Rv:
Robustness Variable. The Robustness Variable allows tuning for the expected packet loss on a network. The allowed
range is 1 to 255; default robustness variable 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; default query interval is 125 seconds.
QRI:
Query Response Interval. The Max Response Time used to calculate the Max Resp Code inserted into the periodic General
Queries. The allowed range is 0 to 31744 in tenths of seconds; default query response interval is 100 in tenths of seconds
(10 seconds).
LLQI (LMQI for IGMP):
Last Member Query Interval. The Last Member Query Time is the time value represented by the Last Member Query
Interval, multiplied by the Last Member Query Count. The allowed range is 0 to 31744 in tenths of seconds; default last
member query interval is 10 in tenths of seconds (1 second).
URI:
Unsolicited Report Interval. The Unsolicited Report Interval is the time between repetitions of a host's initial report of
membership in a group. The allowed range is 0 to 31744 seconds, default unsolicited report interval is 1 second.
Buttons:
Save – Click to save changes.
Reset – Click to undo any changes made locally and revert to previously saved values.
Refresh, |<<, >>:
You can click "Refresh" to refresh the displayed table starting from the "VLAN" input fields. Or click “|<<” to update the
table starting from the first entry in the VLAN table, i.e. the entry with the lowest VLAN ID or click “>>“ to update the
table, starting with the entry after the last entry currently displayed.
3.5.3 Port Group Filtering
The section describes how to set the IGMP Port Group Filtering. In some network Application environments, like
metropolitan or multiple-dwelling unit (MDU) installations, a user might want to control the multicast groups to which
a user on a switch port can belong. It allows the user to control the distribution of multicast services, such as IP-TV,
based on some type of subscription or service plan.
With this feature, you can filter multicast joins on a per-port basis by configuring IP multicast profiles and associating
them with individual switch ports. An IGMP profile can contain one or more multicast groups and specifies whether
access to the group is permitted or denied. If an IGMP profile denying access to a multicast group is applied to a switch
port, the IGMP join report requesting the stream of IP multicast traffic is dropped, and the port is not allowed to receive
IP multicast traffic from that group. If the filtering action permits access to the multicast group, the IGMP report from
the port is forwarded for normal processing.
IGMP filtering controls only IGMP membership join reports and has no relationship to the function that directs the
forwarding of IP multicast traffic.
Web Interface
To configure the IGMP Snooping Port Group in the web interface:
1. Click Configuration, IGMP Snooping, Port Group Filtering
2. Click Add new Filtering Group
3. Set the Port to enable the Port Group Filtering.
4. Specify the Filtering Groups in the blank field.
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LANCOM GS-2310P/GS-2326(P) User Manual
3 Configuration
