i3 International S81, User Manual

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IPMC Profile Address Configuration Parameters:
Items Description
Delete Click to delete the entry. The designated entry will be deleted during the next save.
Entry Name The name used for indexing the address entry table. Each entry has the unique name which is
composed of a maximum 16 alphanumeric characters. At least one letter must be present.
Start Address The starting IPv4/IPv6 Multicast Group Address that will be used as an address range.
End Address The ending IPv4/IPv6 Multicast Group Address that will be used as an address range.
IGMP Snooping
This function is used to establish the multicast groups to forward the multicast packet to the member ports, and, avoid
wasting the bandwidth while IP multicast packets are running over the network. This is because a switch that does
not support IGMP or IGMP Snooping cannot tell the multicast packet from the broadcast packet, so it can only treat them
all as the broadcast packet. Without IGMP Snooping, the multicast packet forwarding function is plain and identical from the
broadcast packet.
A switch supported b y IGMP Snooping with the functions of query and reporting can update the information of the
Multicast table when a member (port) joins or leaves an IP Multicast Destination Address. With this function, once a switch
receives an IP multicast packet, it will forward the packet to the members which had previously joined the specified IP
multicast group.
The packets will be discarded by the IGMP Snooping if the user transmits multicast packets to the multicast group that had
not been built in advance. IGMP mode enables the switch to issue IGMP function that is enabled for IGMP proxy or
snooping on the switch, which connects to a router closer to the root of the tree. This interface is the upstream interface. The
router on the upstream interface should be running IGMP.
To configure the IGMP Snooping in the web interface:

Click Configuration / IPMC / IGMP Snooping, / Basic Configuration

Select enable or disable the Global configuration.

Select which port is to become a Router Port or enable / disable the fast Leave function.

Set the Throttling parameter.

Click Apply and click the Save icon in the upper right corner to save the setting or click Reset to cancel the
setting. It will revert to previously saved values.