Administrator Guide

The following is a list of the Dell Networking OS version history for this command.
Version Description
9.9(0.0) Introduced on the C9010 and C1048P.
Usage Information
Use this command to make the port extender offline and run offline diagnostics tests. After this command is
issued, a warning message appears cautioning you about bringing down all the protocols and turning down the PE
unit operationally during the diagnostics tests. If offline diagnostics are not run after issuing the offline
stack-unit command, you must issue the online stack-unit command to bring up the PE stack-unit.
Dell#offline stack-unit 3
Warning - offline of unit will bring down all the protocols and the unit
will be operationally down, except for running Diagnostics. Please make sure
that stacking is not configured for Diagnostics execution. If configured,
the unit roles may change. The unit will become standalone once diags are
executed. Also reboot/online command is necessary for normal operation after
the offline command is issued. Proceed with Offline [confirm yes/no]:
Related
Commands
• diag — run diagnostic tests on an offline switch.
• online–brings a PE stack-unit back online after running offline diagnostic tests.
online
Bring a PE stack-unit back to an online state after running the offline diagnostics tests.
C9000 Series
Syntax
online stack—unit unit-number
Parameters
stack-unit unit-
number
Enter the keyword stack-unit and specify the stack-unit number. The stack-unit
number range is from 0 to 7.
Defaults none
Command Modes EXEC Privilege
Command History
This guide is platform-specific. For command information about other platforms, see the relevant Dell Networking
OS Command-Line Reference Guide.
The following is a list of the Dell Networking OS version history for this command.
Version Description
9.9(0.0) Introduced on the C1048P.
Example
Dell#diag stack-unit 3 level0 verbose no-reboot
Warning - diagnostic execution will cause multiple link flaps on the peer
side - advisable to shut directly connected ports
Warning - It is highly recommended to reboot the system after Offline
Diagnostics
Proceed with Diags [confirm yes/no]: yes
Dell#Jun 25 05:15:14: %PE-UNKN-C1048P:3 %DIAGAGT-6-DA_DIAG_STARTED: Starting
diags on stack-unit 3
14:19:49 : Approximate time to complete the Diags (level0)... 2 Mins
Related
Commands
• diag — run diagnostic tests on an offline switch.
• offline — places the stack-unit in the offline state to run the diagnostics tests.
1206 PE Console Commands