Configuring Bridging & IRB
Configuring Bridging & IRB ( Configuring Viptela Switching )
In the configuring Viptela Switching , Let’s see how to configure the Bridge Domain and How BD are marked with VLAN tag or untagged.
Create a Bridge Domain with VLAN Tagging
When a BD is tagged with VLAN, the packet sent by domain, this VLAN ID is inserted in frame.
This tagging helps vEdge router to determine which interface it should send broadcast packet.
Now to configure BD with VLAN tag, first create the BD and assign the VLAN tag to this domain and further associate an interface on to it.
Create a bridging domain:
Tag the bridging domain with a VLAN ID: range is 1 to 4095
Associate an interface with the bridging domain, and enable that interface ( only physical interface and not sub-interface )
Once physical interface is added to VLAN , following are the optional parameters.
Configure a description for the VLAN interface, to help identify the interface in operational command output:
Configure a static MAC address for the VLAN interface:
Configure a name for the VLAN, to help identify the VLAN in operational command output:
By default , a bridge domain can only learn up to 1024 MAC address , but this range can be modified to 4096.
By default, MAC table entries age out after 300 seconds (5 minutes). You can modify this to a value from 10 through 4096 seconds:
Here is an example configuration:
Once an interface is configured in BD then to add or change the VLAN ID for that BD, DB must be deleted and then reconfigure the domain with correct VLAN ID.
To see which interface Bridging is working:
Create a Bridge Domain with an Untagged VLAN
When a BD is not tagged with any VLAN, all frame sent from this BD is sent untagged.