Configuring with Web Based Management
5.5 The "Layer 2" menu
SCALANCE XB-200 Web Based Management
166 Configuration Manual, 04/2015, C79000-G8976-C360-02
Groups
Multicast applications
In the majority of cases, a frame is sent with a unicast address to a particular recipient. If an
application sends the same data to several recipients, the amount of data can be reduced by
sending the data using one multicast address. For some applications, there are fixed
multicast addresses (NTP, IETF1 Audio, IETF1 Video etc.).
In contrast to unicast frames, multicast frames represent a higher load for the device.
Generally, multicast frames are sent to all ports. The following options are available for
reducing the load caused by multicast frames:
● Static entry of the addresses in the multicast filter table.
● Dynamic entry of the addresses by listening in on IGMP parameter assignment frames
(IGMP Configuration).
The result of all these methods is that multicast frames are sent only to ports for which an
appropriate address is entered.
The "Multicast" menu item, shows the multicast frames currently entered in the filter table
and their destination ports that the user set in the parameters.
Configuring multicast addresses
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