I manage a lab of PCs running Windows XP Pro. All of the
PCs are connected to an Allied Telesyn AT-8024 (firmware
v3.3.1); IGMP snooping is enabled. To clone the systems
in the lab I set up one PC then booted that PC from a
floppy with the DOS version of Ghost server; similarly
the systems to be cloned are booted from floppies with
the Ghost client. (It's more automated than that, but that's
the general scheme. FYI the version of Ghost is 7.5). I can
see the server and clients join and leave multicast groups
when logged into the AT-8024 and issuing the appropriate
commands on the switch. If I substitute udpcast for Ghost,
the switch never registers that either the server or the
clients have joined a multicast group; messages on the
udpcast server and clients indicate otherwise. If I then
tell the server to send an image to the clients the network
is flooded; this doesn't happen when using Ghost. I realize
it's time to roll up my sleeves, break out our network
monitoring laptop, and get to work...just thought I'd ask
if anyone else has run into this or might have some
suggestions.
Thanks in advance,
Tom Carpenter
P.S.
Don't know if this info is helpful, but when I start up the
Ghost server the switch indicates the following:
Multicast Group Member Port VLAN Host IP
--------------- ----------- ---- -------
01:00:5e:4d:00:00 21 1 172.30.22.120
When the first Ghost client is started, that information disappears
and the following is displayed:
Multicast Group Member Port VLAN Host IP
--------------- ----------- ---- -------
01:00:5e:4d:00:00 19 1 172.30.22.119 Left the group
01:00:5e:4d:13:5e 19 1 172.30.22.119
Upon starting the second Ghost client the switch displays the
following:
Multicast Group Member Port VLAN Host IP
--------------- ----------- ---- -------
01:00:5e:4d:13:5e 19 1 172.30.22.119
20 1 172.30.22.118