Siemens X-400 ユーザーズマニュアル

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Introduction to Industrial Ethernet Switches 
Operating Instructions for SCALANCE X-400 Industrial Ethernet Switches 
C79000-G8976-C186-03 
19
1.2.4  Redundant Linking of Network Segments 
The example of redundant linking of two network segments as shown here is pos-
sible only when linking between X414 because the standby function of the X414 is 
required. 
 
RM
RM
S7-200
S7-300
S7-400
SCALANCE
  X-414-3E
SCALANCE
  X-414-3E
SCALANCE
  X-414-3E
Mbit/s
10/100
SCALANCE X414-3E
SCALANCE X414-3E
 1000 
Mbit/s
 1000 
Mbit/s
 
Figure 1-6 
Redundant linking of two subnets 
In this case, network segments are rings with a redundancy manager (RM). The 
rings can also be interrupted at one point (linear topology).  
For a redundant link as shown in the figure, two devices must be configured within 
a network segment. This configuration is set in Web Based Management, Com-
mand Line Interface or using SNMP access. For more detailed information, refer to 
the Configuration Manual SCALANCE X-400 Industrial Ethernet Switches.