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Hardware Diagnostic Tests
■ All green for one second
■ All off except for the Health LED and any activity LEDs.
See “Diagnosing With the LEDs” on page 25 for information on interpreting the LED patterns
and LED behaviors.
Checking Console Messages
Useful diagnostic messages may be displayed on the console screen when the switch is reset.
As described in the “(Optional) Connect a Console to the Switch” on page 11 section, connect
a PC running a VT-100 terminal emulator program or a standard VT-100 terminal to the switch’s
Console Port and configure it to run at 9600 baud, and with the other terminal communication
settings. Then, when you reset the switch, note the messages that are displayed. Additionally,
you can check the switch event log, which can be accessed from the console using the show
log command, or from the console Main Menu.
Testing Twisted-Pair Cabling
Network cables that fail to provide a link or provide an unreliable link between the switch and
the connected network device may not be compatible with the IEEE 802.3 Type 10Base-T,
100Base-TX, or 1000Base-T standards. The twisted-pair cables attached to the Switch must be
compatible with the appropriate standards. To verify your cable is compatible with these
standards, use a qualified cable test device.
Testing Switch-to-Device Network Communications
You can perform the following communication tests to verify the network is operating correctly
between the switch and any connected device that can respond correctly to the communication
test.
■ Link Test -- a physical layer test that sends IEEE 802.2 test packets to any device identified
by its MAC address.
■ Ping Test -- a network layer test used on IP networks that sends test packets to any device
identified by its IP address.
These tests can be performed through the switch console interface from a terminal connected
to the switch or through a Telnet connection, or from the switch’s web browser interface. For
more information, see the Management and Configuration Guide for the Series 6120
Switches, which is on the HP Web site at www.hp.com/go/bladesystem/documentation.
These tests can also be performed from an SNMP network management station running a
program that can manage the switch, for example, ProCurve Manager.
Testing End-to-End Network Communications
Both the switch and the cabling can be tested by running an end-to-end communications test
-- a test that sends known data from one network device to another through the switch. For
example, if you have two PCs on the network that have LAN adapters between which you can
run a link-level test or Ping test through the switch, you can use this test to verify that the entire
communication path between the two PCs is functioning correctly. See your LAN adapter
documentation for more information on running a link test or Ping test.
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