes is usually associated with a MTU issue along the path between the CE & the CIG devices. To resolve this issue quickly I would propose the below action plan.

Action Plan:-

=============

Remove path mtu discovery under BGP on both CE & CIG devices.

***********Plz do rate this post if you found it helpful*************************


Thanks & Regards,


Vignesh R P

BGP Dropping every 3 minutes

Hello Mark,

"no bgp transport path-mtu-discovery" is the command to disable PMTU Discovery under the #router bgp mode.

***********Plz do rate this post if you found it helpful*************************


Thanks & Regards,


Vignesh R P

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