Max-Forwards fields can be used in S1P messages to solve loop problems and avoid endless packet forwarding.

Answer(s): B

Regarding multicast, the following description is incorrect

Add Lgmp user under BTV, and by default, multicast users can watch 8 programs.
The user-issued Report is captured in the single board logic and sent to the single board CPU
Device-based global configurations of Layer 2 groups refer to common parameters of protocols ( IGMP Proxy, GMP Snoop) to all
When the igmp match mode disables, you need to configure the multicast program group

Answer(s): D