Foundry Networks Switch and Router Installation And Configuration Manual page 869

NOTE: All FSRP configurations are implemented using a single configuration panel of the Web management
interface. Given this, all other configuration steps, other than enabling the feature, are shown in a separate
section at the end of this chapter rather than interspersed with CLI examples.
Assign Virtual Router IP Addresses
In the examples in this section, FSRP is used to provide a redundant path between Host 1 and Host 3 to ensure
against failure of the primary path. See Figure 22.5.
Router 1
TurboIron
Link Link
Activity
Activity
Console
Power
Active
Preference = 200
Router 1:
IP Address for Interface A: 192.53.5.2
Virtual Router IP address for Interface A: 192.53.5.1
IP Address for Interface C: 192.55.4.2
Virtual Router IP address for Interface C: 192.55.4.1
Figure 22.5 FSRP operating in a NetIron network
USING THE CLI
EXAMPLE:
To define and assign the virtual router IP addresses for Router 1, shown in Figure 22.5, you would need to define
two separate virtual IP addresses for interfaces A and C and link those addresses to the IP addresses of the
physical interfaces for A and C.
This example assumes that interface A corresponds to physical interface 17, and interface C corresponds to
physical interface 20.
Configuring Router 1
To establish the virtual IP address 192.53.5.1 for interface A defined by IP address 192.53.5.2 and Ethernet port
17, enter the following commands:
Router1(config)# inter e 17
Router1(config-if-17)# ip fsrp address 192.53.5.2 vir-rtr-ip 192.53.5.1 other-rtr-ip
192.53.5.3
Notice that the latter command also defines the other router used in this configuration by entering the IP address
for Interface B on Router 2 (other-rtr-ip 192.53.5.3).
December 2000
Host 1
Default Router
192.53.5.1
192.53.5.1
Router 2
(A)
192.53.5.2
Activity
FDX FDX
Link/Act Link/Act Power
Standby
(C)
192.55.4.2
Preference = 60
192.55.4.1
Default Router
192.55.4.1
Host 3
Host 2
Default Router
192.53.5.1
192.53.5.1
192.53.5.3
TurboIron
Link Link
Activity
Console
FDX
Link/Act
192.55.4.3
192.55.4.1
Router 2:
IP Address for Interface B: 192.53.5.3
Virtual Router IP address for Interface B: 192.53.5.1
IP Address for Interface D: 192.55.4.3
Virtual Router IP address for Interface D: 192.55.4.1
Configuring FSRP
192.53.5.1
(B)
Virtual
Router
FDX
Link/Act
(D)
192.55.4.1
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