Reference Guide

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 level2 to run a specific test case. Enclose the
test case name in double quotes (“ “). For example: diag stack-
unit 1 level1 testname “first”
.
Defaults none
Command Modes EXEC Privilege
Command History
This guide is platform-specific. For command information about other platforms, refer to the
relevant FTOS Command Line Reference Guide .
The following is a list of the FTOS version history for this command.
Version 8.3.19.0 Introduced on the S4820T.
Version 8.3.11.1 Introduced on the Z9000.
Version 8.3.7.0 Introduced on the S4810.
Version 8.3.1.0 Introduced the verbose option.
Version 7.7.1.0 Introduced on the S-Series.
offline stack-unit
Place a stack unit in the offline state.
S4820T
Syntax
offline stack-unit number
Parameters
number Enter the stack-unit number. The range is from 0 to 7.
Defaults none
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