you may have seen my other posts about wISP service for batman-adv.
I'm looking at how batman-adv can handle multicast
the design is batman-adv running over PtP wireless links and then PtMP
access radios bridged in.
I'm looking at the multicast-optimizations page but I'm unclear on something.
I see that if there is just one listener, then it basically becomes a
unicast stream. But what if I have multiple sites (lets say 10) and
at 2 sites there are 1 listener each.
does this mean that all 10 sites will get the broadcast? or that just
the 2 sites that have listeners will get the broadcast?
I'm not sure how old that page is or if anything has evolved.
The goal here would be to only send a stream to a site if there were
at least 1 listener.
I could also potentially have a device at each site handling PIM for
multicast, but I haven't dived into how that would work on batman-adv
or if I'd have to run a separaet VLAN between each PIM router outside