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2 - 32 ONline Ethernet 10BASE-FL Installation and Operation Guide
Implementing Total Backbone Fault Tolerance
You can add a backup ONline System Concentrator to provide total
backbone fault tolerance and link redundancy for your backbone network.
As shown in Figure 2-11, if the primary concentrator or any primary links
fail, the backup concentrator takes over. In this configuration:
One port on the 10BASE-FL Modules connects to the primary
concentrator.
The other port connects to the backup concentrator.
You must also have a direct connection between the two concentrators
Figure 2-11. Total Backbone Fault-Tolerant Configuration
Redundancy
Enabled
Redundancy
Enabled
Redundancy Disabled
Primary
Fiber
Link
Backup
Fiber
Link
(Remote Failure Signaling
enabled for port 4 on each
10BASE-FL Module)