标准编号：ISO/IEC 29341-17-11:2011
中文名称：信息技术 通用即插即用（UPnP）设备结构 第17-11部分：服务设备质量控制协议 3级 服务管理器服务的质量
英文名称：Information technology — UPnP Device Architecture — Part 17-11: Quality of Service Device Control Protocol — Level 3 — Quality of Service Manager Service
发布日期：2011-08
标准范围
This service definition is compliant with the UPnP Device Architecture version 1.0.This service-type enables modeling of ‘Quality of Service Manager’ function capabilities. QosManager functionality is the combination of QosManager service and control point functionality that discovers and controls QosDevice and QosPolicyHolder services running on the network. The QosManager function is responsible for requesting, updating, releasing and in general controlling the Quality of Service assigned by networking devices to various traffic streams. The QosManager service is invoked from an UPnP Control Point to perform the functions related to setting up QoS2 for that traffic stream. Once the network is configured with respect to the QoS for the upcoming traffic stream, the QosManager service will hand back control to the Control Point. This service provides a mechanism for a Control Point to:-- Be agnostic of the QoS capabilities and associated details about the various QoS Devices on the network at the expense of potential network inefficiency.-- Abstract the tasks of setting up, modifying and revoking the QoS associated with every traffic stream-- QosManager:3 defines new capabilities to set up Parameterized QoS. Control Points may now request reservations for specific resources for the exclusive use of individual streams. Successful resource reservation ensures that streams will always have the bandwidth and other resources to transport time critical data.-- QosManager:3 defines a method for Control Points to request preemption of existing reservations on the UPnP-QoS network if necessary to admit a new stream.-- QosManager:3 supports a mechanism for providing a list of blocking streams to a Control Point so that it can handle preemption on its own, if desired.A QosManager is a dual-role entity that exposes a QosManager Service to the Control Point while acting as a Control Point for the QosPolicyHolder Service and QosDevice Services running on the network. This document describes the components of the UPnP QosManager Service and the QoS Manager. The QoS Manager provides the Control Point functionality that discovers and controls QosDevice Services and the QosPolicyHolder Services running on the network. Additional information concerning the QoS Manager may be found in:-- UPnP QoS Architecture document [QoS Architecture]-- UPnP QosDevice Service Definition Document [QOS DEVICE]-- UPnP QosPolicyHolder Service Definition Document [POLICY HOLDER]
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