Cisco Systems 3750

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Catalyst 3750, 3560, 3550, 2975, 2970, and 2960 Switch System Message Guide

OL-8551-04

Chapter 3 Message and Recovery Procedures

ETHCNTR Messages

Error Message ETHCNTR-3-HALF_DUX_COLLISION_EXCEED_THRESHOLD: Collision at [chars]

exceed threshold. Consider as loop-back.

Explanation The collisions at a half-duplex port exceeded the threshold, and the port is treated as a

loopback. On switches that support Power over Ethernet (PoE), this message might be displayed

when a device that can be powered by either a PoE switch port or by AC power is not being powered

by an external AC power source and is connected to a port that has been configured with the power

inline never interface configuration command. [chars] is the port where the threshold was exceeded.

Recommended Action On switches that support PoE, remove the device or configure the port by

entering the power inline auto, shutdown, and no shutdown interface configuration commands.

No action is required on non-PoE switches. The port goes into error-disabled mode until the problem

is resolved.

Error Message ETHCNTR-3-INTERNAL_ERROR: Internal Error [chars].

Note This message applies only to Catalyst 3550 switches.

Explanation An internal error occurred when the software was trying to program the hardware. As a

result, the switch is in an inconsistent state and might not provide the expected functions. [chars]

describes the internal operation that failed.

Recommended Action Find out more about the error by using the show tech-support privileged

EXEC command and by copying the error message exactly as it appears on the console or system

log and entering it in the Output Interpreter tool. Us e the Bug Toolkit to look for similar reported

problems. For more information about these online tools and abo ut contacting Cisco, see the “Error

Message Traceback Reports” section on page 2-7 for more information.

Error Message ETHCNTR-3-INVALIDMAP: Invalid map [dec] for address [enet].