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VBST/4/LOOPDETECT
Message
VBST/4/LOOPDETECT: In VBST VLAN [ULONG], the port [STRING] was blocked because it received the VBST packets sent by itself.
Procedure
- Check whether a local loopback is configured on the interface
where the log is generated.
- If a local loopback is configured on the interface where the log is generated, go to Step 3.
- If no local loopback is configured on the interface where the log is generated, go to Step 2.
- Check whether a loop is formed by a hub and devices, one
of which is connected to the interface.
- If a loop is formed by a hub and devices, one of which is connected to the interface, go to Step 4.
- If no loop is formed by a hub and devices, one of which is connected to the interface, go to Step 5.
- Run the undo loopback command to delete the local loopback configuration, and check whether the log persists. If the log persists, go to Step 5.
- Remove the self-loop network cable from the hub and check whether the log persists. If the log persists, go to Step 5.
- Collect trap, log, and configuration information, and contact technical support personnel.
