2-79
Cisco Catalyst Switch Module 3110 and 3012 for IBM BladeCenter System Message Guide
OL-12191-01
Chapter 2 Message and Recovery Procedures
SPANTREE Messages
Error Message SPAN-3-UNKN_ERR: An internal error occurred during a SPAN operation.
Explanation SPAN detected an error in its internal operation.
Recommended Action The error might be transient. Try the SPAN operation again. If a second attempt
also fails, reload the switch by using the reload privileged EXEC command to complete the
operation.
Error Message SPAN-3-UNKN_ERR_PORT: An internal error occurred when configuring SPAN
on port [chars].
Explanation SPAN detected an error in its internal operation. [chars] is the interface.
Recommended Action The error might be transient. Try the SPAN operation again. If the second
attempt also fails, reload the switch by using the reload privileged EXEC command to complete the
operation.
SPANTREE Messages
This section contains the spanning-tree messages.
Error Message SPANTREE-2-BLOCK_BPDUGUARD: Received BPDU on port [chars] with BPDU
Guard enabled. Disabling port.
Explanation A bridge protocol data unit (BPDU) was received on an interface that has the spanning
tree BPDU guard feature enabled. As a result, the interface was administratively shut down. [chars]
is the interface name.
Recommended Action Either remove the device sending BPDUs, or disable the BPDU guard feature.
The BPDU guard feature can be locally configured on the interface or globally configured on all
ports that have PortFast enabled. To disable BPDU guard on an interface, use the no spanning-tree
bpduguard enable interface configuration command. To disable BPDU guard globally, use the no
spanning-tree portfast bpduguard default global configuration command. After you have
removed the device or disabled BPDU guard, re-enable the interface by entering the no shutdown
interface configuration command.
Error Message SPANTREE-2-BLOCK_BPDUGUARD_VP: Received BPDU on port [chars], vlan
[dec] with BPDU Guard enabled. Disabling vlan.
Explanation A bridge protocol data unit (BPDU) was received on the interface and VLAN specified
in the error message. The spanning tree BPDU guard feature was enabled and configured to shut
down the VLAN. As a result, the VLAN was placed in the error-disabled state. [chars] is the
interface, and [dec] is the vlan.
Recommended Action Either remove the device sending BPDUs, or disable the BPDU guard feature.
The BPDU guard feature can be locally configured on the interface or globally configured on all
ports that have Port Fast enabled. Re-enable the interface and vlan by entering the clear errdisable
privileged EXEC command.