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Cisco Bug: CSCvh95474 - [Mystique] 3way-P, PRE shutdown after a switch due to an anomalous AVS set by the PSM

Last Modified

Sep 29, 2019

Products (1)

  • Cisco Network Convergence System 1000 Series

Known Affected Releases


Description (partial)


Acting with a an switch admin operation on a NCS1K-PSM module within a 3-way protection schema, may happens that the remote PSM move its TX VOA in AVS mode hence shutting down the line.

PSM with a 3-way protection schema, the Path-Protection configuration paths.
Admin switch commands may be: "hw-module slot <> manual-switch-to" or a psm configuration "lockout-from".
The issue may be present in a 5 to 7% of cases.
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Bug Details Include

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