PT-7728 User’s Manual Featured Functions
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Static Multicast MAC
Some devices may only support multicast packets, but not support either IGMP Snooping or
GMRP. The PT-7728 supports adding multicast groups manually to enable multicast filtering.
Enabling Multicast Filtering
Use the serial console or Web interface to enable or disable IGMP Snooping and IGMP querying.
If IGMP Snooping is not enabled, then IP multicast traffic is always forwarded, flooding the
network.
Configuring IGMP Snooping
IGMP Snooping provides the ability to prune multicast traffic so that it travels only to those end
destinations that require that traffic, thereby reducing the amount of traffic on the Ethernet LAN.
IGMP Snooping Settings
IGMP Snooping Enable
Setting Description Factory Default
Enable/Disable Click the checkbox to enable the IGMP Snooping
function globally.
Disabled
IGMP Snooping Enhanced Mode
Setting Description Factory Default
Enable IGMP Multicast packets will be forwarded to:
y Auto-Learned Multicast Querier Ports
y Member Ports
Enable
Disable IGMP Multicast packets will be forwarded to:
y Auto-Learned Multicast Querier Ports
y Static Multicast Querier Ports
y Querier Connected Ports
y Member Ports
Query Interval
Setting Description Factory Default
Numerical value
input by user
This sets the query interval of the Querier function
globally. Valid settings are from 20 to 600 seconds.
125 seconds
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