5.1 Various Maintenance Methods
5.1.1 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).
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.
5.1.2 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.
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.
5.1.3 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.
5.1.4 CLI-based Maintenance
An AR500 provides CLIs for local and remote terminal maintenance. The AR500 as a data
concentrator has independent command lines, which are separated from command lines of the
AR500 as a router. That is, AMI functions are separated from router functions, which simplifies
maintenance.
5.2 Fault Location
5.2.1 Device Fault Location
The AR500 support the following functions to locate device faults:
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Information center
Huawei AR500 Industrial Switch Routers
Product Description
5 Maintenance and Management
Issue 01 (2013-5-10)
Huawei Proprietary and Confidential
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