Mac Address Table Troubleshooting - Huawei V200R001C01 Troubleshooting Manual

Huawei AR2200-S Series Enterprise Routers
Troubleshooting
Step 5 Check whether port isolation is configured.
Run the interface interface-type interface-number command in the system view to enter the
interface view, and then run the display this command to check whether port isolation is
configured on the interface.
l If port isolation is configured, run the undo port-isolate enable command on the interface
l If port isolation is not configured, go to
Step 6 Check whether correct static Address Resolution Protocol (ARP) entries are configured on the
user terminals.
l If the static ARP entries are incorrect, modify them.
l If the static ARP entries are correct, go to
Step 7 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.

4.2 MAC Address Table Troubleshooting

This chapter describes common causes of MAC address table faults, and provides the
corresponding troubleshooting flowcharts, troubleshooting procedures, alarms, and logs.
4.2.1 Correct MAC Address Entries Cannot Be Generated
This section describes the troubleshooting flowchart and provides a step-by-step troubleshooting
procedure for the MAC address table fault.
Common Causes
This fault is commonly caused by one of the following:
l
l
l
Issue 01 (2012-01-06)
– If the MAC address entries are incorrect, go to
to disable port isolation.
The device fails to learn correct MAC address entries because of incorrect configuration.
The learned MAC addresses are updated frequently because of a loop on the network.
The MAC address learning function on the interface is disabled.
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Step 7.
Step 6.
Step 7.
4 LAN
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