Configuring The Maximum Number Of Dynamic Arp Entries For An Interface; Setting The Aging Timer For Dynamic Arp Entries; Enabling Dynamic Arp Entry Check - HP 10500 Series Configuration Manual

Configuring the maximum number of dynamic ARP
entries for an interface
An interface can dynamically learn ARP entries, so it may hold too many ARP entries. To solve this
problem, you can set the maximum number of dynamic ARP entries that an interface can learn. When the
maximum number is reached, the interface stops learning ARP entries.
A Layer 2 interface can learn an ARP entry only when both its maximum number and the VLAN
interface's maximum number are not reached.
To set the maximum number of dynamic ARP entries that an interface can learn:
Step
Enter system view.
1.
2. Enter interface view.
3. Set the maximum number of dynamic
ARP entries that the interface can
learn.

Setting the aging timer for dynamic ARP entries

Each dynamic ARP entry in the ARP table has a limited lifetime, called aging timer. The aging timer of a
dynamic ARP entry is reset each time the dynamic ARP entry is updated. Dynamic ARP entries that are not
updated before their aging timers expire are deleted from the ARP table.
To set the aging timer for dynamic ARP entries:
Step
1. Enter system view.
2. Set the aging 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.
Command
system-view
interface interface-type
interface-number
arp max-learning-num
number
Command
system-view
arp timer aging aging-time
4
Remarks
N/A
N/A
Optional.
By default, a Layer 2 interface does
not limit the number of dynamic ARP
entries. The maximum number of
dynamic ARP entries that a Layer 3
interface can learn is 8192.
If the value of the number argument is
set to 0, the interface is disabled from
learning dynamic ARP entries.
Remarks
N/A
Optional.
20 minutes by default.