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Cisco Bug: CSCul81352 - MST instance 0 interface stuck in DSG BLK state

Last Modified

May 14, 2018

Products (1)

  • Cisco ASR 9000 Series Aggregation Services Routers

Known Affected Releases


Description (partial)


On PVRST to MST config rollback it is observed that bundle interface for 

instance 0 is stuck in DSG BLK state even for the root bridge. However 

instance 1 bundle interfaces are in correct DSG FW state


The issue is seen on IOS-XR 5.1.0 when PVRST to MST config rollback is performed.
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