Hi,
In this post, we are going to introduce you the setting of the ARP entries aging time.
The ARP aging time takes effect only for dynamic ARP entries. The default ARP aging time is 20 minutes. You can run the arp expire-time expire-time command in the system view or interface view to configure the aging time of dynamic ARP entries. The value range of expire-time is as follows: 60-62640 (chassis switches) and 30-62640 (box switches), in seconds.
If you run the command only in the system view, the aging time takes effect for dynamic ARP entries learned by all interfaces on the device. If you run the command both in the view of an interface and the system view, the aging time configured in the interface view takes effect for the dynamic ARP entries learned by the interface.
# Set the aging time of dynamic ARP entries to the 1800s.
<HUAWEI> system-view [HUAWEI] vlan batch 100 [HUAWEI] interface vlanif 100 [HUAWEI-Vlanif100] arp expire-time 1800
# After the configuration is complete, you can run the display current configuration | include arp command in any view to check the configured aging time of dynamic ARP entries.
<HUAWEI> display current-configuration | include arparp expire-time 1800
That's all for this post, hope it could help you a lot.
