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Before You Start
Before starting maintenance of devices, you are advised to:
- Collect the network plan and data of the entire network, make a topology diagram and data table (including ports, IP addresses, service and management VLANs, and SSIDs), and attach them in a position easy for you to check the topology and data.
- Back up important network data. Some faults cause resource or money loss for customers. Therefore, maintenance engineers need to focus on preventing faults and quickly recovering from faults. Data backup helps you quickly locate and rectify network faults. After a network is set up and operates properly, maintenance engineers need to back up important data as soon as possible.
Important data includes:
- Configuration files and license files
- System software and patch files
- (Optional) Logs
- Collect accounts and passwords of users, such as STelnet login users and web login users, which can be quickly obtained for subsequent troubleshooting. Keep user accounts and passwords secure.
- View warning information. Visit http://support.huawei.com/enterprise. After a successful login, choose to view warning information about WLAN products.
- Obtain and print the following contact information, and attach it near your workstation:
- Huawei global service hotline
- Telephone number of the agent that provides network construction and maintenance service for you
- Visit Huawei enterprise technical support website (http://support.huawei.com/enterprise) and register a user account. A registered account allows you to browse or download more product documents, cases, and announcements, as well as subscribe to information updates.
- Prepare tools and cables that you may use during device maintenance.
No.
Item
Description
1
Cables
- An RS232 serial cable: used to log in to the device.
- Network cables, optical fibers, and SFP/eSFP/SFP+/XSFP/QSFP+ optical modules: used to locate faults and replace damaged cables.
2
Maintenance terminal
One maintenance terminal, typically a laptop with serial communication software installed: used to log in to the device.
3
Instruments and meters
- Optical power meter: used to test optical parameters of optical ports (such as optical power and receive sensitivity).
- WLAN test tool: used to test the strength of wireless signals. You can use Huawei CloudCampus APP or a handheld tester (such as Fluke Wi-Fi Tester).