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Page 86
LGB5028A User‘s Manual
724-746-5500 | blackbox.com
Chapter 6: Configuration
Snooping Enabled: Enable the per-VLAN MLD Snooping. Select up to 32 VLANs.
MLD Querier: A router sends MLD Query messages onto a particular link. This router is called the querier. Enable the MLD
querier in the VLAN.
Compatibility: Compatibility is maintained by hosts and routers taking appropriate actions depending on the versions of MLD
operating on hosts and routers within a network. Select from MLD-Auto, Forced MLDv1, Forced MLDv2,. The default
compatibility value is MLD-Auto.
Rv: Show Robustness Variable. The Robustness Variable allows tuning for the expected packet loss on a network. The allowed
range is 1 to 255; the default value is 2.
QI: Query interval. The query interval is the interval between general queries sent by the querier. The allowed range is 1 to 31744
seconds; the default query interval is 125 seconds.
QRI: Query Response Interval. The maximum response delay used to calculate the maximum response code inserted into the
periodic general queries. The allowed range is 0 to 31744 in tenths of seconds; the default query response interval is 100 in tenths
of seconds (10 seconds).
LLQI (LMQI for IGMP): Show Last Listener Query Interval. The Last Listener Query Interval is the maximum response delay used
to calculate the maximum response code inserted into multicast address-specific queries sent in response to Version 1 multicast
listener done messages.
It is also the maximum response delay used to calculate the maximum response code inserted into multicast address and source-
specific query messages. The allowed range is 0 to 31744 in tenths of seconds. The default last listener query interval is 10 in
tenths of seconds (1 second).
URI: Show the Unsolicited Report Interval. The Unsolicited Report Interval is the time between repetitions of a node's initial report
of interest in a multicast address. The allowed range is 0 to 31744 seconds; the default unsolicited report interval is 1 second.
Upper right icon (Refresh, <<, >> ): Click “Refresh” to refresh the IGMP Group Status by manual; use “<<” and “>>” to go
to the next/previous page or entry.
Buttons:
Save: Click to save changes.
Reset: Click to undo any changes made locally and revert to previously saved values.
6.6.3 Port Group Filtering
The section describes how to set the Port Group Filtering in the MLD Snooping function. Via the UI, you can add new filtering
groups and safety policies.
Web Interface
To configure the MLD Snooping Port Group Configuration in the Web interface:
1. Click “Configuration,” “MLD Snooping,” “Port Group Filtering Configuration.”
2. Click “Add new Filtering Group.”
3. Specify the Filtering Groups with entries per page.
4. Click the “Save” button to save the setting.
5. To cancel the setting, click the “Reset” button. It will revert to previously saved values.
