All things related to multicast

[Alan Crosswell <>]

SSM is great for one-way media streaming and WWW guides probably work just
fine for that.  However, there is still a small niche of ASM-oriented
apps that are not geared to a human user clicking on a web link.  My fear
is that the focus on doing SSM exclusively will set these back.  In fact,
the whole source discovery process is intrinsically an ASM thing which is
kludged up today with multiple-unicast (WWW and CDN's that are needed for
large site just 'cuz of the scaling issues which multicast solves).

/a