Siemens SCALANCE XB-200 Configuration Manual page 226

Configuring with Web Based Management
5.5 The "Layer 2" menu
Reducing network load
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).
● Active dynamic assignment of addresses by GMRP frames.
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.
Dependency on the "Base bridge mode"
The displayed boxes depend on which "Base bridge mode" is set. If you change the "Base
bridge mode" the existing entries are lost.
Figure 5-9
Figure 5-10
226
Base bridge mode: 802.1Q VLAN Bridge
Base bridge mode: 802.1D transparent bridge
SCALANCE XB-200/XC-200/XP-200 Web Based Management
Configuration Manual, 07/2016, C79000-G8976-C360-04