Product Documentation

Configuring Bridge Groups

Feb 20, 2017

Typically, when you want to merge two or more VLANs into a single domain, you change the VLAN configuration on all the devices in the separate domains. This can be a tedious task. To more easily merge multiple VLANs into a single broadcast domain, you can use bridge groups.

The bridge groups feature works the same way as a VLAN. Multiple VLANS can be bound to a single bridge group, and all VLANs bound to same bridge group form a single broadcast domain. You can bind only Layer 2 VLANs to a bridge group. For Layer 3 functionality, you must assign an IP address to a bridge group.

In Layer 2 mode, a broadcast packet received on an interface belonging to a particular VLAN is bridged to other VLANs that belong to the same bridge group. In the case of a unicast packet, the NetScaler appliance searches its bridge table for the learned MAC addresses of all the VLANs belonging to same bridge group.

In Layer 3 forwarding mode, an IP subnet is bound to a bridge group. The NetScaler accepts incoming packets belonging to the bound subnet and forwards the packets only on VLANs that are bound to the bridge group.

IPv6 routing can be enabled on a configured bridge group.


Bridge Group feature and Bridge BPDU mode cannot work together.



To add a bridge group and bind VLANs by using the command line interface

To add a bridge group and bind VLANs and verify the configuration, type the following commands:

  • add bridgegroup <id> [-ipv6DynamicRouting ( ENABLED | DISABLED )]
  • show bridgegroup <id>
  • bind bridgegroup <id> -vlan <positive_integer>
  • show bridgegroup <id>


``` pre codeblock

add bridgegroup 12 Done ```

To remove a bridge group by using the command line interface

At the command prompt, type:

rm bridgegroup <id>


``` pre codeblock

rm bridgegroup 12 ```

To configure a bridge group by using the configuration utility

Navigate to System > Network > Bridge Groups, add a new bridge group, or edit an existing bridge group.