High slot Utilization on Cisco 7513 router.

[tanmay.devare]

Hi,

We are facing problem of high CPU utilization on particular slot of 7513 router.VIP-450 is present in that slot in which 2 PA-FE are inserted.Also,traffic across the FE links is not so high as it carries only LAN traffic.Attaching logs for your reference.Kindly advise on the same.

[carenas123]

When distributed Traffic Shaping (dTS) is configured, the VIP CPU jumps to 99% as soon as one packet enters the dTS queue.Alignment errors and spurious memory accesses are software failures that are corrected by the Cisco IOS software without the need to crash the VIP. If these errors appear frequently, it causes the operating system to make a lot of corrections which can lead to high CPU utilization.For more information refer the following

http://www.cisco.com/en/US/products/hw/modules/ps3088/products_tech_note09186a0080094345.shtml.