Reference Guide

1576 | S-Series Debugging and Diagnostics
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Defaults
None
Command Modes
EXEC Privilege
Command
History
offline stack-unit
s
Place a stack unit in the offline state.
Syntax
offline stack-unit number
Parameters
Defaults
None
Command Mode
EXEC Privilege
Command
History
H
Related
Commands
H
Usage
Information
You cannot enter this command on a Master or Standby unit.
The system reboots when the off-line diagnostics complete. This is an automatic process. A warning
message appears when the offline stack-unit command is implemented.
Warning - Diagnostic execution will cause stack-unit to reboot after
completion of diags.
Proceed with Offline-Diags [confirm yes/no]:y
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 (e.g., 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 is 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 loop back mode, and test packets are transmitted
through those components. These diagnostics also perform snake tests using VLAN
configurations. You must physically remove the unit from the stack to test 10G links.
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”
Version 8.3.1.0 Introduced the verbose option.
Version 7.7.1.0 Introduced on S-Series
number
Enter the stack unit number.
Range: 0 to 7
Version 8.2.1.0 Added warning message to off-line diagnostic
Version 7.7.1.0 Introduced on S-Series
show environment (S-Series) View S-Series system component status (for example, temperature, voltage).