[c-nsp] multicast on layer 2

[Tarko Tikan]

hi!

> I'd like to stop this pointless discussion right now...

It's not pointless. Multicast isn't widely deployed so it's nice to hear bits 
and pieces about it.

Which reminds me, does anyone have any _good_ book/online recommendations 
about multicast and deploying it (especially how IGMP/PIM/RD/etc actually 
work together, not just the usual "multicast is almost like broadcast; these 
are multicast addresses; sparse/dense are bit different; here you go")?

-- 
tarko