Cisco Catalyst 2950 - Appendix; System Messages; How to Read System Messages

B-1
Catalyst 2950 Desktop Switch Software Configuration Guide
78-11380-03
APPENDIX B
System Messages
This appendix describes the IOS system messages for the switch. The system software sends these error
messages to the console (and, optionally, to a logging server on another system) during operation. Not
all system messages indicate problems with your system. Some messages are purely informational, and
others can help diagnose problems with communications lines, internal hardware, or the system
software.
This appendix contains these sections:
• How to Read System Messages, page B-1
• Error Message Traceback Reports, page B-3
• Error Messages and Recovery Procedures, page B-3
How to Read System Messages
System messages begin with a percent sign (%) and are structured as follows:
%FACILITY-SUBFACILITY-SEVERITY-MNEMONIC: Message-text
• FACILITY is a code consisting of two or more uppercase letters that show the facility to which the
message refers. A facility can be a hardware device, a protocol, or a module of the system software.
Table B-1 lists the system facility codes.
.
Table B-1 Facility Codes
Code Facility
CHASSIS Chassis
CMP Cluster Membership Protocol
ENVIRONMENT Environment
GIGASTACK GigaStack GBIC
LINK Link
LRE_LINK LRE Link
MODULE Module
PORT SECURITY Port Security
RTD Runtime Diagnostic
STORM CONTROL Storm Control