Communication Failures In The Neighboring Device Management Functionality; Neighboring Device Information Cannot Be Obtained By The Lldp Functionality - Alaxala AX6700S Troubleshooting Manual

3.16 Communication failures in the neighboring device management
functionality
3.16.1 Neighboring device information cannot be obtained by the LLDP
functionality
If neighboring device information cannot be obtained correctly by using the LLDP
functionality, isolate the cause of the problem according to the failure analysis method
described in the following table.
Table 3-72 Failure analysis method when the LLDP functionality is used
No. Items to check and commands
1 Execute the
show lldp
and check the operating status of
the LLDP functionality.
2 Execute the
show lldp
and check the port information.
3 Execute the
show lldp
command and check
statistics
the statistics for the port to which the
neighboring device is connected.
4 Execute the
show lldp
and check the port status in the
information for the port to which the
neighboring device is connected.
Execute the
5
show lldp
and check the number of
neighboring device information
items on the port to which the
neighboring device is connected.
3 Troubleshooting Functional Failures During Operation
Action
command If
Enabled
If the displayed status is Disabled, the LLDP functionality has
been disabled. Enable the LLDP functionality.
command If information for the port to which the neighboring device is
connected is displayed, go to No. 3.
If information for the port to which the neighboring device is
connected is not displayed, the LLDP functionality is disabled for
the target port. Enable the LLDP functionality for the target port.
If the count has been incremented but the
Tx
check No. 1 through No. 3 on the neighboring device. If the
count has also been incremented on the neighboring device, the
connection between the devices might be incorrect. Check the
connection.
If the
Discard
connection between the devices.
For other cases, go to No. 4.
command If is displayed for Link, go to No. 5.
Up
If is displayed for Link, check the line status. For details
Down
about the check procedure, see 3.4 Network interface
communication failures.
command, If is displayed for
0
on the neighboring device. If the number of neighboring device
information items is also
connection between the devices might be incorrect. Check the
connection.
Also, LLDP control frames might have been discarded by filtering
or QoS control. See 3.24.1 Checking the filtering and QoS control
configuration information and check for a problem.
is displayed for Status, go to No. 2.
count has been incremented, check the
Counts, check No. 1 through No. 5
Neighbor
on the neighboring device, the
0
count has not,
Rx
Tx
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