Configuring Multicast Service

[anand]

could any one let me know the exact full configuration of Multicast service, because we have cisco 6509 with Supervisor Engine 2 with Layer 3 card, with 1 main & other as redundant. waiting for your reply.

[Georg Pauwen]

Hello,

first of all, enable IP multicast routing with the global command ´ip multicast-routing´. There are different modes for multicast, the easiest one to configure is dense mode, use the interface command ´ip pim dense-mode´ on all (VLAN) interfaces where clients are connected that want to use multicast. There are certain implications when using dense mode, such as that more bandwidth is being utilized, so try it out and if you run into trouble, consider sparse-dense or sparse mode...

If your multicast traffic is limited to only certain VLANs, you could use Multicast VLAN Registration.

HTH,

GP

[anand]

Hi,

i hav enabled "IGMP" globally in Cisco 6509 switch & also i hav enabled "ip-multicast routing" gloablly in 6509 router. i hav also put the configuration in all the VLANs.(mentioned here)

ip pim dense-mode

ip multicast helper-map broadcast 224.0.1.40 100

ip multicast helper-map broadcast 228.1.0.0 100

ip multicast helper-map broadcast 224.1.0.0 100

now after this what all i should do? i hav nearly 25 Nos. of Cisco 2950-24T connected to this Cisco 6509, i really don't know what should i do now?should i also put any commands on Cisco 2950-24T related to multicast?if so, kindly let me know. please help me in this regd. & tell me what configuration should i put in Cisco 6509 & Cisco 2950-24T.