Huawei Technologies Co. Ltd EM820W 사용자 설명서
6.1 Various Maintenance Methods
The ARs support various local and remote maintenance methods:
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Local maintenance using the console interface
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Local or remote maintenance using Telnet
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Secure shell (SSH) maintenance: guarantees security and provides authentication for login
users on an insecure network, and defends against various attacks, including IP address
spoofing, plain text password interception, and denial of service (DoS).
users on an insecure network, and defends against various attacks, including IP address
spoofing, plain text password interception, and denial of service (DoS).
6.1.1 Web-based Network Management System
The ARs support the web-based network management system, which provides GUI for device
configuration and management.
configuration and management.
Users can use the web-based system to manage network devices on the GUI. A junior engineer
can use the GUI easily.
can use the GUI easily.
6.1.2 CWMP
The CPE WAN Management Protocol (CWMP) is drafted by the Digital Subscriber's Line (DSL)
forum. It is also called TR-069 standard. CWMP standardizes the communication between
customer premises equipment (CPE) and auto-configuration server (ACS).
forum. It is also called TR-069 standard. CWMP standardizes the communication between
customer premises equipment (CPE) and auto-configuration server (ACS).
There are a lot of user devices separated on the access network. They are difficult to manage
and maintain. The ARs are the CPE deployed at the user network side. The ACS uses CWMP
to remotely manage the CPE. This reduces maintenance cost and improves troubleshooting
efficiency.
and maintain. The ARs are the CPE deployed at the user network side. The ACS uses CWMP
to remotely manage the CPE. This reduces maintenance cost and improves troubleshooting
efficiency.
6.1.3 Remote Deployment and Maintenance Using USB
As the network expands, more and more network devices are used and software commissioning
costs increase. USB-based deployment does not require software commissioning, which reduces
deployment costs.
costs increase. USB-based deployment does not require software commissioning, which reduces
deployment costs.
Before using a USB flash drive to configure an AR, store software package and configuration
files on the USB flash drive. Software engineers do not need to commission devices onsite. After
installing the AR, hardware engineers will insert the USB flash drive into the USB interface on
the AR and power on the AR. After being started, the AR automatically loads and upgrades the
software.
files on the USB flash drive. Software engineers do not need to commission devices onsite. After
installing the AR, hardware engineers will insert the USB flash drive into the USB interface on
the AR and power on the AR. After being started, the AR automatically loads and upgrades the
software.
6.1.4 SNMP-based Maintenance
The ARs support the Simple Network Management Protocol (SNMP) v1/v2c/v3 and the Client/
Server model. The ARs can be managed by the network management system (NMS), such as
iManager U2000.
Server model. The ARs can be managed by the network management system (NMS), such as
iManager U2000.
6.2 Fault Location
Huawei AR G3 Series Enterprise Routers
Product Description
Product Description
6 Maintenance and Management
Issue 02 (2012-04-20)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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