Specifications

IP Switching Commands
monitor event-trace (global)
ISW-106
Cisco IOS IP Switching Command Reference
May 2008
Command History
Usage Guidelines Use the monitor event-trace command to enable or disable event tracing and to configure event trace
parameters for Cisco IOS software subsystem components.
Note Event tracing is intended for use as a software diagnostic tool and should be configured only under the
direction of a Technical Assistance Center (TAC) representative. In Cisco IOS software images that do
not provide subsystem support for the event trace function, the monitor event-trace command is not
available.
The Cisco IOS software allows the subsystem components to define whether support for event tracing is
enabled or disabled by default. The command interface for event tracing allows users to change the
default two ways: using the monitor event-trace command in privileged EXEC mode or using the
monitor event-trace command in global configuration mode.
Additionally, default settings do not show up in the configuration file. If the subsystem software enables
event tracing by default, the monitor event-trace component enable command will not show up in the
configuration file of the networking device; however, disabling event tracing that has been enabled by
default by the subsystem will create a command entry in the configuration file.
Note The amount of data collected from the trace depends on the trace message size configured using
the monitor event-trace command for each instance of a trace.
To determine whether you can enable event tracing on a subsystem, use the monitor event-trace ?
command to get a list of software components that support event tracing.
To determine whether event tracing is enabled by default for the subsystem, use the show monitor
event-trace command to display trace messages.
Examples The following example shows how to enable event tracing for the interprocess communication (IPC)
subsystem component in Cisco
IOS software and configure the size to 4096 messages. The trace
messages file is set to ipc-dump in slot0 (flash memory).
configure terminal
!
monitor event-trace ipc enable
monitor event-trace ipc dump-file slot0:ipc-dump
monitor event-trace ipc size 4096
Release Modification
12.0(18)S This command was introduced.
12.2(8)T This command was integrated into Cisco IOS Release 12.2(8)T.
12.2(25)S This command was integrated into Cisco IOS Release 12.2(25)S.
12.2(28)SB This command was integrated into Cisco IOS Release 12.2(28)SB and
implemented on the Cisco 10000 series routers.
12.2(33)SRA This command was integrated into Cisco IOS Release 12.2(33)SRA.
12.2(33)SXH This command was integrated into Cisco IOS Release 12.2(33)SXH.