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Configuring cwmp, Overview, Cwmp network framework – H3C Technologies H3C S6300 Series Switches User Manual

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Configuring CWMP

CWMP is available in Release 2311P04 and later versions.

Overview

CPE WAN Management Protocol (CWMP), also called TR-069, is a DSL Forum technical specification
for remote management of home network devices.
The protocol was initially designed to provide remote autoconfiguration through a server for large

numbers of dispersed end-user devices in DSL networks. However, it has been increasingly used on other

types of networks, including Ethernet, for remote autoconfiguration.

CWMP network framework

Figure 1

shows a basic CWMP network framework.

Figure 1 CWMP network framework

A basic CWMP network includes the following network elements:

ACS—Autoconfiguration server, the management device in the network.

CPE—Customer premises equipment, the managed device in the network.

DNS server—Domain name system server. CWMP defines that the ACS and the CPE use URLs to
identify and access each other. DNS is used to resolve the URLs.

DHCP server—Assigns ACS attributes along with IP addresses to CPEs when the CPEs are powered
on. DHCP server is optional in CWMP. With a DHCP server, you do not need to configure ACS

attributes manually on each CPE. The CPEs contact the ACS automatically when they are powered
on for the first time.

The device is operating as a CPE in the CWMP framework.

DNS server

CPE

ACS

DHCP server

CPE

CPE

IP network