From: Carl Willias (mandingo2073@yahoo.com)
Date: Wed Oct 05 2005 - 16:29:21 GMT-3
Why do you think it was a routing loop? I have seen issues with a flood of LSA's causing high CPU utilization on routers causing it to drop packets, routing and otherwise.
----- Original Message ----
From: Mike O <mikeeo@msn.com>
To: alissitz@cisco.com; ccielab@groupstudy.com
Sent: Wednesday, October 05, 2005 1:59:30 PM
Subject: RE: OSPF routing loop
Yes we redistbute OSPF into BGP for iBGP.
We also use the command "timers throttle spf 400 400 4000" and I think it
was trying to flood out LSA's while the link was flapping and caused a loop
in the Area
>From: "Andrew Lissitz (alissitz)" <alissitz@cisco.com>
>Reply-To: "Andrew Lissitz (alissitz)" <alissitz@cisco.com>
>To: "Mike O" <mikeeo@msn.com>, <ccielab@groupstudy.com>
>Subject: RE: OSPF routing loop
>Date: Wed, 5 Oct 2005 14:34:22 -0400
>
>Mike, are you all performing any redistribution?
>
>
>-----Original Message-----
>From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
>Mike O
>Sent: Wednesday, October 05, 2005 12:09 PM
>To: ccielab@groupstudy.com
>Subject: OSPF routing loop
>
>Can a rapidly flapping interface cause a routing loop with OSPF?
>yesterday we had an interface bounce every 90 seconds and caused a
>routing loop within the network until we shut it down. Shouldn't the
>hold-down timers prevent this?
>
>
>Thanks,
>
>Mike
>
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