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 :

• 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.

LMS4.2 ESC RICS0001:Internal Error,unable to process the collected data from the device

In LMS4.2, you may get the error message "ESC RICS0001:Internal Error,unable to process the collected data from the device" when your device platform is changed. For example, when you replace a router and you do the inventory! The reason is that LMS is not able to find the old index and in consequence, the inventory can't be gathered successfully.

I reported the issue to Cisco July 2012 and in November 2012 they created a development case with the bug ID CSCud15801.