Igmp Snooping - ZyXEL Communications XGS2220 Series User Manual

30/54-port gbe/sfp smart managed layer-3 switch

Table of Contents

The following table describes the labels in this screen.

Table 341 SWITCHING > Multicast > IPv4 Multicast Status

Multicast Group

79.29 IGMP Snooping

A Switch can passively snoop on IGMP packets transferred between IP multicast routers or switches and

IP multicast hosts to learn the IP multicast group membership. It checks IGMP packets passing through it,

picks out the group registration information, and configures multicasting accordingly. IGMP snooping

allows the Switch to learn multicast groups without you having to manually configure them.

The Switch forwards multicast traffic destined for multicast groups (that it has learned from IGMP

snooping or that you have manually configured) to ports that are members of that group. IGMP

snooping generates no additional network traffic, allowing you to significantly reduce multicast traffic

passing through your Switch.

Click SWITCHING > Multicast > IGMP Snooping to display the screen as shown.

Chapter 79 Networked AV Mode

This is the index number of the entry.

This field displays the multicast VLAN ID.

This field displays the port number that belongs to the multicast group.

This field displays IP multicast group addresses.

XGS2220 Series User's Guide