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Cisco ME 3400 EthernetAccess Switch SoftwareConfiguration Guide
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Chapter26 Configuring System Messa ge Logging Configuring System Message Logging
Table26-3 describes the level keywords. It also lists the corresponding U NIX sysl og definition s from
the most severe level to the least severe level.
The software generates four other categories of messages:
•Error messages about software or hardware malfunctions, dis play ed at levels wa rnings through
emergencies. These types of messages mean that the functionality of the switch is affected. For
information on how to recover from these malfunctions, see the system message guide for this
release.
•Output from the debug commands, displayed at the debugging level. Debug commands are
typically used only by the Technical Assistance Center.
•Interface up or down transitions and system restart messages, displ ayed a t the no tifications level.
This message is only for information; switch functionality is not affected.
Limiting Syslog Messages Sent to the History Table and to SNMP
If you enabled syslog message traps to be sent to an SNMP network management station by using the
snmp-server enable trap global configuration command, you can change the level of messages sent and
stored in the switch history table. You also can change the number of messages that are stored in the
history table.
Messages are stored in the history table because SNMP traps are not guaranteed to reach their
destination. By default, one message of the level warning and numerically lower levels (see Table26-3
on page 26-9) are stored in the history table even if syslog traps are not enabled.
Beginning in privileged EXEC mode, follow these steps to change the level and history table size
defaults. This procedure is optional.
Table26-3 Message Logging Level Keywords
Level Keyword Level Description Syslog Definition
emergencies 0 System unstable LOG_EMERG
alerts 1 Immediate action needed LOG_ALERT
critical 2 Critical conditions LOG_CRIT
errors 3 Error conditions LOG_ERR
warnings 4 Warning conditions LOG_WARNING
notifications 5 Normal but significant condition LOG_NOTICE
informational 6 Informational messages only LOG_INFO
debugging 7 Debugging messages LOG_DEBUG
Command Purpose
Step1 configure terminal Enter global configuration mode.
Step2 logging history level1Change the default level of syslog messages stored in the history file and
sent to the SNMP server.
See Table26-3 on page 26-9 for a list of level keywords.
By default, warnings, errors, critical, alerts, and emergencies messages
are sent.