I'm facing the following problem and before I contact Cisco TAC, I want to drop a line here.
I've got a C3550-IPBASE-M running IOS Version 12.2(25)SEE2. It's got two L3 VLAN interfaces. All Interfaces are placed in on. I've got one static route and 1 ACL's with 5 rule.
Basically, the setup is a border router connected to our internetlink. Traffic is about 40Mbps sustained, 100Mbps peak.
I've got a second 3750 connected to the same ISP. It's doing the same. Both 3750 use HSRP for redundancy.
Now, CPU usage shoots up to 90-99%.
I'm not using IPv6
No Logging is enabled
No individual process is using more than 1% of processor.
I am using the no ip access list command. But CPU usage is same.
System mtu is 1500
No IPSEC/GRE tunnel interface.
Using ip cef.
Anyone please help about that matter.