We had exactly the same issue and I thought it was a bug as well but it turned out to be something broadcasting and was overwhelming the CPU. I worked with TAC and here are some of the steps they had me do....
1) Issue the following commands to identify utilization issue:
- "sh proc cpu | e 0.00" <- do this every 30 seconds for a couple minutes
- "sh proc cpu history" <- you're looking at the '#' symbols over the course of the last hour and last 72 hours
- "sh log" <- check for links flapping and error messages
2) Issue the following commands to identify kinds of traffic being sent to Route Processor (CPU) for software switching instead of hardware switching:
- "show interface | inc line|size/max/drop|minute" <- look for interfaces with odd input queue behavior and large number of output drops
After identifying one or two interfaces, issue the following command to see what's waiting in the buffers to be punted to the CPU. Look for patter, specifically make note of:
We have 3 identical switches configured by someone else and would like to claim some of the Gigabit ports(G1/G2/G3/G4) for use on servers. When we try to change the wiring and configuration, we run in to connectivity issues. Attached is a des...
This is actually a pretty cool feature, i didn't even know it existed until I was looking for a solution to advertise a subnet (prefix in BGP talk), only if a certain condition existed. This is exactly what conditional advertisements does
j ai une question j ai achete un routeur cisco 887VA-k9 , je le configuré avec la configuration ci- dessous
si je le lier avec mon pc portable sur l un de ses ports directement ça marche toute est bien ( la connexion internet + m...