Multicast - Billion BiPAC 7700N User Manual

Multicast

Multicast is one of the three network transmission modes, Unicast, Multicast, Broadcast. It is a
transmission mode that supports point-to-multipoint connections between the sender and the
recipient. IGMP protocol is used to establish and maintain the relationship between IP host and the
host directly connected multicast router.
IGMP stands for Internet Group Management Protocol is a communications protocols used to
manage the membership of Internet Protocol multicast groups. IGMP is used by IP hosts and the
adjacent multicast routers to establish multicast group members. There are three versions for IGMP,
that is IGMPv1, IGMPv2 and IGMPv3.
IGMP
Default Version: enter the supported IGMP version, 1-3, default is IGMP v3.
Query Interval: enter the periodic query interval time (sec) the multicast router sending the query
message to hosts to understand the group membership information.
Query Response Interval: enter the response interval time (sec).
Last Member Query Interval: enter the interval time (sec) the multicast router query the specified
group after it has received leave message.
Robustness Value: enter the router robustness parameter, 2-7, the greater the robustness value,
the more robust the Querier is.
Maximum Multicast Groups: enter the Maximum Multicast Groups.
Maximum Multicast Data Sources( for IGMP v3): enter the Maximum Multicast Data Sources,1-24.
Maximum Multicast Group Members: enter the Maximum Multicast Group Members.
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