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Virtual switch interface view
VLAN interface view
Predefined user roles
network-admin
Parameters
interval interval: Specifies the sending interval in the range of 200 to 200000 milliseconds. The
default value is 2000 milliseconds.
Usage guidelines
This feature takes effect on an interface only when the interface has an IP address and the data link
layer state of the interface is up.
This feature can send gratuitous ARP requests only for a VRRP virtual IP address, or the sending
interface's primary IP address or manually configured secondary IP address. The primary IP address
can be configured manually or automatically, whereas the secondary IP address must be configured
manually.
If you change the sending interval for gratuitous ARP packets, the configuration takes effect at the
next sending interval.
The sending interval for gratuitous ARP packets might be much longer than the set interval when any
of the following conditions exist:
• This feature is enabled on multiple interfaces.
• Each interface is configured with multiple secondary IP addresses.
• A small sending interval is configured in the preceding cases.
Examples
# Enable VLAN-interface 2 to send gratuitous ARP packets every 300 milliseconds.
<Sysname> system-view
[Sysname] interface vlan-interface 2
[Sysname-Vlan-interface2] arp send-gratuitous-arp interval 300
gratuitous-arp-learning enable
Use gratuitous-arp-learning enable to enable learning of gratuitous ARP packets.
Use undo gratuitous-arp-learning enable to disable learning of gratuitous ARP packets.
Syntax
gratuitous-arp-learning enable
undo gratuitous-arp-learning enable
Default
Learning of gratuitous ARP packets is enabled.
Views
System view
Predefined user roles
network-admin
Usage guidelines
The learning of gratuitous ARP packets feature allows a device to maintain its ARP table by creating
or updating ARP entries based on received gratuitous ARP packets.
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