Foundry Networks Switch and Router Installation And Configuration Manual page 872

Foundry Switch and Router Installation and Configuration Guide
3. Click on the FSRP link.
• If the device does not have an FSRP configuration, the FSRP configuration panel is displayed.
• If FSRP is already configured but you are adding a new FSRP configuration, click on the Add Interface
link to display the FSRP configuration panel, as shown in the following example.
• If you are modifying an existing FSRP configuration, click on the Modify button to the right of the row
describing the configuration to display the FSRP configuration panel.
4. Select the IP address to be configured from the IP Address field's pull down menu. For example, if you are
initially assigning FSRP to interface A (Router 1) as shown in Figure 22.5, you would select IP address
192.53.5.2.
5. Assign a virtual IP address for the virtual router. A virtual router IP address needs to be configured on at least
one router in the FSRP group. For interface A, you would assign 192.53.5.1, as shown in the network
configuration of Figure 22.5.
NOTE: The default IP address for a virtual router is 0.0.0.0.
6. Enter the other router IP address. This is the physical IP address of the partner router's interface in the
active-standby router relationship. Notice that in the case of the example (Figure 22.5), interface B on router
2 is designated as the standby router interface so IP address 192.53.5.3 is entered.
7. To establish a router as the active router in the redundancy configuration, a higher value should be entered for
its preference level. In this case, because router 1 is the desired active router and the router currently being
configured, a value of 200 is entered.
8. Modify the keep alive time parameter if a value other than the default value of 3 seconds is desired. For this
configuration, modify the value to 15.
NOTE: The keep alive time parameter allows the user to modify how often the FSRP hello message is sent
on an interface. Possible values are 1 – 120 seconds. The default is 3 seconds.
NOTE: The keep alive time parameter must be set to the same value on both the active and standby routers
when both routers are connected to the same sub-net.
9. Modify the dead time parameter if a value other than the default value of 9 seconds is desired. For this
configuration you would modify the value to 30.
NOTE: The dead time parameter allows you to define the period of time (hold time) that the standby router
will wait before determining that the active router is unavailable (dead). When the configured period of time
expires, the standby router will become active. Possible values are 3 – 255. The default value is 9 seconds.
NOTE: The dead time parameter must be set to the same value on both the active and standby routers
when both routers are connected to the same sub-net.
10. Select the track port by selecting a box next to the desired interface. For purposes of this example, you would
select interface 1 as the track port for interface A on router 1.
NOTE: The track port is a physical port that is used to track the status of ports that provide redundant paths.
If the software detects a change in state (up or down), the software increases or decreases the priority of the
FSRP Group Interface accordingly.
NOTE: If you are configuring a Chassis device, the track port options are listed in a slot/port combination
(for example, 1/1, which indicates <slot>/<port>), indicating that the port is resident on a module in slot 1 of
the BigIron.
22 - 10 December 2000