Configure Arp; Configure Arp Timed Probing Function - Huawei Quidway S3500 Series Operation Manual

Operation Manual - Network Protocol
Quidway S3500 Series Ethernet Switches
Normally, dynamic ARP executes and automatically searches for the resolution from
the IP address to the Ethernet MAC address without the administrator.

2.2 Configure ARP

The ARP mapping table can be maintained dynamically or manually. Usually, the
manually configured mapping from the IP addresses to the MAC addresses is known
as static ARP. The user can display, add or delete the entries in the ARP mapping table
through relevant manual maintenance commands.
The static ARP configuration includes:
Manually Add/delete static ARP Mapping Entries
Configure ARP timed probing function (S3526/S3526 FM/S3526 FS support)
Configure the dynamic ARP aging timer
Configure ARP Source Address Suppression
Enabling/disabling ARP the checking function of ARP entry
2.2.1 Manually Add/Delete Static ARP Mapping Entries
Perform the following configuration in System view.
Table 2-1 Manually add/delete static ARP mapping Entries
Manually add a static ARP
mapping entry
Manually delete a static ARP
mapping entry
Static ARP map entry will be always valid as long as Ethernet switch works normally.
But if the VLAN corresponding ARP mapping entry is deleted, the ARP mapping entry
will be also deleted. The valid period of dynamic ARP map entries will last only 20
minutes by default.
The parameter vlan-id must be the ID of a VLAN that has been created by the user, and
the Ethernet port specified behind this parameter must belong to the VLAN.
By default, the ARP mapping table is empty and the address mapping is obtained
through dynamic ARP.

2.2.2 Configure ARP Timed Probing Function

After an Ethernet switch is configured with the IP addresses requiring ARP timed
probing, it will send ARP Request packets to probe these IP addresses without being
requested for the purpose of maintaining the latest IP-MAC address maps. Thus, the
normal communications between devices can be ensured.
Operation
Huawei Technologies Proprietary
Command
arp static ip-address mac-address [ vlan-id
{ interface-type interface-number | interface-name } ]
undo arp ip-address
2-2
Chapter 2 ARP Configuration