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CrossFire 8730 Switch Installation Guide, DOC-7046 v. 1.2 Troubleshooting
5. If the switch is connected to a token-ring concentrator, perform the following
steps:
— Verify that the switch duplex setting matches the attached device.
— Verify that the concentrator is operating correctly.
— Verify that only one cable interconnects the two devices. In other words,
only one switch port should be connected to a port on the concentrator.
➽
Note: If a Token-Ring port is configured to “speed auto sense” mode, and is
connected to shared-media where there are no active stations, the port will not open
until another station becomes active and sets the ring speed. If necessary, this can
be avoided by configuring the port to “fixed speed” mode.
6. For each device that is having a communication problem, connect its segment
to another Token-Ring port on the switch. Try each of the remaining ports to
determine whether the problem will go away.
— If the problem goes away, the problem might be in the switch. Contact
your local Olicom representative.
— If the problem persists, continue with step 7.
7. The problem does not appear to be in the switch and the cables and devices
connected to the switch. The problem might be in the network applications or
other software running on the devices. See the software documentation for
software problem determination procedures, or consult your network
administrator for assistance.
Procedure E
Use this procedure if one device connected to a Fast Ethernet port is having a
communication problem. The ERR LED and the DIAG LEDs are off, and other
attached devices can communicate through the switch:
1. Check the port LEDs.
— If the port LINK LED is on, go to Step 2.
— If the port LINK LED is off, the port is probably disabled or is not wired
correctly. Go to Step 3.
2. If the LINK LED on the failing port is on, and the attached device still cannot
communicate, see the
menu for more information about port behaviour
and check the ACT LED:
— If it is blinking, check the
Fast Ethernet Port Configuration s
creen for
possible causes of failure. This screen is described in the
Содержание CrossFire 8730
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