Failing to Add ATM Connections into a Protection Group

After two connections are created, they cannot be added into a protection group. Hence, you need to configure the sink-source relation of the protection group.

Product

• OptiX OSN 1500A/1500B
• OptiX OSN 2500
• OptiX OSN 3500 II
• OptiX OSN 3500
• OptiX OSN 7500

Fault Type

Equipment_Interconnection_Fault

Symptom

After creating two connections, you fail to add them into the protection group.

Cause Analysis

• For 1+1 protection type:
  • In the case of source protection, the working and protection links must have the same sink but different sources.
  • In the case of sink protection, the working and protection links must have the same source but different sinks.
  • In the case of source + sink protection, the working and protection links must have different sinks and different sources.
• For 1:1 protection, the working and protection links must have different sinks and different sources.

Procedure

1. Determine the relation between the source and sink of the protection group. After changing the connections, add them into the protection group again.

Reference Information

None.

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