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Table Of Contents
L Commands
This chapter describes the system management commands that begin with L.
logging abort
To discard the pending changes to the syslog server configuration, use the logging abort command.
logging abort
Syntax Description
This command has no arguments or keywords.
Command Default
None
Command Modes
Global configuration mode
Command History
Examples
This example shows how to discard the changes made to the syslog server configuration:
switch(config)# logging distributeswitch(config)# logging abortswitch(config)#Related Commands
logging commit
To commit the pending changes to the syslog server configuration for distribution to the switches in the fabric, use the logging commit command.
logging commit
Syntax Description
This command has no arguments or keywords.
Command Default
None
Command Modes
Global configuration mode
Command History
Examples
This example shows how to commit the distribution of the syslog server configuration:
switch(config)# logging distributeswitch(config)# commitswitch(config)#Related Commands
logging distribute
Enables the distribution of the syslog server configuration to network switches using the CFS infrastructure.
show logging status
Displays the logging status.
logging console
To enable logging messages to the console session, use the logging console command. To disable logging messages to the console session, use the no form of this command.
logging console [severity-level]
no logging console
Syntax Description
Command Default
None
Command Modes
Global configuration mode
Command History
Examples
This example shows how to enable logging messages with a severity level of 4 (warning) or higher to the console session:
switch# configure terminalswitch(config)# logging console 4Related Commands
logging distribute
To enable the distribution of the syslog server configuration to network switches using the Cisco Fabric Services (CFS) infrastructure, use the logging distribute command. To disable the distribution, use the no form of this command.
logging distribute
no logging distribute
Syntax Description
This command has no arguments or keywords.
Command Default
Distribution is disabled.
Command Modes
Global configuration mode
Command History
Examples
This example shows how to enable the distribution of the syslog server configuration:
switch(config)# logging distributeswitch(config)#This example shows how to disable the distribution of the syslog server configuration:
switch(config)# no logging distributeswitch(config)#Related Commands
logging event
To log interface events, use the logging event command. To disable logging of interface events, use the no form of this command.
logging event port {link-status | trunk-status} {default | enable}
no logging event port {link-status | trunk-status} {default | enable}
Syntax Description
Command Default
None
Command Modes
Global configuration mode
Command History
Examples
This example shows how to log interface events:
switch# configure terminalswitch(config)# logging event link-status defaultRelated Commands
logging event port
To log events on an interface, use the logging event port command. To disable logging of interface events, use the no form of this command.
logging event port {link-status | trunk-status} [default]
no logging event port {link-status | trunk-status}
Syntax Description
Command Default
None
Command Modes
Interface configuration mode
Command History
Examples
This example shows how to log interface events:
switch# configure terminalswitch(config)# interface ethernet 1/1switch(config-if)# logging event port link-status defaultRelated Commands
show interface
Displays the interface configuration information.
show logging
Displays the logging status.
logging ip access-list cache
To configure the Optimized ACL Logging (OAL) parameters, use the logging ip access-list cache command. To reset to the default settings, use the no form of this command.
logging ip access-list cache {{entries num_entries} | {interval seconds} | {threshold num_packets}}
no logging ip access-list cache {{entries num_entries} | {interval seconds} | {threshold num_packets}}
Syntax Description
Defaults
None
Command Modes
Global configuration
Supported User Rolesnetwork-admin
Command History
Usage Guidelines
This command does not require a license.
Examples
This example shows how to to specify the maximum number of log entries that are cached in the software:
switch# configure terminalswitch(config)# logging ip access-list cache entries 200switch(config)#This example shows how to specify the maximum time interval before an entry is sent to the system log:
switch# configure terminalswitch(config)# logging ip access-list cache interval 350switch(config)#This example shows how to specify the number of packet matches before an entry is sent to the system log:
switch# configure terminalswitch(config)# logging ip access-list cache threshold 125switch(config)#Related Commands
logging level
To enable logging messages from a defined facility that have the specified severity level or higher, use the logging level command. To disable logging messages from a defined facility, use the no form of this command.
logging level facility severity-level
no logging level facility severity-level
Syntax Description
facility
Facility. The facilities are listed in Table A-1 of "System Message Logging Facilities."
