Manage Multicast Traffic With Igmp Snooping; Customize Igmp Snooping - NETGEAR GS750E User Manual

48-Port Gigabit Ethernet Smart Managed Plus Switch Model GS750E
7. Enter the switch's password in the Password field.
The switch's default password is password.
8. Click the APPLY button.
Your settings are saved.

Manage Multicast Traffic With IGMP Snooping

Internet Group Management Protocol (IGMP) snooping allows a switch to forward multicast traffic intelligently
on the switch. Multicast IP traffic is traffic that is destined to a host group. Host groups are identified by class
D IP addresses, which range from 224.0.0.0 to 239.255.255.255. Based on the IGMP query and report
messages, the switch forwards traffic only to the ports that request the multicast traffic. This feature 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
6.
The login window opens.
4. Enter the switch's password in the password field.
The switch's default password is password.
The Switch Information page displays.
Access the Switch Using a Web Browser
Manage Network Settings
14
on page