No relevant resource is found in the selected language.

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies. Read our privacy policy>Search

Reminder

To have a better experience, please upgrade your IE browser.

upgrade
MENU
Support Documentation

Log Reference

CloudEngine 8800, 7800, 6800, and 5800 V200R005C00

This document provides the explanations, causes, and recommended actions of logs on the product.
Rate and give feedback:
Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
MSTP/4/MSTPLOG_PROLOOPBACK_DETECTED

MSTP/4/MSTPLOG_PROLOOPBACK_DETECTED

Message

MSTP/4/MSTPLOG_PROLOOPBACK_DETECTED:The MSTP process's port has been set to discarding state because of detecting loopback. (ProcessID=[ProcessID], InstanceID=[InstanceID], PortID=[PortID], IfIndex=[IfIndex], PortName=[PortName], PwName=[PwName])

Description

When the port detected loopback, block the port and arise trap.

Parameters

Parameter Name Parameter Meaning
ProcessID Indicates the MSTP process ID.
InstanceID Indicates the instance ID.
PortID Indicates ID of the port in the MSTP process.
IfIndex Indicates the interface index.
PortName Indicates the port name.
PwName Indicates the PW name.

Possible Causes

The STP port of the equipment detected a loopback.

Procedure

  • The STP port of the equipment detected a loopback.
    1. Check whether a local loopback is configured on the interface where the alarm is generated.

      • If a local loopback is configured on the interface where the alarm is generated, go to Step 3.

      • If no local loopback is configured on the interface where the alarm is generated, go to Step 2.

    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.

    3. Delete the local loopback configuration, and check whether the alarm is cleared. If the alarm persists, go to Step 5.
    4. Remove the self-loop network cable from the hub and check whether the alarm is cleared. If the alarm persists, go to Step 5.
    5. Collect trap, log, and configuration information, and contact technical support personnel.
Translation
简体中文
Download
Updated: 2019-04-20

Document ID: EDOC1100039602

Views: 116333

Downloads: 85

Average rating:
This Document Applies to these Products
Related Documents
Related Version
Share
Previous Next
Enterprise APP

Copyright © 2019 Huawei Technologies Co., Ltd. All rights reserved.