A high CPU Utilization

[donglee]

HI all

we are facing core switch high CPU Utilization problem pls help me. Recenly we add one HP S5120-52P-LI which uplink to our core cisco 4506e. This is the log on my core cisco 4506E switch:

Dec 25 16:38:47: %SYS-1-CPURISINGTHRESHOLD: Threshold: Total CPU Utilization(Total/Intr): 83%/1%, Top 3 processes(Pid/Util):  52/65%, 51/5%, 104/5%

Dec 25 16:40:12: %SYS-1-CPUFALLINGTHRESHOLD: Threshold: Total CPU Utilization(Total/Intr) 20%/0%.

Dec 25 17:28:02: %C4K_EBM-4-HOSTFLAPPING: Host 00:0C:29:60:42:BF in vlan 180 is moving from port Gi2/6 to port Gi5/4

Dec 25 18:36:51: %C4K_EBM-4-HOSTFLAPPING: Host 00:0C:29:0A:40:7B in vlan 180 is moving from port Gi3/4 to port Gi2/5

Dec 25 18:37:07: %C4K_EBM-4-HOSTFLAPPING: Host 00:0C:29:0A:40:7B in vlan 180 is moving from port Gi2/5 to port Gi3/4

Dec 25 19:07:55: %C4K_EBM-4-HOSTFLAPPING: Host D4:BE:D9:AD:AA:15 in vlan 180 is moving from port Gi2/5 to port Gi5/4

Dec 25 19:07:55: %C4K_EBM-4-HOSTFLAPPING: Host D4:BE:D9:AD:AA:15 in vlan 180 is moving from port Gi5/4 to port Gi2/5

Any suggestion?