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Webcast-Catalyst9k
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Can a multicast router be a RP and a receiver at same time?

This is a question about multicast. I´d like to know if a router configured to be a RP can also have receivers conencted to its interfaces, or the receivers should be at other routers? Also, even if it does not have receivers, being a RP, can I put one of its interfaces as a member of a group, using ip igmp static-group on one of the interfaces of the router? In reality, I´d like to send all the multicast traffic to only one router, that will send it to one of his interfaces, that will be transmitted by a satellite multicast system, so there will be no IGMP in the LAN. So, the idea is to configure ip igmp static-group in the LAN interface, and configure this router to be a RP, so everyone sends to him. There will be no Joins and Prunes, cause the RP and receiver are on the same router. Will it work?

1 REPLY
New Member

Re: Can a multicast router be a RP and a receiver at same time?

Hi,

1-I´d like to know if a router configured to be a RP can also have receivers conencted to its interfaces, or the receivers should be at other routers?

--Yes. A router can be RP at the same time it can receive or send multicast traffic trough its interfaces.

2-Also, even if it does not have receivers, being a RP, can I put one of its interfaces as a member of a group, using ip igmp static-group on one of the interfaces of the router?

--Using ip igmp static-group on the router let this router join RP for this multicast group. It sends this multicast traffic trough this interface as if there is IGMP joined host.

3- Will it work?

-- I think it will.

Regards

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