[转] Quality Of Service In OpenStack

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[转] Quality Of Service In OpenStack

http://tropicaldevel.wordpress.com/2013/07/15/quality-of-service-in-openstack/ In this post I will be exploring the current state of quality of service (QoS) in OpenStack. I will be looking at both what is possible now and what is on the horizon and…

neutron qos Quality of Service

Quality of Service advanced service is designed as a service plugin. The service is decoupled from the rest of Neutron code on multiple levels (see below). QoS extends core resources (ports, networks) without using mixins inherited from plugins but t…

Quality of Service 0, 1 & 2

来自:http://www.hivemq.com/blog/mqtt-essentials-part-6-mqtt-quality-of-service-levels Quality of Service What is Quality of Service? The Quality of Service (QoS) level is an agreement between sender and receiver of a message regarding the guarantees of…

MQTT协议QoS服务质量（Quality of Service 0, 1 & 2）概念学习

什么是 QoS ? QoS (Quality of Service) 是发送者和接收者之间,对于消息传递的可靠程度的协商. QoS 的设计是 MQTT 协议里的重点.作为专为物联网场景设计的协议,MQTT 的运行场景不仅仅是 PC,而是更广泛的窄带宽网络和低功耗设备,如果能在协议层解决传输质量的问题,将为物联网应用的开发提供极大便利. 三个 QoS 级别简介在 MQTT 协议里,定义了三个级别的 QoS,由低到高分别是: 最多一次 (QoS0) 至少一次 (QoS1) 有且仅有一次 (QoS2…

Quality of service

w https://en.wikipedia.org/wiki/Quality_of_service Quality of service (QoS) is the overall performance of a telephony or computer network, particularly the performance seen by the users of the network. To quantitatively measure quality of service, se…

Quality of Service (QoS) in LTE

Background: Why we need QoS ? There are premium subscribers who always want to have better user experience on their 4G LTE device. These users are willing to pay more for high bandwidth and better network access on their devices. Not only the subscri…