Procedure 5-104: Clear "RPR Topology Unstable" condition
Before you begin
Prior to performing this procedure:
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Refer to Before you begin and Required equipment in this chapter.
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Refer to Electrostatic discharge in Chapter 1, Safety.
Steps
Complete the following steps to clear the RPR Topology Unstable condition.
1 |
From the WaveStar® CIT System View, click the Alarm List button and locate the RPR Topology Unstable condition in the resulting alarm list and note the corresponding VCG AID. |
2 |
From the System View, select Reports → NE History Log. Then click Retrieve all and OK to obtain the NE History Log. |
3 |
Important! Multiple or repetitive RPR topology changes occurred whose duration exceeded the provisionable VCG Topology Stability Timer. RPR Topology changes include protection switches and adding/deleting nodes to/from the ring. Review the NE History Log for any multiple or repetitive RPR topology changes that affect the specified VCG. Using local procedures determine the cause of the RPR topology changes and clear any associated troubles. If required, increase the VCG RPR Protection Wait to Restore and/or Topology Stability Timer parameters using the Configuration → Equipment command. End of steps |