MSTP
MSTP_ADP/5/ADD_BINDVLAN
MSTP/4/BPDU_PROTECTION
MSTP/4/EDGE_PORT
MSTP/4/LOOPBACK_DETECTED
Message
MSTP/4/LOOPBACK_DETECTED:The port [port-name] was blocked because it received the BPDU packets sent by itself.
Parameters
| Parameter Name | Parameter Meaning |
|---|---|
| port-name | Name of the port where loopback detection is enabled |
Possible Causes
An STP-capable interface received BPDUs with the designated bridge ID as the local bridge ID and the designated interface ID as the local interface ID, indicating that a self loop occurs.
Procedure
- Run the display current-configuration interface interface-name command to check whether the interface generating this alarm has been configured with the loopback function.
- If so, go to Step 4.
- If not, go to Step 2.
- Check whether there is a loop formed by hubs and devices that are connected to the interface.
- If so, go to Step 5.
- If not, go to Step 3.
- Collect log information and configuration information, and then contact technical support personnel.
- Run the undo loopback command in the interface view to delete the local loopback configuration.
- Remove the self-loop network cable from the hub to resolve the problem.
MSTP/4/LOOP_GUARD
Message
MSTP/4/LOOP_GUARD:MSTP process [process-id] Instance[instance-id]'s LOOP-Protection port [port-name] did not receive message in prescriptive time!
Description
The port that was enabled with the loop protection function in the instance did not receive a BPDU within the specified period.
MSTP/3/PACKET_ERR_COMPLIAN
Message
MSTP/3/PACKET_ERR_COMPLIAN:The port compliance protocol type of the packet received by MSTP from the port [port-name] is invalid.
Possible Causes
The MSTP module received an invalid BPDU. This BPDU might be an attack BPDU or a BPDU with the private MSTP format of a non-Huawei device.
Procedure
- Use a tool to get the received invalid BPDU.
- Query and record the information about the remote end, including the manufacturer, version, and configuration.
- If a Huawei device is used, run the display version and display interface commands or the display current-configuration command.
- If a non-Huawei device is used, run the related commands provided by the manufacturer to obtain information on the device.
- If the packet received by MSTP was invalid and hence the STP status was wrong, loops may occur at Layer 2. You are advised to shut down the interface to prevent broadcast storms. To view STP status and check whether loops occur, run the display stp brief command. After confirming that loops are removed, run the undo shutdown command to enable the interface.
- Report the statistics on error packets and contact technical support personnel for further analysis.
MSTP/6/RECEIVE_MSTITC
Message
MSTP/6/RECEIVE_MSTITC:MSTP received BPDU with TC, MSTP process [process-id] instance [instance-id], port name is [port-name]. (VlanId=[VlanId], SrcMAC=[SrcMAC])
MSTP/4/ROOT_LOST
Message
MSTP/4/ROOT_LOST:This bridge is no longer the root bridge of the MSTP process [process-id] instance [instance-id].(PreRootInfo=[PreRootInfo], NewRootInfo=[NewRootInfo])
MSTP/4/SET_PORT_DISCARDING
Message
MSTP/4/SET_PORT_DISCARDING:In MSTP process [process-id] instance [instance-id], MSTP set port [port-name] state as discarding.
Description
The MSTP module set the status of the port [port-name] in instance [instance-id] of the process [process-id] to Discarding.
MSTP/4/SET_PORT_FORWARDING
Message
MSTP/4/SET_PORT_FORWARDING:In MSTP process [process-id] instance [instance-id], MSTP set port [port-name] state as forwarding.
Description
The MSTP module set the status of the port [port-name] in the instance [instance-id] of the process [process-id] to Forwarding.
MSTP/4/SET_PORT_LEARNING
Message
MSTP/4/SET_PORT_LEARNING:In process [process-id] instance [instance-id], MSTP set port [port-name] state as learning.
Description
The MSTP module set the status of the port [port-name] in the instance [instance-id] of the process [process-id] to Learning.