Configuring System Message Logs
Step 5
Step 6
Synchronizing Log Messages
You can synchronize unsolicited messages and debug privileged EXEC command output with solicited device
output and prompts for a specific console port line or virtual terminal line. You can identify the types of
messages to be output asynchronously based on the level of severity. You can also configure the maximum
number of buffers for storing asynchronous messages for the terminal after which messages are dropped.
When synchronous logging of unsolicited messages and debug command output is enabled, unsolicited device
output appears on the console or printed after solicited device output appears or is printed. Unsolicited messages
and debug command output appears on the console after the prompt for user input is returned. Therefore,
unsolicited messages and debug command output are not interspersed with solicited device output and prompts.
After the unsolicited messages appear, the console again displays the user prompt.
This task is optional.
Command or Action
Device(config)# logging file
flash:log_msg.txt 40960 4096 3
end
Example:
Device(config)# end
terminal monitor
Example:
Device# terminal monitor
System Management Configuration Guide, Cisco IOS XE Amsterdam 17.2.x (Catalyst 9500 Switches)
Synchronizing Log Messages
Purpose
• filename Enters the log message
filename.
• (Optional) max-file-size
maximum logging file size. The range is
4096 to 2147483647. The default is 4096
bytes.
• (Optional) min-file-size Specifies the
minimum logging file size. The range is
1024 to 2147483647. The default is 2048
bytes.
• (Optional) severity-level-number |
type Specifies either the logging severity
level or the logging type. The severity
range is 0 to 7.
Returns to privileged EXEC mode.
Logs messages to a nonconsole terminal during
the current session.
Terminal parameter-setting commands are set
locally and do not remain in effect after the
session has ended. You must perform this step
for each session to see the debugging messages.
Specifies the
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