The application servers in n-tier architecture host remotely accessible business components. These are accessed by the presentation layer web server over the network using native protocols.
N级结构中的应用服务器负责提供可远程访问的业务逻辑组件，而表现层网页服务器则使用本网协议通过网络访问这些组件。
Cloud computing is made up of a variety of layered elements, starting at the most basic physical layer of storage and server infrastructure and working up through the application and network layers.
云计算是由多种分层的要素组成，从最基本的物理层存储和服务器基础架构开始，以及应用层和网络层。
Using software method, we design and implement a management layer of server cluster and a communication layer for parallel fault-tolerant network.
在服务器集群的实现中，我们采用了软件集群的方法，设计实现了服务器集群管理层和并行容错通信层。
Also, while IRF enables connectivity from the server edge to the core, HP can preserve the Layer 3 and up network segmentation for traditional connectivity, like MPLS or VPLS, to the outside world.
另外，虽然IRF能够实现从服务器边缘到核心的连接，但惠普能够保留第3层，并为通向外界的传统连接(如mpls或VPLS)支持网络分段。
Also, while IRF enables connectivity from the server edge to the core, HP can preserve the Layer 3 and up network segmentation for traditional connectivity, like MPLS or VPLS, to the outside world.
另外，虽然IRF能够实现从服务器边缘到核心的连接，但惠普能够保留第3层，并为通向外界的传统连接(如mpls或VPLS)支持网络分段。
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