router on a stick and high cpu utilization

[syedraheel]

Hi,

Well I have a 1811 router connected to a L2 distribution switch via 100 Mbps 802.1q trunk. 3 vlans are trunking on this link 100,200,300.

Now If a user in VLAN 100 copies a file from a server in VLAN 200 it chokes the 100Mbps trunk link as routing in performed by the 1811 and the cpu utlization goes upto 60%. I want to prevent it going past 20-25%. Any suggestions?

Best Regards,

Raheel

[Latchum Naidu]

Hi Raheel,

Please verify which process is taking more CPU, is it IP input process.
please post the sh proc cpu sorted 5 min when you observed high cpu utilization.

Please rate the helpfull posts.
Regards,
Naidu.