Reference Guide

alllevels Enter the keyword alllevels to display the complete set
of offline diagnostic tests.
interactive Enter the keyword interactive to display interactive diag
testcases.
level0 Enter the keyword level0 to display only the Level 0
diagnostic tests. 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 display only the Level 1
diagnostic tests. 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, ports are shut down automatically.
level2 Enter the keyword level2 to display only the Level 2
diagnostic tests. 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.
Defaults Display the complete set of offline diagnostic tests available at all levels.
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 C9010 and C1048P.
9.2(1.0) Introduced on the Z9500.
8.3.19.0 Introduced on the S4820T.
8.3.11.1 Introduced on the Z9000.
8.3.7.0 Introduced on the S4810.
8.3.1.0 Introduced the verbose option.
710
Debugging and Diagnostics