R21xx-HP FlexFabric 11900 Layer 3 IP Services Configuration Guide

4
Step Command Remarks
2. Configure a static ARP
entry.
• Configure a long static ARP entry:
arp static ip-address mac-address
vlan-id interface-type interface-number
[ vpn-instance vpn-instance-name ]
• Configure a short static ARP entry:
arp static ip-address mac-address
[ vpn-instance vpn-instance-name ]
Use either command.
By default, no static ARP entry is
configured.
Configuring a multiport ARP entry
A multiport ARP entry comprises an IP address, MAC address, and VLAN ID. To use the multiport ARP
entry, you must also configure a multicast or multiport unicast MAC address entry that has the same MAC
address and VLAN ID as the multiport ARP entry to specify multiple output interfaces. In addition, the IP
address in the multiport ARP entry must reside on the same subnet as the virtual interface of the specified
VLAN (VLAN interface). Otherwise, the multiport ARP entry does not take effect. For more information
about multiport unicast MAC addresses, see the mac-address multiport command in Layer 2—LAN
Switching Command Reference. For more information about multicast MAC addresses, see the
mac-address multicast command in IP Multicast Command Reference.
A multiport ARP entry can overwrite a dynamic, short static or long static ARP entry. A short static or long
static ARP entry can also overwrite a multiport ARP entry.
To configure a multiport ARP entry:
Step Command Remarks
1. Enter system view.
system-view N/A
2. Configure a multicast or
multiport unicast MAC
address entry.
• Configure a multiport unicast MAC
address entry:
mac-address multiport mac-address
interface interface-list vlan vlan-id
• Configure a multicast MAC address
entry:
mac-address multicast mac-address
interface interface-list vlan vlan-id
Use either command.
By default, no multicast or
multiport unicast MAC address
entries are configured.
3. Configure a multiport ARP
entry.
arp multiport ip-address mac-address
vlan-id [ vpn-instance
vpn-instance-name ]
By default, no multiport ARP
entries are configured.
Configuring the maximum number of dynamic ARP
entries
An interface can dynamically learn ARP entries. To prevent an interface from holding too many ARP
entries, you can set the maximum number of dynamic ARP entries that the interface can learn. When the
maximum number is reached, the interface stops learning ARP entries.