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4.6.7

Multicast/IGMP Snooping

Multicasting is a form of limited broadcast. UDP is used to send datagrams to all hosts that belong to what

is called a "host group." A host group is a set of zero or more hosts identified by the same destination IP

address. The following statements apply to host groups.

Anyone can join or leave a host group at will.

b. There are no restrictions on a host's location.

There are no restrictions on the number of members that may belong to a host group.

d. A host may belong to multiple host groups.

Non-group members may send UDP datagrams to the host group.

Multicasting is useful when data needs to be sent to more than one other device. For instance, if one device

is responsible for acquiring data that many other devices need, then multicasting is a natural fit. Note that

using multicasting as opposed to sending the same data to individual devices uses less network bandwidth.

To enable Multicasting, from the Home screen, click Advanced and under Advanced, select Muliticast.

Figure 16-1 illustrates a typical Multicast configuration.

The apply button will temporarily save this connection. To make the change permanent you need to click

on Tools (at the top of the page) and select System Commands. At the system commands page, click on

Save All.

To enable IGMP Snooping , click Advanced and under Advanced, select IGMP Snooping. Figure 16 -2

illustrates a typical IGMP Snooping configuration.

Figure 16-1 (Multicast)

AAM6030BI User Manual