Siemens X-400 Redundant Linking of Network Segments, Redundant linking of two subnets

Introduction to Industrial Ethernet Switches

1.2.4Redundant 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.

SCALANCE X414-3E	SCALANCE X414-3E
RM

1000	S7-200
Mbit/s
S7-300
SCALANCE	10/100
X-414-3E	Mbit/s
	S7-400

SCALANCE

X-414-3E

1000

Mbit/s

SCALANCE

X-414-3E

RM

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.

Operating Instructions for SCALANCE X-400 Industrial Ethernet Switches	19
C79000-G8976-C186-03