High CPU usage with DHCP snooping: Normal?

[qutienparker]

In a recent attempt to improve security somewhat I've started implementing DHCP snooping on my network. The network is a mix of 2960L and X and 9200L's and 9300L's.

However the first thing I notice is that cpu usage skyrockets and in some cases even hits 100% resulting in dropped packets.

Is this expected behaviour or the result of a potential bug?

[b.winter]

Why are you posting this question in the "Collaboration" section of the Cisco forum? What does it have to do with Collab?
I've moved your message, to the networking / switching forum?

[MHM Cisco World]

close this topic and open it again in SW and share the cpu usage before and after add dhcp snooping

MHM