I have a Cisco 3560G switch at the edge of my network. It has 2 connections out to our single ISP (redundant connections, 1G each, using iBGP, but all to a single source), and then 4 connections to different networks internally.
Overall things work well, but I've noticed the CPU on the switch spiking into the 30% range a bit, not sure if that means we are hitting the limits of the switch and should look at something more powerful.
I noticed that Cisco doesn't provide CPU specs of their switches, just how many packets/second they are rated for (mine is 38.7 Mpps)... I am attaching a graph of the CPU, which we are monitoring via SNMP using PRTG.
Any way I can know if this is packet related, and perhaps I need to upgrade to a higher-end switch?