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2950 and 3524 Multicast traffic control HELP!!!

Have a 2620 edge router with 3524 and 2950 switches below. We have a lab workstation control app which

uses multicast. It causes 2950 switches to stall but doesnt effect 3524 switches. Does igmp and cgmp

have any effect with this?

What should I change from default settings?

Thanks

1 REPLY
Silver

Re: 2950 and 3524 Multicast traffic control HELP!!!

Layer 3 switches do not forward multicast traffic by default. A Layer 2 switch floods a multicast packet on all the ports in the destination LAN by default. CGMP, IGMP snooping and RGMP help switches make multicast forwarding decisions. The following document provides detailed information on IGMP, CGMP and RGMP support on Catalyst switches. It also provides information on the multicast commands required to enable the feature on Catalyst switches. Hope this helps.

http://www.cisco.com/en/US/tech/tk828/tk363/technologies_tech_note09186a0080122a70.shtml

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