标准编号：ISO/IEC 29341-8-3:2008
中文名称：信息技术 通用即插即用（UPnP）设备结构 第8-3部分：互联网网关设备控制协议 广域网设备
英文名称：Information technology — UPnP Device Architecture — Part 8-3: Internet Gateway Device Control Protocol - Wide Area Network Device
发布日期：2008-11
标准范围
This device template is compliant with the UPnP Device Architecture, Version 1.0.WANDevice is a REQUIRED virtual device under the root deviceurn:schemas-upnp-org:device:InternetGatewayDeviceWANDevice is a standalone virtual device and may be included in other root devices if appropriate.Each WAN interface MUST support one Internet connection, but MAY simultaneously support more than oneInternet connection. The modeling of connections is described in the Theory of Operation section.Each WANDevice is a virtual instantiation of a physical WAN interface on the Internet gateway. If anInternetGatewayDevice provides multiple WAN physical interfaces to UPnP clients, each of these will typicallybe included in the device description document as distinct WANDevice instances. However, an implementationmay choose to encapsulate more than one physical WAN interface in a single WANDevice. This may be done,for example, in applications that use asymmetric connections like a satellite downlink and POTS uplink. Anotherexample would be where multiple physical WAN interfaces are pooled and presented as one device. Aspectssuch as load balancing between the pooled resources would be transparent to UPnP clients in this case.
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