Cisco Cisco Nexus 3064-T Switch Troubleshooting Guide
inconsistency is resolved. The listed spanning tree instance is that of the native VLAN id of the
listed interface.
Recommended Action Verify that the configuration of the native VLAN id is consistent on
the interfaces on each end of the 802.1Q trunk connection. Once corrected, spanning tree will
automatically unblock the interfaces as appropriate.
listed interface.
Recommended Action Verify that the configuration of the native VLAN id is consistent on
the interfaces on each end of the 802.1Q trunk connection. Once corrected, spanning tree will
automatically unblock the interfaces as appropriate.
Error Message
STP-2-BLOCK_PVID_PEER: Blocking [chars] on [chars]. Inconsistent peer vlan.
Explanation The spanning tree port associate with the listed spanning tree instance and
interface will be held in spanning tree blocking state until the port VLAN Id (PVID)
inconsistency is resolved. The listed spanning tree instance is that of the native VLAN id of
interface on the peer switch to which the listed interface is connected.
Recommended Action Verify that the configuration of the native VLAN id is consistent on
the interfaces on each end of the 802.1Q trunk connection. Once corrected, spanning tree will
automatically unblock the interfaces as appropriate.
Error Message
STP-2-BRIDGE_ASSURANCE_BLOCK: Bridge Assurance blocking port [chars] [chars].
Explanation BPDUs were not received from a neighboring switch on the interface that has
spanning tree Bridge Assurance configured. As a result, the interface was moved to the
spanning tree Blocking state
Recommended Action LOG_STD_NO_ACTION
Error Message
STP-2-BRIDGE_ASSURANCE_UNBLOCK: Bridge Assurance unblocking port [chars]
[chars].
Explanation The interface listed in the message has been restored to normal spanning tree
state after receiving BPDUs from the neighboring L2 switch/bridge
Recommended Action LOG_STD_NO_ACTION
Error Message
STP-2-DISPUTE_CLEARED: Dispute resolved for port [chars] on [chars].
Explanation The listed interface has stopped receiving Inferior BPDUs with designated role
and state as learning and/or forwarding. The Dispute has been resolved and if the port is still
designated, it will be taken out of the blocking state as and when appropriate.
Recommended Action LOG_STD_NO_ACTION
Error Message
STP-2-DISPUTE_DETECTED: Dispute detected on port [chars] on [chars].