Irb Configuration Example - Cisco ONS 15454 SDH Configuration Manual

Chapter 12 Configuring IRB
To enable and configure IRB and BVI, perform the following procedure, beginning in global
configuration mode:
Command
Step 1
Router(config)# bridge irb
Step 2
Router(config)# interface bvi bridge-group
Step 3
Router(config-if)# ip address ip-address
ip-address-subnet-mask
Step 4
Router(config-if)# exit
Step 5
Router(config)# bridge bridge-group route
protocol
Step 6
Router(config)# end
Step 7
Router# copy running-config startup-config

IRB Configuration Example

Figure 12-1
Router A, and
Figure 12-1
192.168.2.1/24
Example 12-1 Configuring Router A
bridge irb
bridge 1 protocol ieee
bridge 1 route ip
!
!
interface FastEthernet0
ip address 192.168.2.1 255.255.255.0
shows an example of IRB configuration.
Example 12-2 shows the configuration code for Router B.
Configuring IRB
BVI 1 192.168.1.1/24
pos 0
bridge 1
pos 1
bridge 1
fast ethernet 0
Cisco ONS 15454 and Cisco ONS 15454 SDH Ethernet Card Software Feature and Configuration Guide, R8.0
Purpose
Enables IRB. Allows bridging of traffic.
Configures the BVI by assigning the number of the
corresponding bridge group to the BVI. Each bridge
group can have only one corresponding BVI.
Configures IP addresses on routed interfaces.
Exits the interface configuration mode.
Enables a BVI to accept and route routable packets
received from its corresponding bridge group.
Enter this command for each protocol that you want
the BVI to route from its corresponding bridge
group to other routed interfaces.
Returns to the privileged EXEC mode.
(Optional) Saves your configuration changes to
NVRAM.
Example 12-1 shows the configuration code for
pos 0
bridge 1
SONET/SDH
pos 1
bridge 1
fast ethernet 0
IRB Configuration Example
BVI 1 192.168.1.2/24
192.168.3.1/24
12-3