Users Guide

Parameters
number
Enter the stack-unit id.
alllevels Enter the keyword alllevels to run the complete set of offline
diagnostic tests.
level0 Enter the keyword level0 to run Level 0 diagnostics. Level 0
diagnostics check for the presence of various components and
perform essential path verifications. In addition, they verify the
identification registers of the components on the board.
level1 Enter the keyword Level1 to run Level 1 diagnostics. Level 1
diagnostics is a smaller set of diagnostic tests with support for
automatic partitioning. They perform status/self test for all the
components on the board and test their registers for appropriate
values. In addition, they perform extensive tests on memory
devices (for example, SDRAM, flash, NVRAM, EEPROM, and
CPLD) wherever possible. There are no tests on 10G links. At this
level, stack ports are shut down automatically.
level2 Enter the keyword level2 to run Level 2 diagnostics. Level 2
diagnostics are a full set of diagnostic tests with no support for
automatic partitioning. Level 2 diagnostics are used primarily for
on-board loopback tests and more extensive component
diagnostics. Various components on the board are put into
Loopback mode and test packets are transmitted through those
components. These diagnostics also perform snake tests using
VLAN configurations. To test 10G links, physically remove the
unit from the stack.
verbose Enter the keyword verbose to run the diagnostic in Verbose
mode. Verbose mode gives more information in the output than
Standard mode.
testname Enter the keyword testname to run a specific test case. Enclose
the test case name in double quotes (“ “). For example: diag
stack-unit 1 level1 testname “first”
. You can use
this option only for interactive tests.
no-reboot Enter the keyword no-reboot to prevent the system from
rebooting after the test. To bring the stack unit to online state,
use the online stack-unit stack-unit-number
command.
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.
Debugging and Diagnostics 659