To apply the same severity level to all facilities, use the all facility.
severity-level
Number of the desired severity level at which messages should be logged. Messages at or numerically lower than the specified level are logged. Severity levels are as follows:
•
0—emergency: System unusable
•
•
•
•
•
•
•
Command Default
None
Command Modes
Global configuration mode
Command History
Examples
This example shows how to enable logging messages from the AAA facility that have a severity level of 2 or higher:
switch(config)# logging level aaa 2Related Commands
logging logfile
To configure the name of the log file used to store system messages and the minimum severity level to log, use the logging logfile command. To disable logging to the log file, use the no form of this command.
logging logfile logfile-name severity-level [size bytes]
no logging logfile [logfile-name severity-level [size bytes]]]
Syntax Description
Command Default
None
Command Modes
Global configuration mode
Command History
Examples
This example shows how to configure a log file called logfile to store system messages and set its severity level to 4:
switch(config)# logging logfile logfile 4Related Commands
logging module
To enable module log messages, use the logging module command. To disable module log messages, use the no form of this command.
logging module [severity-level]
no logging module
Syntax Description
Command Default
None
Command Modes
Global configuration mode
Command History
Usage Guidelines
Set a specified severity level or use the default.
Examples
This example shows how to enable module log messages:
switch(config)# logging moduleRelated Commands
logging monitor
To enable the device to log messages to the monitor (terminal line), use the logging monitor command. To disable monitor log messages, use the no form of this command.
logging monitor [severity-level]
no logging monitor
Syntax Description
Command Default
None
Command Modes
Global configuration mode
Command History
Usage Guidelines
This configuration applies to Telnet and Secure Shell (SSH) sessions.
Examples
This example shows how to enable monitor log messages:
switch(config)# logging monitorRelated Commands
logging server
To configure a remote syslog server at the specified hostname or IPv4/IPv6 address, use the logging server command. To disable the remote syslog server, use the no form of this command.
logging server host [severity-level] [facility {auth | authpriv | cron | daemon | ftp | kernel | local0 | local1 | local2 | local3 | local4 | local5 | local6 | local7 | lpr | mail | news | syslog | user | uucp}| use-vrf {vrf_name | management}]
no logging server host [severity-level] [facility {auth | authpriv | cron | daemon | ftp | kernel | local0 | local1 | local2 | local3 | local4 | local5 | local6 | local7 | lpr | mail | news | syslog | user | uucp}| use-vrf {vrf_name | management}]
Syntax Description
host
Hostname or IPv4/IPv6 address of the remote syslog server.
severity-level
(Optional) Number of the desired severity level at which messages should be logged. Messages at or numerically lower than the specified level are logged. Severity levels are as follows:
•
•
•
•
•
•
•
•
facility facility
(Optional) Specifies the outgoing facility. The facilities are listed in Table A-1 of "System Message Logging Facilities."
The default outgoing facility is local7.
vrf vrf_name
(Optional) Specifies the virtual routing and forwarding (VRF) to be used in the remote server. The name can be a maximum of 32 alphanumeric characters.
management
Specifies the management VRF. This is the default VRF.
Command Default
The default outgoing facility is local7.
The default VRF is management.Command Modes
Global configuration mode
Command History
Examples
This example shows how to configure a remote syslog server at a specified IPv4 address, using the default outgoing facility:
switch(config)# logging server 192.168.2.253This example shows how to configure a remote syslog server at a specified hostname with severity level 5 or higher:
switch(config)# logging server syslogA 5Related Commands
logging timestamp
To set the logging time-stamp units, use the logging timestamp command. To reset the logging time-stamp units to the default, use the no form of this command.
logging timestamp {microseconds | milliseconds | seconds}
no logging timestamp {microseconds | milliseconds | seconds}
Syntax Description
Command Default
None
Command Modes
Global configuration mode
Command History
Usage Guidelines
By default, the units are seconds.
Examples
This example shows how to set the logging time-stamp units to microseconds:
switch(config)# logging timestamp microsecondsRelated Commands