I work as a Senior Network Engineer at a metro network, and unfortunately we have a bunch of WS-X4640-CSFP-E cards in 4506E chassies with CSFP optics hence 4:1 overbooking, and to add to the horrible problem its actually on distribution level so we have zero control of the situation with overbooking on these cards, and since its a Layer 2 network and L2-garbage traffic flows in "big" L2-areas is problematic.
I tried to find information on queues or if there is any way to see fabric utilization on the Cisco 4506E chassie (sup7L, 7LE, 8 etc). Is there any way on this platform to actuallty see whats going on in the utilization part of this equipment?
No its not my design and it was a horror to find out, but it became my problem to deal with.
Thanks for any suggestions.
Have you checked out Troubleshooting Cisco Catalyst 4500 Series Switches - BRKCRS-3142 from Cisco Live!? If not, you can access it at www.ciscolive.com. It has some really good troubleshooting info in it. There's also BRKARC-3445 which shows how the 4500E is designed from a hardware perspective.
There's no CLI command to show backplane utilization like on cat6k.
Interface input overruns would be a symptom of linecard oversubscription. Also look for overruns on the "show platform software interface x/y stub statistics" command. This will show stats for stub ASIC.