14To do… Use the command… Remarks2. Configure a permanentstatic ARP entryarp static ip-address mac-addressvlan-id interface-type interface-numberRequiredNo permanent static ARP entry isconfigured by default.3. Configure a non-permanent static ARPentryarp static ip-address mac-addressRequiredNo non-permanent static ARP entryis configured by default.• The vlan-id argument must be the ID of an existing VLAN which corresponds to the ARP entries. In addition, theEthernet interface following the argument must belong to that VLAN. A VLAN interface must be created for theVLAN.• The IP address of the VLAN interface corresponding to the vlan-id argument must belong to the same networksegment as the IP address specified by the ip-address argument.Configuring the maximum number of ARP entries for aninterfaceTo set the maximum number of dynamic ARP entries that an interface can learn:To do… Use the command… Remarks1. Enter system view system-view —2. Enter Ethernet interface view interface interface-type interface-number —3. Set the maximum number ofdynamic ARP entries that aninterface can learnarp max-learning-num number OptionalDefault: 256Setting the aging time for dynamic ARP entriesTo keep pace with network changes, each dynamic ARP entry in the ARP table has a limited lifetime,called its aging time. The aging time is reset each time the dynamic ARP entry is used. Dynamic ARPentries that are not refreshed before their aging time expires are deleted from the ARP table. You canadjust the aging time for dynamic ARP entries.To set the aging time for dynamic ARP entries:To do… Use the command… Remarks1. Enter system view system-view —2. Set the aging time fordynamic ARP entries arp timer aging aging-time Optional20 minutes by default.
