Enabling And Disabling The Link Integrity Test - Sun Microsystems SPARCcenter 2000 Service Manual

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2.9 Enabling and Disabling the Link Integrity Test

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On any system board, if the eight yellow LEDs are off, the board is not
functioning. However, if all system boards show errors, a faulty common unit
is indicated. Candidates may be the control board, backplane, or power supply.
If the network hub does not use the 10BaseT Link Integrity Test, the system
may report "no carrier" and be unable to transmit. If this occurs, disable the
link integrity test (the default state for Sun equipment). This test can be
disabled or enabled on some SBus cards using a jumper. However, for
consistency in maintenance, disable the test using software commands below.
For a single network, disable the command. At the ok prompt enter the
following:
ok false set-tpe-test
For a system connected to two or more networks, program the system NVRAM
using statements of the type below:
ok false " <Ethernet-node1-pathname>" " set-tpe-test" execute-device-method drop
ok false " <Ethernet-node2-pathname>" " set-tpe-test" execute-device-method drop
ok false " <Ethernet-node3-pathname>" " set-tpe-test" execute-device-method drop
(Repeat for additional nodes.)
If it becomes necessary to re-enable testing at the server, use the following
command.
ok true set-tpe-test
For more information, refer to the OpenBoot Command Reference.
SPARCcenter 2000/2000E Service Manual—June 1996