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Cisco Catalyst Blade Switch 3130 for Dell Software Configuration Guide
OL-13270-01
Chapter46 Configuring Fallback Bri dging Configuring Fallback Bridging
Beginning in privileged EXEC mode, follow these steps to create a bridge g rou p and t o ass ig n a n
interface to it. This procedure is required.
To remove a bridge group, use the no bridge bridge-group global configuration command. The no
bridge bridge-group command automatically removes all SVIs and routes ports from that bridge group.
To remove an interface from a bridge group and to remove the bridge group, use the no bridge-group
bridge-group interface configuration command.
This example shows how to create bridge group 10, to specify that the VL AN -brid ge ST P r uns in th e
bridge group, to define a port as a routed port, and to assign the port to the bridge group:
Switch(config)# bridge 10 protocol vlan-bridge
Switch(config)# interface gigabitethernet3/0/1
Switch(config-if)# no switchport
Switch(config-if)# no shutdown
Switch(config-if)# bridge-group 10
This example shows how to create bridge group 10 and to specify that the VLAN-bridge STP runs in the
bridge group. It defines an SVI for VLAN 2 and assigns it to the br idge grou p:
Switch(config)# bridge 10 protocol vlan-bridge
Switch(config)# vlan 2
Switch(config-vlan)# exit
Switch(config)# interface vlan2
Command Purpose
Step1 configure terminal Enter global configuration mode.
Step2 bridge bridge-group protocol
vlan-bridge Assign a bridge group number, and specify the VLAN-bridge
spanning-tree protocol to run in the bridge group. The ibm and dec
keywords are not supported.
For bridge-group, specify the bridge group number. The range is 1
to 255. You can create up to 32 bridge groups.
Frames are bridged only among interfaces in the same group.
Step3 interface interface-id Specify the interface on which you want to assign the bridge group, and
enter interface configuration mode.
The specified interface must be one of these:
•A routed port: a physical port that you have configured as a Layer 3
port by entering the no switchport interface configuration
command.
•An SVI: a VLAN interface that you created by using the interface
vlan vlan-id global configuration command.
Note You can assign an IP address to the routed port or to the SVI,
but it is not required.
Step4 bridge-group bridge-group Assign the interface to the bridge group created in Step 2.
By default, the interface is not assigned to any bridge group. A n
interface can be assigned to only one bridge group.
Step5 end Return to privileged EXEC mode.
Step6 show running-config Verify your entries.
Step7 copy running-config startup-config (Optional) Save your entries in the configuration file.