请帮忙翻译一下计算机英语~~急需~~~

Hub

In general, a hug is the central part of a wheel where the spokes come together. The term is familiar to frequent fliers who travel through airport “hubs” to make connecting flights from one point to another. In data communications, a hub is a place of convergence where data arrives from one or more directions and is forwarded out in one or more other directions. A hub usually includes a switch of some kind. And a product that is called a “switch” could usually be considered a hub as well. The distinction seems to be that the hub is the place where data comes together and the switch is what determines how and where data is forwarded from the place where data comes together. Regarded in its switching aspects, a hub can also include a router.

1) In describing network topologies , a hub topology consists of a backbone (main circuit) to which a number of outgoing lines can be attached (“dropped”), each providing one or more connection port for device to attach to. For Internet users not connected to a local area network, this is the general topology used by your access provider. Other common network topologies are the bus network and the ring network. (Either of these could possibly feed into a hub network, using a bridge.)

2) As a network product, a hub may include a group of modem cards for dial-in users, a gateway card for connections to a local area network (for example, an Ethernet or a Token Ring), and a connection to a line.

2008-12-13  mzts_dan

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集线器

一般来说，一个拥抱是中部地区一个车轮的辐条走到一起。这个词是熟悉的频繁传单谁穿越机场的“枢纽” ，使转机，从一个点到另一个。在数据通信，中心是一个融合的数据来从一个或多个方向，并转交了一个或多个其他方向。枢纽通常包括一个开关的一些实物。和一种产品，被称为“开关”通常被视为一个枢纽，以及。这种区别似乎是该枢纽是地方的数据集中在一起和开关是什么决定如何以及在何处数据转发的地方数据一起出现。认为在其转换方面，中心还可以包括一个路由器。

1 )在描述网络拓扑，拓扑中心组成的骨干(主电路) ，在其中一些即将离任的线路可以附加( “下降” ) ，每提供一个或多个连接端口的设备重视。对于互联网用户没有连接到局域网，这是一般使用的拓扑您的访问供应商。其他常见的网络拓扑是巴士网络和环形网络。 (无论这些饲料可能成为一个枢纽网络，使用一桥之隔。 )

2 )作为一个网络产品，中心可包括一组调制解调器卡的拨号用户，一个网关卡连接到局域网(例如，一个以太网或令牌环) ，以及连接线

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