H3C S7500E Series Ethernet Switches Operation Manual

Operation Manual – ARP
H3C S7500E Series Ethernet Switches Chapter 1 ARP Configuration
1-5
To do… Use the command… Remarks
Configure a
non-permanent static
ARP entry
arp static ip-address
mac-address
Required
No non-permanent static
ARP entry is configured
by default.
Caution:
The vlan-id argument must be the ID of an existing VLAN which corresponds to the
ARP entries. In addition, the Ethernet port following the argument must belong to that
VLAN. A VLAN interface must be created for the VLAN.
1.2.2 Configuring the Maximum Number of ARP Entries for a VLAN Interface
Follow these steps to set the maximum number of dynamic ARP entries that a VLAN
interface can learn:
To do… Use the command… Remarks
Enter system view
system-view
—
Enter VLAN interface view
interface Vlan-interface vlan-id
—
Set the maximum number of
dynamic ARP entries that a
VLAN interface can learn
arp max-learning-num number
Optional
8192 by default.
1.2.3 Setting Aging Time for Dynamic ARP Entries
After dynamic ARP entries expire, the system will delete them from the ARP mapping
table. You can adjust the aging time for dynamic ARP entries according to the actual
network condition.
Follow these steps to set aging time for dynamic ARP entries:
To do… Use the command… Remarks
Enter system view
system-view
—
Set aging time for
dynamic ARP entries
arp timer aging
aging-time
Optional
20 minutes by default.