Configuring an I-VSI and a B-VSI

An I-VSI can be bound to a B-VSI only after their B-MAC addresses and the I-VSI's I-tag are configured.

Procedure

Configure an I-VSI.
1. Run system-view
  The system view is displayed.
2. Run vsi vsi-name
  The I-VSI view is displayed.
3. Run pbb i-tag i-tag
  An I-tag is configured.
  
  An I-tag is a field in the MAC header of a public network packet and applies only to an I-VSI. The I-VSIs on the endpoint PEs of a VPLS PW must have the same I-tag, and this I-tag must be unique on the entire network.
4. Run pbb backbone-source-mac source-mac-address
  A B-SMAC address is configured.
  - The B-SMAC address is a virtual MAC address.
  - The B-SMAC and B-DMAC addresses in an I-VSI must be different.
  - A B-SMAC address can be configured in either an I-VSI or a B-VSI. If an I-VSI and the B-VSI to which the I-VSI is bound have different B-SMAC addresses, the B-SMAC address configured in the I-VSI takes effect.
  - In scenarios where multiple paths exist between two PEs and multiple I-VSIs are bound to a B-VSI, to implement load balancing, ensure that at least one I-VSI has a B-SMAC address configured. In addition, the B-SMAC addresses configured in different I-VSIs must be different.
    
    In local PBB VPLS, the B-SMAC and B-DMAC addresses must be configured in the I-VSIs and one I-VSI's B-DMAC address must be the same as the other I-VSI's B-SMAC address.
5. Run pbb backbone-destination-mac destination-mac-address static
  A B-DMAC address is configured.
  - The B-DMAC address is a virtual MAC address.
  - A B-DMAC address can be configured only in an I-VSI, and must be the same as the B-SMAC address configured on the remote end.
6. Run commit
  The configuration is committed.
Configure a B-VSI.
1. Run system-view
  The system view is displayed.
2. Run vsi vsi-name
  The B-VSI view is displayed.
3. Run pbb backbone-source-mac source-mac-address
  A B-SMAC address is configured.
  - The B-SMAC address is a virtual MAC address.
  - A B-SMAC address can be configured in either an I-VSI or a B-VSI. If an I-VSI and the B-VSI to which the I-VSI is bound have different B-SMAC addresses, the B-SMAC address configured in the I-VSI takes effect.
  - In scenarios where multiple paths exist between two PEs and multiple I-VSIs are bound to a B-VSI, to implement load balancing, ensure that at least one I-VSI has a B-SMAC address configured. In addition, the B-SMAC addresses configured in different I-VSIs must be different.
4. (Optional) Run pbb mac-withdraw mac-opt-compatible
  The B-VSI is configured to send MAC Withdraw messages that carry the 0x406 TLV.
5. Run commit
  The configuration is committed.