Excluding multicast groups
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If all of the C-RPs and static RPs (if any) in a domain are configured to exclude some multicast groups or ranges of groups, multicast traffic for such groups will be dropped when received by a DR, and will not be forwarded to any RP. (Such groups will still be switched locally if IGMP is enabled on the VLAN where the excluded group traffic is received from a multicast traffic source.)
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