Prestige 2302 Support Notes
All contents copyright (c) 2005 ZyXEL Communications Corporation.
62
•
Services
: Services are provided by devices, such as time services provided by alarm clocks. In
UPnP, services are described in XML format. Control points can set/get services information from
devices.
•
Control points
: Control points can manipulate network devices When you add a new control
point (in this case, a laptop) to a network, the device may ask the network to find UPnP-enabled
devices. These devices then respond with their URLs and device descriptions.
UPnP Operations
•
Addressing:
UPnPv1 devices MAY support IPv4, IPv6, or both. For IPv4, each device should be set to work
as a DHCP client. When the device is connected to the network, it is able to connect to and obtain IP
settings from a DHCP server. If the DHCP server is not found, the device assigns itself an IP address
(169.254.0.0/16) using the auto-IP mechanism.
•
Discovery: Whenever a device is added to the network, it will advertise its service to other devices on
the network. A control point can also discover services provided by the devices.
•
Description: Control points can get detailed service information from the devices' description in XML
format. The description may include product name, model name, serial number, vendor ID, and
embedded services, etc.
•
Control: Devices can be manipulated by control points through Control message.
•
Eventing: Devices can send event messages to notify control points if there is any update on the services
provided.
