ZyXEL Communications MSC1000G User Manual page 188

Management switch card

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Chapter 8 Multicast Screens

Figure 112 IGMP Setup

The following table describes the labels in this screen.

Table 75 IGMP Setup

IGMP Version

Select Enable_IGMP_Snooping to have the system passively learn multicast groups.

Select Enable_IGMP_Proxy to have the system proxy multicast traffic.

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

Select which version of IGMP you want the system to support.

With IPv4, select IGMPv2 or IGMPv3. If you select IGMPv2, the system discards IGMPv3

packets. This provides better security if none of the devices in the network use IGMPv3. If

you select IGMPv3, the system recognizes both IGMPv2 and IGMPv3.

With IPv6, select MLDv1 or MLDv2. If you select MLDv1, the system discards MLDv2

packets. This provides better security if none of the devices in the network use MLDv2. If you

select MLDv2, the system recognizes both MLDv1 and MLDv2.

Select Enable to enable IGMP fast leaving. In IPTV applications, this feature allows user to

quickly change video channels and enhances the user experience. See

for more information.

Select Disable to turn this feature off.

Specify the time duration (0~256 seconds) the device requires to switch between two video

Type the number for an IGMP proxy VLAN and click Apply to add a static VLAN on which the

system sends IGMP query messages. This should be the number of a subscriber VLAN. The

VLAN will appear in the Static Query VID Table. You must configure the system's VLAN

settings before you can set static query VIDs.

Section 8.1.5 on page

Management Switch Card User's Guide

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