ZyXEL Communications IES-708-22A - Manual (Page 127)

Chapter 14 xDSL Profiles Setup
IES-708-22A User’s Guide
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14.9 IGMP Filtering
This feature is available in STU-C mode only.
With the IGMP filtering feature, you can limit the multicast channel 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.
You can set the device to filter the multicast group join reports on a per-port basis by
configuring an IGMP filtering profile and associating the profile to a port.
14.10 IGMP Filter Profile Screen
An IGMP filtering profile specifies a range of multicast groups that clients connected to the
IES-708-22A are allowed to join. A profile contains a range of multicast IP addresses
(multicast groups) which you want clients to be able to join. Profiles are assigned to ports (in
the xDSL Port Setting screen). Clients connected to those ports are then permitted to join the
multicast groups specified in the profile. Each port can be assigned a single profile only. A
profile can be assigned to multiple ports.
The DEFVAL IGMP filter profile is assigned to all of the DSL ports by default. It allows a
port to join all multicast IP addresses (224.0.0.0~239.255.255.255). If you want to allow a
DSL subscriber access to only specific IGMP multicast groups, use the IGMP Filter Profile
screen to configure a different profile and then assign it to the subscriber’s DSL port in the
XDSL Port Setting screen (see
Section 13.5.1 on page 105 ).
To open this screen, click Basic Setting > xDSL Profiles Setup > IGMP Filter Profile.
The top of the screen displays the configured IGMP filter profiles. Use the bottom part of the
screen (with the Add and Cancel buttons) to add or edit alarm profiles.
Span This field displays whether or not the alarm profile is assigned to this port as the
alarm profile for the whole span. It displays V if it is assigned, and it displays - if
it is not assigned. Click - to assign this profile to the port for the whole span.
Close Click Close to close this screen.
Table 27 Basic Setting > xDSL Profiles Setup > Alarm Profile > Map (continued)
LABEL DESCRIPTION