[lug] Multicast packets?

[Atkinson, Chip]

Does anyone know what things use multicast packets?  Specifically I'm trying
to find out why my machine has outages with the network.  Upon looking at
the problem I see blasts of multicast packets as reported by ntop.  I'm just
in a "typical" corporate network.  I believe that the outage is caused
because the network is 100Mb/s whereas my machine is 10Mb/s and the
translation is done by the hub I'm connected to.  This then means that the
data being sent out by the 100Mb/s machines basically overwhelms my machine.

Thanks in advance,

Chip