I have a 2621XM router with the following problem. It appears that the router operates at a high cpu level around 30/40 and goes to 100% most of the time. I´ve gone through the troubleshooting high cpu due to interrupts. The problem does not appear to be process related since there is no process that goes over 1%. And I have configured the profile terse parameters to see what interrupts may be hogging cpu time. I have no idea how to interpret the output. Also, made sure that ip cef was on and working according to others suggestions in and around the forum to be sure is not a packet forwarding problem or something like and it seems to be doing that ok.
The router is using 12.4-15T8 with 32mb and 256mb ram. Here is the profile terse not sure if anyone has some experience with these but I can´t figure out what is causing this cpu to be so taxed all the time.
The terse profile is included in an attachment on this post. Any help is very much appreciated.
Can you perhaps post the output of the show processes cpu sorted here? And also, is it possible for you to post the (sanitized) contents of your configuration?
In any case, it is possible that your router is simply handling too much traffic. The 2600XM is a software platform so every packet has to be routed in software even though the CEF provides an efficient way of doing that. Do you perform any monitoring on the amount of data flowing through your router?