Tip
Problem
Solution
The cable verification process must include all
patch cables from any end devices, including the
switch, to any patch panels in the cabling path.
• Verify the port has not been disabled through a
switch configuration change.
You can use the console interface, or, if you
have configured an IP address on the switch,
use the web browser interface or IMC network
management software to determine the state of
the port and re-enable the port if necessary.
• Verify the switch port configuration matches the
configuration of the attached device. For
example, if the switch port is configured as
“Auto”, the port on the attached device also
MUST be configured as “Auto”. Depending on
the port type, twisted-pair or fiber-optic, if the
configurations don’t match, the results could be a
very unreliable connection, or no link at all.
• If the other procedures don’t resolve the
problem, try using a different port or a different
cable.
6
The port or remote link partner may be improperly
configured, or the port may be in a “blocking” state
by the normal operation of protocols, such as
Spanning Tree, LACP, or GVRP features.
• You must ensure that the device at the other end
of the connection indicates a good link to the
switch. If it does not, the problem may be with
the cabling between the devices, the connectors
on the cable, or the configuration of the device
on the remote end of the cable.
• Use the switch console to see if the port is part
of a dynamic trunk (through the LACP feature) or
to see if Spanning Tree is enabled on the switch,
and to see if the port may have been put into a
“blocking” state by those features. The show lacp
command displays the port status for the LACP
feature; the show spanning-tree command
displays the port status for Spanning Tree.
Check the Port Status using the
show
interfaces
command to confirm whether the
port is configured as “disabled”.
Other switch features that may affect the port
operation include VLANs and IGMP. Use the
switch console to see how the port is configured
for these features.
For software troubleshooting tips, see the
"Troubleshooting" chapter in the latest version of
the
Management and Configuration Guide
for
54
Aruba 2930F Switch Series Installation and Getting Started
Guide
