Say i have this 3750 switch inside my company. Somehow, the connection to the switch is slow. The only way to access to the switch is using console.
Inside the console mode, I could not type in any words because the log messages appear faster than my typing.
The only way to stop the log messages is to type in "no logging console" during the period when the switches is re-boot and before the log message actually come back.
However, this is only temporary. When i re-able the logging console back, the flood ARP messages actually come back.
The configuration of the switch in global mode:
ip dhcp snooping vlan xxx- yyy
no ip dhcp snooping information option
ip dhcp snooping
ip arp inspection vlan xxx-yyy
ip arp inspection validate src-mac dst-mac
The configuration of the switch in interface mode:
ip verify source
ip dhcp snooping limit rate 15
Does anyone have any ways to find and solve the root cause of it? Could the root cause be DHCP? Could it be one of the bugs in 3750 switches?
However, i don't think the root cause is DHCP flooding as the error messages only show Invalid ARP request for all the interfaces.