I am working on an issue where a high amount of broadcast data (15Mbps~) on a vlan on a single 3750 with an SVI is causing the switch's cpu to run at near 100% all day.
The users on this segment need to be routed to the internet etc, but the broadcast does not need to be.
I tried to configure Control Plane Policing on the 3750, it has the âcontrol-planeâ command to get into the control plane, but when I go to attach a âservice-policy input control-plane-policyâ
it fails. the policy-map has a âpolice 128000 8000 exceed-action dropâ etc under the class broadcast. this class-map is matching an acl permit udp any host 255.255.255.255, etc.
I also thought of using the rate-limit command on the svi, which has helped us with 3640 routers in the past, etc.
Does anyone else have any other ideas? the broadcast HAS to work as fast as possible between the physical ports in that vlan, but it should hit the svi at minimal levels for testing, etc.