A port is stuck in STP blocking state with BLK*(Type_Inc).
Possible Cause
A type inconsistency might exist on an access port when it is connected to a trunk port on the other end. The port becomes BLK*(Type_Inc) to indicate that there is an incorrect configuration on the link. Use the following commands to confirm the details of the STP port state for the port:
•show spanning-tree interface <id> detail
•show spanning-tree interface <id>
Solution
Check the switch port modes configured at both ends (ports) of the link. Ensure that they are in the same mode. Both should be in access or trunk mode. Once the modes are synchronized, the port moves out of the inconsistency state.
Possible Cause
A type inconsistency might exist on an access port when it is connected to a trunk port on the other end. The port becomes BLK*(Type_Inc) to indicate that there is an incorrect configuration on the link. Use the following commands to confirm the details of the STP port state for the port:
•show spanning-tree interface <id> detail
•show spanning-tree interface <id>
Solution
Check the switch port modes configured at both ends (ports) of the link. Ensure that they are in the same mode. Both should be in access or trunk mode. Once the modes are synchronized, the port moves out of the inconsistency state.
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