As you may know, you can have a Tracked list in Cisco routers combined with Boolean expressions. In order to negate a track, you need to add the keyword "not" after your object in the list. Example:
Router(config)#track track-number list boolean {and|or} (depending on if you need a logical AND or a logical OR)
Router(config-track)#object Tracked-object-number [not]
Showing posts with label Cisco Router. Show all posts
Showing posts with label Cisco Router. Show all posts
Wednesday, January 9, 2013
Wednesday, November 14, 2012
Cisco Router Specification regarding VPN Tunnels
Just to help not to be confused, like me... Long time ago I faced an issue regarding the limit of VPN tunnels on Cisco 3800 series router. In the specification you read :
I had a 3845 router with around 700 VPN Tunnels, but the router was not able to manage the tunnels and they were flapping non-stop! I looked long time for the source of problem until the time that I decided to reduce the number of tunnels with the batch of 20 tunnels. I got the stability when I reached a specific number of tunnels in the router.
- Up to 2500 VPN tunnels
I had a 3845 router with around 700 VPN Tunnels, but the router was not able to manage the tunnels and they were flapping non-stop! I looked long time for the source of problem until the time that I decided to reduce the number of tunnels with the batch of 20 tunnels. I got the stability when I reached a specific number of tunnels in the router.
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