Table 4-5 Selected Openboot Prom On-Board Diagnostic Tests - Sun Microsystems Netra T4 AC100 Service And System Reference Manual

TABLE 4-5
Type of Test
test net
test-all
4.5.2.3
watch-clock
The watch-clock diagnostic displays the result as a seconds counter. During
normal operation, the seconds counter repeatedly increments from 0 to 59. Initialize
the watch-clock diagnostic by typing the watch-clock command at the ok
prompt.
The following code example identifies the watch-clock diagnostic output message.
CODE EXAMPLE 4-4
{0} ok watch-clock
Watching the 'seconds' register of the real time clock chip.
It should be 'ticking' once a second.
Type any key to stop.
4
4.5.2.4 watch-net and watch-net-all
The watch-net and watch-net-all diagnostics monitor Ethernet packets on the
Ethernet interfaces connected to the system. Good packets received by the system
are indicated by a period (.). Errors such as the framing error and the cyclic
redundancy check (CRC) error are indicated with an X and an associated error
description. Initiate the watch-net diagnostic is by typing the watch-net
command at the ok prompt and initiate the watch-net-all diagnostic by typing
the watch-net-all command at the ok prompt.
4-12 Netra T4 AC100/DC100 Service and System Reference Manual • August 2001
Selected OpenBoot PROM On-Board Diagnostic Tests
Description
Performs internal/external loopback
test of the system auto-selected
Ethernet interface.
Sequentially tests system-configured
devices containing selftest.
Watch-Clock Diagnostic Output Message
Preparation
An Ethernet cable must be
attached to the system and to an
Ethernet tap or hub. If the
Ethernet cable is not correctly
attached the external loopback
test will fail.
Tests are sequentially executed in
device-tree order (viewed with the
show-devs command).