Command Manual – Network Protocol
Quidway S8500 Series Routing Switches Chapter 2 ARP Configuration Commands
Huawei Technologies Proprietary
2-4
vpn-instance-name: The VPN instance name of the VPN which the IP address belongs
to.
Description
Use the arp static multi-port command to add a multicast ARP port. When you add
the first port, the system generates a multicast ARP entry.
Use the undo arp multi-port command to remove a multicast ARP port. When you
remove the last port, the system removes the multicast ARP entry.
The multicast ARP feature allows you to associate a common unicast route to a Layer 2
multicast group, that is, add multiple outgoing ports for an outgoing ARP packet so that
the packet can be sent to multiple ports. As a result, a static multicast ARP entry is
generated. In brief, a multicast ARP entry is a static ARP entry with a multicast MAC
address, which may correspond to multiple ports.
By the multi-port keyword in this command, the switch decides that the port to be
added is for a multicast ARP entry. Only one port can be added every time the
command is executed. If the ARP entry does not exist, a new entry is generated. If the
port has already been in the entry, no further processing is made.
Note that:
z You cannot configure multicast ARP for aggregation ports. Otherwise, the system
will prompt error message.
z At present, the outgoing ports in the same multicast ARP entry cannot be in
different boards.
You can add multiple ports one by one by setting the multicast static ARP entry. To view
the configuration, use the display arp multi-port command.
Related commands: reset arp, display arp, debugging arp, arp static.
Example
# In an ARP entry, the IP address is 10.10.10.98, and the MAC address is
0150-0098-0098. Add the outgoing ports Ethernet 6/1/1, Ethernet 6/1/2 and Ethernet
6/1/3 to the ARP entry.
[Quidway] arp static 10.10.10.98 0150-0098-0098 20 multi-port Ethernet 6/1/1
[Quidway] arp static 10.10.10.98 0150-0098-0098 20 multi-port Ethernet 6/1/2
[Quidway] arp static 10.10.10.98 0150-0098-0098 20 multi-port Ethernet 6/1/3
2.1.4 arp timer aging
Syntax
arp timer aging aging-time
undo arp timer aging
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