191CWMP configurationCWMP overviewThe CPE WAN Management Protocol (CWMP) is initiated and developed by the Digital Subscriber’sLine (DSL) Forum. CWMP is numbered TR-069 by the forum, and is thus also called the TR-069 protocol.CWMP is designed to be applied to DSL access networks, which are hard to manage because devicesare located at the customer premise, dispersed, and large in number. CWMP makes the managementeasier by using an auto-configuration server (ACS) to perform remote centralized management ofcustomer premises equipment (CPE).A large-sale data center network has similar network environment as a DSL access network, so you canuse CWMP to remotely configure, manage, and maintain the switches in batches in the data centernetwork.The switch support the CWMP protocol. When starting up for the first time to access the network, an H3Cswitch functions as a CPE and automatically downloads the configuration file from the ACS. Comparedwith traditional manual configuration, remote and unified configuration by using CWMP offers thefollowing benefits:• Deployment of unified configuration to switches providing the same services. This reducesworkloads and improves configuration deployment efficiency.• Auto-configuration of access switches. This enables the switches to access the network after startupwithout the need of manual configuration and reduces costs.• Pre-generation of the configuration file. This reduces the error probability of manual configuration.CWMP network frameworkFigure 63 illustrates the basic framework of a CWMP network.Figure 63 Network diagramIP networkDHCP serverACS DNS serverCPECPE CPE
