Cisco ME 3400 Command Reference Manual page 152

Ethernet access switch

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ip arp inspection limit

You should configure trunk ports with higher rates to reflect their aggregation. When the rate of

incoming packets exceeds the user-configured rate, the switch places the interface into an error-disabled

state. The error-disable recovery feature automatically removes the port from the error-disabled state

according to the recovery setting.

The rate of incoming ARP packets on EtherChannel ports equals the sum of the incoming rate of ARP

packets from all the channel members. Configure the rate limit for EtherChannel ports only after

examining the rate of incoming ARP packets on all the channel members.

This example shows how to limit the rate of incoming ARP requests on a port to 25 pps and to set the

interface monitoring interval to 5 consecutive seconds:

Switch(config)# interface gigabitethernet1/0/1

Switch(config-if)# ip arp inspection limit rate 25 burst interval 5

You can verify your settings by entering the show ip arp inspection interfaces interface-id privileged

EXEC command.

Related Commands

show ip arp inspection

Cisco ME 3400 Ethernet Access Switch Command Reference

Displays the trust state and the rate limit of ARP packets for the specified

interface or all interfaces.

Cisco ME 3400 Ethernet Access Switch Cisco IOS Commands

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