CHAPTER
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Cisco NX-OS System Messages Reference
OL-15994-03
1
Introduction to System Messages
This chapter describes system messages, as defined by the syslog protocol (RFC 3164). It describes how
to understand the syslog message format and how to capture system messages for review.
Note The Error Message Decoder (EMD) tool does not support the system messages contained in this book.
For the most current information about system messages, refer to the messages in
Chapter 2, “System
Messages and Recovery Procedures.”
This chapter includes the following sections:
• System Log Message Format, page 1-1
• Capturing System Messages and History, page 1-5
• Displaying Information about System Errors, page 1-5
System Log Message Format
System log messages begin with a percent sign (%) and are displayed in the following formats:
• syslog Format on a Resident Device, page 1-1
• syslog Format on a Remote-Logging Server, page 1-3
syslog Format on a Resident Device
The format for a resident syslog is as follows:
month dd hh:mm:ss switchname FACILITY-severity-MNEMONIC description
or
month dd hh:mm:ss switchname FACILITY-SLOTnumber-severity-MNEMONIC description
or
month dd hh:mm:ss switchname FACILITY-STANDBY-severity-MNEMONIC description
For example:
Nov 1 14:07:58 excal-113 %MODULE-5-MOD_OK: Module 1 is online
Nov 1 14:07:58 excal-113 %PORT-3-IF_UNSUPPORTED_TRANSCEIVER: Transceiver for interface
fc1/13 is not supported
.
Table 1-1 describes the syslog elements.
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