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Catalyst 3750-X, 3750-E, 3560-X, and 3560-E Switch System Message Guide
OL-9772-05
Chapter 2 Message and Recovery Procedures
SPAN Messages
Explanation A stack member cannot support the SDM template that the stack master is using.
Switches in the SDM mismatch state are not functional stack members. This error follows the
STACKMGR-6-SWITCH_ADDED_SDM error message if it reports SDM_MISMATCH. [chars]
displays mismatch information and recommended corrective actions.
Recommended Action Downgrade the SDM template of the stack master to make it compatible with
the stack member switches. For example, if the stack master uses the aggregator routing template,
the message recommends downgrading the stack master to the desktop routing template by using the
sdm prefer vlan desktop global configuration command.
SPAN Messages
Error Message SPAN-3-MEM_UNAVAIL: Memory was not available to perform the SPAN
operation.
Explanation The system could not perform a SPAN operation because of a lack of memory.
Recommended Action Reduce other system activity to ease the memory demands.
Error Message SPAN-3-SESS_DEC_CFG: SPAN hardware resource is in use. [chars]
Explanation The system could not allocate a SPAN hardware resource for the feature specified in the
error message. It is possible that a distributed EtherChannel has been configured in the system that
is using a SPAN hardware resource.
Recommended Action Remove one or all of the distributed EtherChannels from the system and retry
the operation.
Error Message SPAN-3-SESS_HW_UNAVAIL: SPAN hardware resource not available [chars]
Explanation The system could not allocate a SPAN hardware resource for the feature specified in the
error message. A possible cause is that all SPAN source sessions are already in use. The system can
be configured with a maximum of two SPAN source sessions or one RSPAN source session. [chars]
is the unavailable resource.
Recommended Action Remove one of the existing SPAN or RSPAN source sessions, and retry the
operation.
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.
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