Ruijie RG-S2900G-E Series, Configuration Manual

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Configuration Guide IGMP Snooping Configuration
Ruijie multicast products support both the layer 2 multicast(IGMP Snooping) function and the layer 3
multicast(Multicast-routing) function. That is to say, to realize better packet forwarding function, Ruijie
device supports not only the layer 3 multicast route forwarding, but also the snooping in the VLAN.
Port Types
As shown in the Figure-2, the Router is connected with the multicast source, enable the IGMP
Snooping on the SwitchA, HostA and HostC are the receive host(that is, the IP multicast group
member)
Figure-2 IGMP Snooping Port Type
Multicast Router Port: the switch is connected with the multicast router(the Layer3 multicast
device), take the SwitchA interface Eth0/1 for example. All router ports on the switch(including
the dynamic and static ports) are recorded in the router port list. By default, the router port
corresponds to the recipient of the multicast data in the VLAN, and can also be added to the
IGMP Snooping forwarding list.
Member Port: the abbreviation of the IP multicast group member port, also named Listener Port,
representing the port connected with the IP multicast group member on the switch, take the
SwitchA interface Eth0/2, Eth0/3 and Eth0/4 for example. All member ports on the
switch(including the dynamic and static ports) are recorded in the IGMP Snooping forwarding
list.
Aging Timer for Dynamic Ports
Table-1 Aging timer on the IGMP Snooping on the Dynamic Port
Type Description
Timer Trigger
Event
Timeout Action