ZyXEL Communications MES-2110 manual Igmp Status, MVR Overview, 127

Chapter 17 IGMP

Table 47 Configuration > IGMP Menu > IGMP VLAN Query Mode (continued)

LABEL	DESCRIPTION
Apply	Click Apply to save your changes to the MES-2110’s run-time
	memory. The MES-2110 loses these changes if it is turned off or
	loses power, so use the Save Settings link in the navigation
	panel to save your changes to the non-volatile memory when you
	are done configuring.
IGMP VLAN	This column displays the configured VLANs.
Query Mode	This column displays the whether the VLAN’s query mode is Auto
	or Disable.

17.3 IGMP Status

Click Configuration > IGMP Menu > IGMP Group Status to display the screen as shown. This screen shows the multicast group information. See Section 17.1 on page 123 for more information on multicasting.

Figure 56 Configuration > IGMP Menu > IGMP Group Status

The following table describes the labels in this screen.

Table 48 Configuration > IGMP Menu > IGMP Group Status

LABEL	DESCRIPTION
No	This is the index number of the entry.
Multicast Group	This field displays IP multicast group addresses.
VLAN ID	This field displays the multicast VLAN ID.
Port	This field displays the port number that belongs to the multicast group.

17.4 MVR Overview

Multicast VLAN Registration (MVR) is designed for applications (such as Media-on- Demand (MoD)) that use multicast traffic across an Ethernet ring-based service provider network.

MVR allows one single multicast VLAN to be shared among different subscriber VLANs on the network. While isolated in different subscriber VLANs, connected devices can subscribe to and unsubscribe from the multicast stream in the multicast VLAN. This improves bandwidth utilization with reduced multicast traffic in the subscriber VLANs and simplifies multicast group management.

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