Package bier
The XML API OSS interface uses the bier package to configure BIER.
The Bit Index Explicit Replication (BIER) allows optimal forwarding of multicast packets
without a need for a protocol to build multicast trees (simplified control plane) and without
a need for intermediate routers to maintain any per multicast flow state. Multiple Templates
can be configured under a single BIER instance on the base router and multiple Subdomains
can be configured under each Template.