Hirschmann MS30, Power MICE, MACH 4000, OCTOPUS, User Manual

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Traffic control
Layer 2 Enhanced with Layer 2 Professional
Release 1.0 10/05
8.2 Multicast application
107
8.2.2 Example of a multicast application
The cameras for machine surveillance normally transmit their images to
monitor located in the machine room and in the monitoring room.
In a IP transmission, a camera sends its image data with a multicast address
over the network.
To prevent the many images from slowing down the entire network, the
Switch uses the GMRP to distribute multicast address information. As a
result, those images with a multicast address are only distributed to those
ports that are connected to the associated monitors for surveillance.
Fig. 33: Example: Video surveillance in machine rooms
1st floor
Control room
2nd floor
MICE
h H h H h H
MICE
h H h H h H