Tip Problem Solution
6 The network connection is not working properly.
Try the following procedures:
• For the indicated port, verify both ends of the
cabling, at the switch and the connected device,
are connected properly.
• Verify that the connected device and switch are
both powered on and operating correctly.
• Verify that you have used the correct cable type
for the connection:
◦ For twisted-pair connections to the fixed
10/100 or 10/100/1000 ports, if the port is
configured to “Auto” (auto negotiate), either
straight-through or crossover cables can be
used. This allowance is because of the
switch’s “Aruba Auto-MDIX” feature and the
Auto MDI/MDI-X feature of the 10/100/1000-T
port.
NOTE: If the switch port
configuration is changed to one
of the fixed configuration
options (for example, 100 Mbps/
Full Duplex), then the port
operates as MDI-X only and you
must use the correct type of
cable for the connection. In
general, for connecting an end
node (MDI port) to the switch,
use straight-through cable; for
connecting to MDI-X ports on
hubs, other switches, and
routers, use crossover cable.
◦ For fiber-optic connections, verify that the
transmit port on the switch is connected to
the receive port on the connected device, and
the switch receive port is connected to the
transmit port on the connected device.
• For 1000Base-T connections, verify that the
network cabling complies with the IEEE 802.3ab
standard. Install the cable according to the
ANSI/TIA/EIA-568-A-5 specifications. Ensure
that cable testing complies with the stated
limitations for Attenuation, Near-End Crosstalk,
Far-End Crosstalk, Equal-Level Far-End
Crosstalk (ELFEXT), Multiple Disturber ELFEXT,
and Return Loss.
Table Continued
72 Aruba 2930M Switches
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