Nortel Networks NN47200-503 manual Changing the default ARP aging time

IP routing configuration examples 121

This section contains the following topics:

•"Changing the default ARP aging time" (page 121)

•"Adding a static ARP entry to a VLAN" (page 121)

•"Adding a static ARP entry to a brouter port" (page 122)

•"Deleting a static ARP entry" (page 122)

Changing the default ARP aging time

The default ARP aging time value is set for 360 minutes. To change this default aging time use the ip arp timeout command. This command has the following syntax:

ip arp timeout <minutes>

The <minutes> parameter represents the number of minutes to set for the new timeout setting. This is a value in the range of 5 to 360.

The following is an example of setting a new default aging time:

5530-24TFD(config)# ip arp timeout 180

The new setting can be confirmed by using the show ip routing command.

Adding a static ARP entry to a VLAN

To add a static ARP entry to a VLAN, use the ip arp command. This command has the following syntax:

ip arp ip <ip_address> mac <mac_address> port <port_number> vid <vid_number>

The following table outlines the parameters of this command

ip arp parameters

Parameter	Description
ip_address	The IP address of the entry.
mac_address	The MAC address of the entry.
port_number	The slot/port number of the brouter port.
vid_number	The VLAN ID of the entry.

The following is an example of adding a static ARP entry to a VLAN:

5530-24TFD(config)# ip arp 10.1.1.23 00:00:11:43:54:23 1/48 vid 1

Nortel Ethernet Routing Switch 5500 Series

Configuration-IP Routing Protocols

NN47200-503 03.01 Standard

5.127 August 2007

Copyright © 2005-2007, Nortel Networks