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公开(公告)号：UST104003I4
公开(公告)日：1984-03-06
申请号：US440263
申请日：1982-11-09
申请人： Lon E. Hall , Richard E. Eveland
发明人： Lon E. Hall , Richard E. Eveland
IPC分类号： H04L29/08 , G06F13/22 , G06F15/163
CPC分类号： G06F15/163 , G06F13/22
摘要： A first data processor (10) and at least a second data processor (11) are connected by a data link (12). The processors each have a communication adapter (14) which is connected to the data link and system clock (21) which times functions within the processor. Under a synchronous data link control (SDLC) protocol which has information frames and supervisory frames, one of the processors is designated as the primary station and the other, the secondary station. Whenever supervisory frames are transmitted between the primary and secondary stations, means are operative for inserting a mandatory non-polling quiet period of a predetermined length prior to each poll so that the processor at the secondary station is freed for non-polling functions.
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2.发明授权System for forwarding data packets with different formats to different software entitles respectively based upon match between portion of data packet and filter 失效基于数据包部分和过滤器之间的匹配，分别将具有不同格式的数据包转发到不同软件授权的系统
公开(公告)号：US5548731A
公开(公告)日：1996-08-20
申请号：US516112
申请日：1995-08-17
摘要： A common data link interface providing a framework for device drivers and data link providers. This interface allows multiple frameworks to coexist and share a single device driver. The common data link interface is framework independant and provides functions that are common to a plurality of frameworks. The common data link interface comprises three components, a network device driver, network demultiplexers, and network services. The network device driver provides a simple interface to network based devices that can be used by both the sockets IFNET and the streams DLPI data link layers. The network demultiplexor provides common data link receive functionality. Network services provides the remaining additional functionality required to bind the common data link interface together.
摘要翻译： 一个通用的数据链接界面，为设备驱动程序和数据链接提供程序提供框架。 此接口允许多个框架共存并共享单个设备驱动程序。 公共数据链接界面是框架独立的，并提供多个框架通用的功能。 公共数据链路接口包括三个组件，网络设备驱动器，网络解复用器和网络服务。 网络设备驱动程序为基于网络的设备提供了简单的接口，可以由插槽IFNET和流DLPI数据链路层使用。 网络解复用器提供公共数据链路接收功能。 网络服务提供了将公共数据链路接口绑定在一起所需的其余附加功能。
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