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- An application delivery network (ADN) is a suite of technologies that, when deployed together, provide availability, security, visibility, and acceleration for Internet applications such as websites. ADN components provide supporting functionality that enables website content to be delivered to visitors and other users of that website, in a fast, secure, and reliable way. Gartner defines application delivery networking as the combination of WAN optimization controllers (WOCs) and application delivery controllers (ADCs). At the data center end of an ADN is the ADC, an advanced traffic management device that is often also referred to as a web switch, content switch, or multilayer switch, the purpose of which is to distribute traffic among a number of servers or geographically dislocated sites based on application specific criteria. In the branch office portion of an ADN is the WAN optimization controller, which works to reduce the number of bits that flow over the network using caching and compression, and shapes TCP traffic using prioritization and other optimization techniques. Some WOC components are installed on PCs or mobile clients, and there is typically a portion of the WOC installed in the data center. Application delivery networks are also offered by some CDN vendors. The ADC, one component of an ADN, evolved from layer 4-7 switches in the late 1990s when it became apparent that traditional load balancing techniques were not robust enough to handle the increasingly complex mix of application traffic being delivered over a wider variety of network connectivity options. (en)
- 应用交付网络（Application delivery network，ADN）又稱应用程序交付网络，是一種技术，當它被部署后，能保障应用程序的可用性、安全性、可视性以及使应用程序的訪問速度更快。高德纳咨询公司将应用交付网络定义为廣域網路優化控制器和应用程序交付控制器的组合。在应用交付网络的数据中心端通常為应用程序交付控制器，这是一种流量管理设备，通常为网络交换机、内容交换机或多层交换机，其目的是根据应用的特定标准在一些服务器之间分配流量。在应用交付网络的分支部分是廣域網路優化控制器，它通過缓存和压缩来减少流经网络的位元。一些廣域網路優化控制器的组件安装在PC或移动客户端上，還有一部分廣域網路優化控制器安装在数据中心。一些內容傳遞網路厂商也能提供应用交付网络。 (zh)
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- 应用交付网络（Application delivery network，ADN）又稱应用程序交付网络，是一種技术，當它被部署后，能保障应用程序的可用性、安全性、可视性以及使应用程序的訪問速度更快。高德纳咨询公司将应用交付网络定义为廣域網路優化控制器和应用程序交付控制器的组合。在应用交付网络的数据中心端通常為应用程序交付控制器，这是一种流量管理设备，通常为网络交换机、内容交换机或多层交换机，其目的是根据应用的特定标准在一些服务器之间分配流量。在应用交付网络的分支部分是廣域網路優化控制器，它通過缓存和压缩来减少流经网络的位元。一些廣域網路優化控制器的组件安装在PC或移动客户端上，還有一部分廣域網路優化控制器安装在数据中心。一些內容傳遞網路厂商也能提供应用交付网络。 (zh)
- An application delivery network (ADN) is a suite of technologies that, when deployed together, provide availability, security, visibility, and acceleration for Internet applications such as websites. ADN components provide supporting functionality that enables website content to be delivered to visitors and other users of that website, in a fast, secure, and reliable way. (en)
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- Application delivery network (en)
- 应用交付网络 (zh)
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