Manage Multicast Traffic With Igmp Snooping - NETGEAR GS750E User Manual

48-Port Gigabit Ethernet Plus Switch with 2 SFP Ports Model GS750E
5. In the DHCP Mode menu, select Disable.
The IP Address, Subnet Mask, and Gateway Address fields are enabled.
6. Enter the IP address, subnet mask, and gateway address.
7. 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.
Manage Network Settings 47 User Manual