ZyXEL Communications IES-708 Betriebsanweisung PDF herunterladen (Seite 153)

Chapter 18 IGMP

IES-708-22A User’s Guide

153

18.6 IGMP Filter Setup Screen

This feature is available in STU-C mode only.

To open this screen, click Advanced Application > IGMP > Filter Setup. This screen is

discussed in Section 14.9 on page 119.

18.7 IGMP Count Screen

This feature is available in STU-C mode only.

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.

To open this screen, click Advanced Application > IGMP > Count Setup.

IGMP Mode (STU-R mode only)

Select Enable to have the device use IGMP snooping.

Select Disable to have the device not use IGMP snooping.

(STU-C mode only)

Select Proxy to have the device use IGMP proxy.

Select Snooping to have the device passively learn multicast groups.

Select Disable to have the device not use either IGMP proxy or snooping.

Apply Click Apply to save your IGMP mode settings.

Clicking Apply saves your changes to the IES-708-22A’s volatile memory. The

IES-708-22A loses these changes if it is turned off or loses power, so use the

Config Save link on the navigation panel to save your changes to the non-

volatile memory when you are done configuring.

Table 39 Advanced Application > IGMP > IGMP Setup (continued)

LABEL DESCRIPTION

1 2 ... 148 149 150 151 152 153 154 155 156 157 158 ... 447 448

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