Configuring BIER on the Public Network

In the NG MVPN over BIER scenario, you need to configure all devices in each BIER sub-domain on the public network.

Context

Each edge node in a BIER sub-domain must be configured with a BFR-ID that is unique to the sub-domain. In the NG MVPN over BIER scenario, a BFR-ID needs to be configured for the sender PE and receiver PEs. Ps do not require BFR-IDs, but you need to enable BIER on the Ps.

Procedure

Run system-view
The system view is displayed.
Run bier
BIER is enabled, and the BIER view is displayed.
Run sub-domain sub-domain-val
A BIER sub-domain is configured.
- Run the bfr-id bfr-id-val command to configure a BFR-ID that is unique in the BIER sub-domain for the PE.
- Run the encapsulation-type mpls bsl { 64 | 128 | 256 } max-si command to set the encapsulation type, BSL, and Max-SI of packets carried using BIER.
  
  The values of bfr-id-val, bsl, and max-si-val must meet the following formula:
  
  (bfr-id-val – 1)/bsl ≤ max-si-val
  
  If bsl and max-si-val are configured before bfr-id-val, bfr-id-val ranges from 1 to bsl x (max-si-val + 1).
- Run the bfr-prefix interface { interface-name | interface-type interface-number } command to configure a BFR-prefix for the PE in the BIER sub-domain.
  A BFR-prefix is an IPv4 address in a sub-domain for the BFR. It must be a loopback interface address with a 32-bit mask. Therefore, the interface must be a loopback interface. The function takes effect only after IS-IS is enabled on the interface
- Run the protocol isis command to configure the underlay protocol used to advertise BIER information.
- (Optional) Run the max-load-balance number command to configure the maximum number of BIER tunnels for load balancing.
Run commit
The configuration is committed.