IBM 4002AC2, Инструкция по установке и эксплуатации

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Troubleshooting network connections
v For the indicated port, verify that both ends of the cabling (at the device and the
connected device) are snug.
v Verify that the device and the connected device are both powered on and
operating correctly.
v
Verify that you have used the correct cable type for the connection:
– For twisted-pair connections to an end node, use straight-through cabling.
– For fiber-optic connections, verify that the transmit port on the device is
connected to the receive port on the connected device, and that the receive
port on the device is connected to the transmit port on the connected device.
v Verify that the port has not been disabled through a configuration change. You
can use the CLI. If you have configured an IP address on the device, you also
can use IronView Network Manager.
v For copper ports, you can test the cable using Virtual Cable Testing (VCT). Refer
to “Monitoring Hardware Components” in the
FastIron and TurboIron 24X
Configuration Guide .
v
If the other procedures don’t resolve the problem, try using a different port or a
different cable.
Support for digital optical monitoring
You can configure your device to monitor optical transceivers in the system, either
globally or by specified port. When this feature is enabled, the system monitors the
temperature and signal power levels for the optical transceivers in the specified
ports. Console messages and syslog messages are sent when optical operating
conditions fall below or rise above the SFP+ or SFP manufacturer recommended
thresholds. For more information about digital optical monitoring, refer to the
FastIron and TurboIron 24X Configuration Guide .
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IBM x-series of Ethernet Switches Installation and User Guide