Configuration guidelines

Follow these guidelines when you configure gratuitous ARP:

• You can enable periodic sending of gratuitous ARP packets in VLAN interface view or Layer 3 Ethernet port view.

• You can enable periodic sending of gratuitous ARP packets on a maximum of 1024 interfaces.

• Periodic sending of gratuitous ARP packets takes effect only when the link of the enabled interface goes up and an IP address has been assigned to the interface.

• If you change the interval for sending gratuitous ARP packets, the configuration is effective at the next sending interval.

• The frequency of sending gratuitous ARP packets might be much lower than is expected if this function is enabled on multiple interfaces, if each interface is configured with multiple secondary IP addresses, or if a small sending interval is configured in such cases.