Cisco Catalyst 9500 User Manual

PurposeCommand or Action
Device(config)# logging file
• filename—Enters the log message
filename.
flash:log_msg.txt 40960 4096 3
• (Optional) max-file-size —Specifies the
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.end
Example:
Step 5
Device(config)# end
Logs messages to a nonconsole terminal during
the current session.
terminal monitor
Example:
Step 6
Terminal parameter-setting commands are set
locally and do not remain in effect after the
Device# terminal monitor
session has ended. You must perform this step
for each session to see the debugging messages.
Synchronizing Log Messages
You can synchronize unsolicited messages and debugprivileged 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.
System Management Configuration Guide, Cisco IOS XE Amsterdam 17.2.x (Catalyst 9500 Switches)
181
Configuring System Message Logs
Synchronizing Log Messages

Cisco Catalyst 9500 Specifications

General

Software	Cisco IOS XE
Energy Efficiency	Energy Efficient Ethernet (EEE)
Warranty	Limited Lifetime Hardware Warranty
Series	Catalyst 9500
Ports	Up to 48 ports (varies by model)
Power Supply	Redundant power supplies
Operating Temperature	0°C to 40°C
Weight	Up to 35 lbs (varies by model)
Memory	16 GB DRAM, 16 GB Flash
Modularity	Modular uplinks and power supplies
Security	Cisco TrustSec, MACsec
Redundancy	Power supply redundancy
Management	CLI, SNMP, NETCONF
Latency	Sub-microsecond