H3C Technologies H3C WX3000E Series Wireless Switches - Manual (Page 54)

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configuration and configuration changes of each CPE. CWMP also allows the administrator to define
monitor parameters and get the parameter values through an ACS, so as to get the CPE status and
statistics information.
The status and performance that can be monitored by an ACS include:
• Manufacture name (Manufacturer)
• ManufacturerOUI
• SerialNumber
• HardwareVersion
• SoftwareVersion
• DeviceStatus
• UpTime
• Configuration file (ConfigFile)
• ACS address (URL)
• ACS username (Username)
• ACS password (Password)
• PeriodicInformEnable
• PeriodicInformInterval
• PeriodicInformTime
• CPE address (ConnectionRequestURL)
• CPE username (ConnectionRequestUsername)
• CPE password (ConnectionRequestPassword)
CWMP mechanism
RPC methods
CWMP provides the following major remote procedure call methods for an ACS to manage or monitor
a CPE:
• Get—The ACS gets the value of one or more parameters from the CPE.
• Set—The ACS sets the value of one or more parameters on the CPE.
• Inform—The CPE sends an Inform message to an ACS whenever the CPE initiates a connection to
the ACS, or the CPE's underlying configuration changes, or the CPE periodically sends its local
information to the ACS.
• Download—The ACS requires a CPE to download a specific file from the specified URL, ensuring
upgrading of CPE software and auto download of the vendor configuration file.
• Upload—The ACS requires a CPE to upload a specific file to the specified location.
• Reboot—The ACS remotely reboots the CPE when the CPE encounters a failure or completes a
software upgrade.
How CWMP works
The following example illustrates how CWMP works. The scenario: There are two ACSs, main and
backup in an area. The main ACS needs to restart for system upgrade. To ensure continuous monitoring
of the CPE, the main ACS must switch all CPEs in the area over to the backup ACS.