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New Member

Multicast ON two 3560's

Hi

I have got a number of Multicast Servers that send each other multicast traffic.

They use a number of different groups that they can join and leave automatically.

The servers are connected to two stacked 3560's but the switches at the moment are flooding the multicast traffic out all interfaces. Ip igmp snooping is enabled but its not recognising any of the ports as joining any of the groups because none of the traffic is coming from a routed interface.

Is there away I can stop the switches flooding out the multicast traffic?

5 REPLIES
Silver

Re: Multicast ON two 3560's

New Member

Re: Multicast ON two 3560's

Thanks for the reply. In the example in the link they have a routed interface all my traffic is layer 2 its not going through a router.

Is there a way i can do this without having a routed interface? All my traffic is currently being flooded out the switch

Thanks

Re: Multicast ON two 3560's

You can try to configure Storm control feature on 3560 switch ports. Storm control prevents switchports on a LAN from being disrupted by a broadcast, multicast, or unicast storm on one of the physical interfaces.

hope this URL will give you more information.

http://www.cisco.com/en/US/products/hw/switches/ps5528/products_configuration_guide_chapter09186a00801e85e4.html

rate if it does ....

New Member

Re: Multicast ON two 3560's

There are two solutions for you from previous post.

1. Enable IGMP Querier Feature on a Layer 2 Catalyst Switch;

2. Configure Static Mrouter Port on the Switch.

Both solution do not need a routed interface.

Hope this helps.

Regards,

Bill.

New Member

Re: Multicast ON two 3560's

Bill

I enabled IGMP querier and it worked a treat

thanks

Stephen

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