
Chapter 20 IGMP
IES-1248-51V User’s Guide
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The following table describes the labels in this screen.
20.10 IGMP Count Screen
Use this screen to limit the number of IGMP groups a subscriber on a port can join.
This allows you to control the distribution of multicast services (such as content
information distribution) based on service plans and types of subscription.
IGMP count is useful for ensuring the service quality of high bandwidth services
like video or Internet Protocol television (IPTV). IGMP count can limit how many
channels (IGMP groups) the subscriber connected to a DSL port can use at a time.
If each channel requires 4~5 Mbps of download bandwidth, and the subscriber’s
connection supports 11 Mbps, you can use IGMP count to limit the subscriber to
using just 2 channels at a time. This also effectively limits the subscriber to using
only two IPTVs with the DSL connection.
Table 42 IGMP Port Info
LABEL DESCRIPTION
Show Port Select a port for which you wish to view information.
Port This field shows each port number.
Group Count This is the total number of Group packets received on this port.
Query Count This is the total number of Query packets received on this port.
Join Count This is the total number of Join packets received on this port.
Leave Count This is the total number of Leave packets received on this port.
Clear Click Clear to delete the information the IES-1248-51V has learned
about multicast groups. This resets every counter in this screen.
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