User's Manual

prevents the switch from broadcasting the traffic to all ports and possibly affecting
network performance.
The switch maintains a map that shows which links need which IP multicast streams. The
switch forwards multicast traffic only to the links that requested them and cuts multicast
traffic from links that do not contain a multicast listener. Essentially, IGMP snooping
helps optimize multicast performance at Layer 2 and is especially useful for
bandwidth-intensive IP multicast applications such as IPTV.
Customize IGMP Snooping
By default, IGMP snooping is enabled. You can customize the settings for your network.
To customize IGMP snooping:
1. Connect your computer to the same network as the switch.
You can use a WiFi or wired network connection, or connect directly to a switch that
is off-network using an Ethernet cable.
2. Launch a web browser.
3.
In the address field of your web browser, enter the IP address of the switch.
If you do not know the IP address of the switch, see Access the Switch Using a Web
Browser on page 16.
The login window opens.
4. Enter the switch password.
The default password is password. The password is case-sensitive.
The Switch Information page displays.
5.
Select System > Multicast.
6.
Make sure that the IGMP Snooping Status Enable radio button is selected.
By default, the Enable radio button is selected.
7.
In the VLAN ID Enabled for IGMP Snooping field, enter a VLAN ID between 1 and
4094.
User Manual49Manage Network Settings
Gigabit Ethernet Smart Managed Plus Switches