Lantronix
SM24TBT2DPA and SM24TBT2DPB Web User Guide
2-11.1.3 Port Filtering Profile
This page lets you set IGMP Port Group Filtering parameters. In some network Application environments,
such as 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 lets you 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 Configuration in the web interface:
1. Click Configuration, IPMC, IGMP Snooping, Port Group Filtering
2. Click Add new Filtering Group
3. Scroll the Port to enable the Port Group Filtering. Specify the Filtering Groups in the blank field.
4. Click Apply to save the setting
5. To cancel the settings click the Reset button. The page will revert to previously saved values.
Figure 2-11.1.3: IGMP Snooping Port Filtering Profile Configuration page
Parameter descriptions:
Port:
The logical port for the settings.
Filtering Profile:
Select the IPMC Profile as the filtering condition for the specific port. A summary of the
designated profile is displayed by clicking the view (
) button.