Hi sachandio,
Broadcast TV: Based on IP multicast technology, only one video data stream is sent for each program. Theoretically, unlimited users can watch programs.
Therefore, it is suitable for video applications with large audiences. However, subscribers cannot request programs at any time because it is a one-way, one-to-many broadcast service.
It consumes little bandwidth and is a cost-effective video application.
BTV is at the service level. For NE routers, no matter what service it is, only channels are provided, so configure multicast on NE routers.
You can refer to https://support.huawei.com/hedex/hdx.do?docid=EDOC1100168821&id=EN-US_TASK_0172367667&lang=en
I hope it helps!