High Cpu on 3750 12S-S

[mortezasadeghi]

Hello
Recently, on one of our switches, the amount of CPU consumption has increased to 90%.
After executing the command show process CPU sorted, I realized that Process RARP had allocated 60% to itself.
Can anyone guide me on what this process is and how I can solve my problem?

CPU utilization for five seconds: 78%/27%; one minute: 66%; five minutes: 65%
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
243 268603081 262452919 1023 23.64% 23.83% 24.48% 0 RARP Input

[Georg Pauwen]

Hello,

on a side note, I think I remember reverse ARP (RARP) from way back (could be the 1990s) in combination with diskless workstations. 

What if you disable proxy arp globally on the switch ?

3750(config)#ip arp proxy disable

[mortezasadeghi]

Hi Georg

I disabled it.