User Manual

5 Configuration D-Link Web Smart Switch User Manual
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the moment the last host leaves a group and when the multicast server is notified that there are no more
members. It also allows adjustments for controlling the frequency of IGMP traffic on a subnet. Default is 10
seconds.
Querier State: D-Link Smart Switch is able to send out the IGMP Queries to check the status of multicast
clients. Default is disabled.
To enable IGMP snooping for a given VLAN, select enable and click on the Apply button. Then press the
Edit button under Router Port Setting, and select the ports to be assigned as router ports for IGMP
snooping for the VLAN. Press Apply for changes to take effect. A router port configured manually is a Static
Router Port, and a Dynamic Router Port is dynamically configured by the Switch when a query control
message is received.
Figure 73 – Configuration > IGMP Snooping > IGMP Router port Settings
To view the Multicast Entry Table for a given VLAN, press the View button.
Figure 74 – Configuration > IGMP Multicast Entry Table
Configuration > Multicast Filtering Mode
The Multicast Filtering Mode function allows users to select the filtering mode for IGMP group per VLAN
basis.
Forward All Groups: The multicast stream will be flooded to all ports of the VLAN for both registered and
unregistered groups.
Forward Unregistered Groups: The multicast stream will be forwarded based on the register table in
registered group, but it will be flooded to all ports of the VLAN in unregistered group.
Filter Unregistered Groups: The registered group will be forwarded based on the register table and the
unregister group will be filtered.
Figure 75 – Configuration > Multicast Filtering Mode
Configuration > Port Mirroring
Port Mirroring is a method of monitoring network traffic that forwards a copy of each incoming and/or
outgoing packet from one port of the Switch to another port, where the packet can be studied. This enables
network managers to better monitor network performances.