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kusridha
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Level 1

Question

  1. Does DCM send out periodic unsolicited join information during multicast stream receiving?
  2. If DCM stops receiving certain multicast stream, will it still send out periodic unsolicited join message for this stream?

Answer

The DCM will send out an unsolicited Multicast join message once (when enabling a Multicast), and then starts replying on the router’s IGMP queries. If the Multicast is not being received, it will not send out unsolicited IGMP messages, it will only keep on replying to incoming queries. Only when the GbE port goes down completely (port disable mode = full link), it will send out a join message when it comes back up.

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