From: Sergey Golovanov (sergey.golovanov@iementor.com)
Date: Wed Mar 07 2007 - 20:24:36 ART
I've been bugging TAC about this few times already. A 37xx router with more than 200 gre tunnels running with keepalives turned on will cause its CPU to go 100%. If you find a solution, let me know please :)
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Sergey Golovanov, CCIEx5 (R&S/Security/Voice/Service Provider/Storage)
"Please, don't ask me for my ccie #, there are reasons why I can't release it"
ieMentor Instructor and Content Developer
sergey.golovanov@iementor.com
http://www.iementor.com
> -------Original Message-------
> From: Piotr Ojczyk <pojczyk@tlen.pl>
> Subject: Tunnel keepalives
> Sent: Mar 07 '07 17:44
>
> Hello,
>
> When there are a few tunnels configured with the same time interval, the
> keepalives are sent simultaneously for all the interfaces. It causes quite
> inconvenient situation when very big number of tunnels is used - a storm of
> keepalives is then generated followed by the long idle time. Especially when
> all the responding routers are connected to a multi-access network and try
> to reply immediately causing collisions.
>
> Is there any possibility to spread tunnel keepalives to be sent in different
> time?
>
> Thanks
> Piotr
>
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