Hirschmann RS20 User Manual

Network Load Control
126
8.2 Multicast Application
Basic Configuration
Release 6.0 07/2010
8.2.2 Example of a Multicast Application
The cameras for monitoring machines normally transmit their images to
monitors located in the machine room and to the control room.
In an IP transmission, a camera sends its image data with a Multicast
address via the network.
To prevent all the video data from slowing down the entire network, the
device uses the GMRP to distribute the Multicast address information. As a
result, the image data with a Multicast address is only distributed to those
ports that are connected to the associated monitors for surveillance.
Figure 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

Hirschmann RS20 Specifications

General

Mounting	DIN Rail
Operating Temperature	-40°C to +70°C
Protection Class	IP30
Switching Technology	Store-and-Forward
Product Type	Industrial Ethernet Switch
Port Details	10/100 Mbps Ethernet ports
Switching Capacity	3.2 Gbps
MAC Address Table	8k
Management	Web, SNMP
Redundancy	MRP
Ports	8 or 16