_arp_defend_rate/_ndp_defend_rate Parameter

Description

Number of unrequested address-defense ARP or NDP messages that can be generated in an hour period on any one physical network interface. The time period can be revised by configuring _arp_defend_period/_ndp_defend_period Parameter.

The _arp_defend_rate/_ndp_defend_rate work together with the _arp_defend_period/_ndp_defend_period to prevent a system with a large number of configured IP addresses from flooding the network with ARP traffic.

By default, the system will continuously broadcast an ARP announcement or NDP advertisement every five minutes for each address that already passed duplicate address detection. However, the total number of such ARP announcements or NDP advertisements from an interface is further limited to 100 messages per hour regardless of the number of configured addresses.

These parameters does not apply to normal ARP or NDP resolution nor to address defense due to detected conflicts. Rather, the parameters are implemented only on unbidden conflict detection traffic.

Default

100 messages/hour

Range

0-20,000

Dynamic?

Yes

When to Change

Never

Commitment Level

Unstable