arp max-learning-num

Use arp max-learning-num to set the maximum number of dynamic ARP entries that an interface can learn.

Use undo arp max-learning-num to restore the default.

Syntax

arp max-learning-num number

undo arp max-learning-num

Default

An interface can learn a maximum of 16384 dynamic ARP entries.

Views

Layer 2 Ethernet interface view

Layer 2 aggregate interface view

Layer 3 Ethernet interface view

Layer 3 Ethernet subinterface view

VLAN interface view

S-channel interface view

S-channel aggregate interface view

Predefined user roles

network-admin

Parameters

number: Specifies the maximum number of dynamic ARP entries for an interface. The value range is 0 to 16384.

Usage guidelines

An interface can dynamically learn ARP entries. To prevent an interface from holding too many ARP entries, you can set the maximum number of dynamic ARP entries that the interface can learn. When the maximum number is reached, the interface stops learning ARP entries.

When the number argument is set to 0, the interface is disabled from learning dynamic ARP entries.

Examples

# Specify VLAN-interface 40 to learn a maximum of 500 dynamic ARP entries.

<Sysname> system-view
[Sysname] interface vlan-interface 40
[Sysname-Vlan-interface40] arp max-learning-num 500

# Specify Ten-GigabitEthernet 1/0/1 to learn a maximum of 1000 dynamic ARP entries.

<Sysname> system-view
[Sysname] interface Ten-GigabitEthernet 1/0/1
[Sysname-Ten-GigabitEthernet1/0/1] arp max-learning-num 1000

# Specify Layer 2 aggregate interface bridge-aggregation 1 to learn a maximum of 1000 dynamic ARP entries.

<Sysname> system-view
[Sysname] interface bridge-aggregation 1
[Sysname-Bridge-Aggregation1] arp max-learning-num 1000