C-71
Troubleshooting
Viewing Switch Configuration and Operation
CLI: Viewing More Information on Switch Operation
Use the following commands to display additional information on switch
operation for troubleshooting purposes.
Syntax: show boot-history
Displays the crash information saved for each management
module on the switch (see “Displaying Saved Crash
Information” in the “Redundancy (Switch 8212zl)” chapter).
See also “Example of Traceroute Failing to Reach the
Destination Address” on page C-64.
show history
Displays the current command history. This command output
is used for reference or when you want to repeat a command
(see “Repeating a Command” in the “Using the Command Line
Interface (CLI)” chapter)
show system-information
Displays globally configured parameters and information on
switch operation (see “CLI: Viewing and Configuring System
Information” in the “Interface Access and System Information”
chapter).
show version
Displays the software version currently running on the switch,
and the flash image from which the switch booted (primary or
secondary). For more information, see “Displaying
Management Information” in the “Redundancy (Switch
8212zl)” chapter.
show interfaces
Displays information on the activity on all switch ports (see
“CLI: Viewing Port Status and Configuring Port Parameters”
in the “Port Status and Configuration” chapter).
show interfaces-display
Displays the same information as the show interfaces command
and dynamically updates the output every three seconds. Press
Ctrl + C to stop the dynamic updates of system information.
Use the Arrow keys to view information that is off the screen.
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