l If the number of sent and received packets is 0 or remains unchanged, check the status of
the interface connected to the monitored network.
– If the interface status is Down, bring the interface Up.
– If the interface status is Up, no traffic is sent to the switch from the monitored network.
No action is necessary.
l If the number of packets received by the mirrored port is not 0 and keeps increasing, go to
step 2.
Step 2 Check that the mirrored port is configured correctly.
When configuring the mirrored port, ensure that the observing port index specified in the
command is the same as the index of the configured observing port. Run the display port-
mirroring command to check the mapping between the observing port and mirrored port and
the direction of packets to which port mirroring is applied.
l If the mirrored port configuration is incorrect, run the port-mirroring to observe-port
command in the view of the mirrored port to specify the observing port index correctly.
l If the mirrored port configuration is correct, go to step 3.
Step 3 Check whether the observing port sends packets to the monitoring device.
Run the display interface command multiple times to view information about the observing
port. The Output field in the command output specifies the number of packets sent by the
observing port.
l If the number of sent packets is 0 or remains unchanged, check the status of the observing
port.
– If the observing port is Down, bring it to Up.
– If the observing port is Up, go to step 4.
l If the number of packets sent by the observing port is not 0 and keeps increasing, go to step
4.
Step 4 Collect the following information and contact Huawei technical support personnel:
l Results of the preceding troubleshooting procedure
l Configuration file, log file, and alarm file of the AR2200-S
----End
Relevant Alarms and Logs
Relevant Alarms
None.
Relevant Logs
None.
Huawei AR2200-S Series Enterprise Routers
Troubleshooting 2 System
Issue 01 (2012-01-06) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
19
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