Enabling Dynamic Arp Entry Check; Configuring Arp Quick Update - HP 3600 v2 Series Configuration Manual

Step
1. Enter system view.
2. Set the age timer for dynamic
ARP entries.

Enabling dynamic ARP entry check

The dynamic ARP entry check function controls whether the device supports dynamic ARP entries with
multicast MAC addresses.
When dynamic ARP entry check is enabled, the device cannot learn dynamic ARP entries containing
multicast MAC addresses.
When dynamic ARP entry check is disabled, the device can learn dynamic ARP entries containing
multicast MAC addresses.
To enable dynamic ARP entry check:
Step
1. Enter system view.
2. Enable dynamic ARP entry
check.

Configuring ARP quick update

HP recommends you enable ARP quick update in WLAN networks only.
As shown in
between its MAC address and output interface on the switch. If the switch does not update its ARP table
immediately after the output interface changes, it might fail to communicate with the laptop.
Figure 3 ARP quick update application scenario
With ARP quick update enabled, the switch updates the corresponding ARP entry immediately after the
change of the mapping between a MAC address and an output interface to ensure nonstop data
forwarding.
Command
system-view
arp check enable
Figure 3, the laptop frequently roams between AP 1 and AP 2. This affects the mapping
Command
system-view
arp timer aging aging-time
5
Remarks
N/A
Optional.
20 minutes by default.
Remarks
N/A
Optional.
Enabled by default.