We are trying to set up basic multicasting (Single VLAN no multicast across subnets) for the purpose of workstation imaging (Apple Software Restore, Ghost, Zenworks, etc.). We are able to multicast, but increasing the multicast rate to an acceptable level floods the network. It appears that the multicast packets are being replicated out to all switch ports on the vlan.
Network architecture: Main switch - Catalyst 4506 w/IGMP snooping globally enabled.
Multicast server switch - Catalyst 3550-12T w/IGMP snooping globally enabled and connected to main switch via 1000Mb link.
Workstation switches - a combination of 3550 and 2924 switches connected directly to main switch via 100Mb or 1000Mb links. IGMP settings at factory defaults.
Site router - 7206VXD. No configuration made for multicasting. (I don't want any of the multicast traffic to cross the router - I want it all to stay local)
What am I missing? How do I ensure that the multicast packets are only replicated to the ports that are part of the group?
Thank you for any help.
Glad you got it working. I haven't used Cisco MRM so i can't really comment on why you were seeing packet loss.
If i get a chance next week i'll have a look at MRM in our lab.