Installing and Administering HP FDDI/9000 Software

58 Chapter 4
Troubleshooting HP FDDI/9000
Diagnostic Flowcharts
Flowchart 1 Procedures
A. Series 800: Self-test fail; Ring Op; Signal Detect.
During normal operation when the adapter is
connected in an operational FDDI ring, the self-test
should be off and the other LEDs should be glowing
(Dual Attach FDDI has two signal detect LEDs).
During power up or while using fddiinit, self-test will
turn on briefly and the Ring Op will turn off, then
self-test will turn off and Ring Op will turn on. If signal
detect is off, the cables are not connected properly or
the card failed completely. If Ring Op is off, either the
card has not downloaded properly, or the FDDI ring is
not operating. Go to B.
B. Verify: MIC connectors solidly connected. Without
powering down the system, make sure the MIC
connectors on your fiber-optics cable match the keyed
connectors on the adapter and concentrator (or wall
plug) and are solidly connected. Go to C.
C. Verify: Connection to concentrator “M” port and
concentrator is UP. If using a concentrator, make
sure that your FDDI cable is fully connected to the
concentrator M port and that the concentrator state is
UP. Follow the instructions in your concentrator
manual to check the concentrator state.Go to D.
D. Execute: fddinet <dev file>. Execute fddinet on the
device file of your FDDI adapter to display all the
active stations on the FDDI ring. For example, if
/dev/lan1 is the device file corresponding to your FDDI
adapter, enter:
fddinet /dev/lan1
If the MAC address of the destination station is not
listed, it is not attached to the FDDI network. If so,
inform your network administrator about the problem
with the destination station.
If an error message is displayed on the screen instead
of the logical ring map, proceed to Flowchart 2. For
detailed information on the fddinet command, refer to
the manpage. Go to E.