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Simple ring topology (smaller systems)

In a simple configuration, CI52x modules can be part of a ring if MRP (or DLR) protocol is used in the managed switches. Then the CI52x are connected from one to another device (“daisy chained") through e.g. two network switches. The redundancy protocol detects a closed ring and opens one port of a managed switch to avoid the ring. The user has to configure the necessary ring configurations and enable the ring manager for the used ring ports in one switch.

It is recommended that time interval between ETH cable disconnection and re-connection should be greater than 2-3 seconds.

Fig. 333: Redundant ring topology with 2 MRP switches (avoids a SPOF (Single Point Of Failure))
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