Limiting Syslog Messages Sent To The History Table And To Snmp; Enabling The Configuration-Change Logger - Cisco WS-C2960-24LC-S Software Configuration Manual

Configuring System Message Logging

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
on page
Beginning in privileged EXEC mode, follow these steps to change the level and history table size
defaults. This procedure is optional.
Command
Step 1
configure terminal
Step 2 logging history level
Step 3 logging history size number
Step 4 end
Step 5
show running-config
Step 6 copy running-config startup-config
1. Table 25-3 lists the level keywords and severity level. For SNMP usage, the severity level values increase by 1. For example, emergencies
equal 1, not 0, and critical equals 3, not 2.
When the history table is full (it contains the maximum number of message entries specified with the
logging history size global configuration command), the oldest message entry is deleted from the table
to allow the new message entry to be stored.
To return the logging of syslog messages to the default level, use the no logging history global
configuration command. To return the number of messages in the history table to the default value, use
the no logging history size global configuration command.

Enabling the Configuration-Change Logger

You can enable a configuration logger to keep track of configuration changes made with the
command-line interface (CLI). When you enter the logging enable configuration-change logger
configuration command, the log records the session, the user, and the command that was entered to
change the configuration. You can configure the size of the configuration log from 1 to 1000 entries (the
default is 100). You can clear the log at any time by entering the no logging enable command followed
by the logging enable command to disable and reenable logging.
Catalyst 2960 Switch Software Configuration Guide
25-10
25-9) are stored in the history table even if syslog traps are not enabled.
Purpose
Enter global configuration mode.
1
Change the default level of syslog messages stored in the history file and
sent to the SNMP server.
See Table 25-3 on page 25-9
By default, warnings, errors, critical, alerts, and emergencies messages
are sent.
Specify the number of syslog messages that can be stored in the history
table.
The default is to store one message. The range is 0 to 500 messages.
Return to privileged EXEC mode.
Verify your entries.
(Optional) Save your entries in the configuration file.
Chapter 25 Configuring System Message Logging
for a list of level keywords.
Table 25-3
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