Hello,
I just noticed a few of my switches are running at 60-70% CPU, there is nothing much apart from the IGMP Snooping, could this be the cause? The ports are all on Hardware. Traffic is around 300-400Mbps.
Thank you.
Export your config with hide-sensitive option and post your output here.
Also have a look at tools>profile to see what process consumes the CPU.
And finally verify hardware offload is active on the ports
I had enabled Horizon on the switch and this was taking a toll, I removed that and the CPU went normal.
Great.
As wiki states doing this removed hardware offload which explains the CPU
Use split horizon bridging to prevent bridging loops. Set the same value for group of ports, to prevent them from sending data to ports with the same horizon value. Split horizon is a software feature that disables hardware offloading. Read more about Bridge split horizon.