User Guide

Configuring Switching
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GS716Tv3, GS724Tv4, and GS748Tv5 Smart Switches
3. Configure the IGMP snooping values for the selected ports or LAGs:
• Admin Mode. Select the interface mode for the selected interface for IGMP snooping
for the switch from the menu. The default is Disable.
• Host Timeout. Specify the amount of time you want the switch to wait for a report for
a particular group on a particular interface before it deletes that interface from the
group. Enter a value between 2 and 3600 seconds. The default is 260 seconds.
• Max Response Time. Specify the amount of time you want the switch to wait after
sending a query on an interface because it did not receive a report for a particular
group on that interface. Enter a value greater or equal to 1 and less than the Host
Timeout, in seconds. The default is 10 seconds.
• MRouter Timeout. Specify the amount of time you want the switch to wait to receive
a query on an interface before removing it from the list of interfaces with multicast
routers attached. Enter a value between 0 and 3600 seconds. The default is 0
seconds. A value of zero indicates an infinite time-out; no expiration.
• Fast Leave Admin Mode. Select the Fast Leave mode for a particular interface from
the menu. The default is Disable.
4. Click the Apply button.
IGMP Snooping Table
Use the IGMP Snooping Table screen to view all of the entries in the Multicast Forwarding
Database that were created for IGMP snooping.
 To view the entries in the IGMP snooping table:
1. Select Switching > Multicast > IGMP Snooping > IGMP Snooping Table.
2. Next to Search By MAC Address, specify the MAC Address whose MFDB table entry you
want to view.
Enter six two-digit hexadecimal numbers separated by colons, for example
00:01:23:43:45:67.
The following table describes the information in the IGMP snooping table.
Table 33. IGMP snooping table information
Field Description
MAC Address A multicast MAC address for which the switch has forwarding
and/or filtering information. The format is 6 two-digit hexadecimal
numbers that are separated by colons, for example,
01:00:5e:45:67:89.
VLAN ID A VLAN ID for which the switch has forwarding and filtering
information.
Type This displays the type of the entry. Static entries are those that are
configured by the end user. Dynamic entries are added to the table
as a result of a learning process or protocol.