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1. 发明授权

US5136716A Session control in network for digital data processing system which supports multiple transfer protocols 失效
标题翻译：支持多种传输协议的数字数据处理系统网络中的会话控制
公开(公告)号：US5136716A
公开(公告)日：1992-08-04
申请号：US492381
申请日：1990-03-08
申请人： George A. Harvey , Gerard Koning , William Hawe , Anthony Lauck , David Oran , John Harper , Kevin Miles
发明人： George A. Harvey , Gerard Koning , William Hawe , Anthony Lauck , David Oran , John Harper , Kevin Miles
IPC分类号： G06F15/16 , G06F13/38 , G06F15/177 , H04L29/00 , H04L29/06 , H04L29/12
CPC分类号： H04L61/1552 , G06F13/387 , H04L29/00 , H04L29/12132 , H04L61/1582 , H04L69/18
摘要： A distributed digital data processing system includes a plurality of nodes which communicate over a network. A node maintains one or more objects, each of which may be a file, that is, an addressable unit in the system, such as a program, database, text file, or the like, or a directory which may contain one or more files or other directories. One node maintains a naming service which associates each object in the system with one or more protocol towers. Each protocol tower identifies the object name and a series of entries each identifying a name for each of the protocol layers, along with the communications parameters and address information, to be used in communicating with the object. When a node requires access to an object maintained by another node, it first retrieves from the naming service the protocol towers for the object. The node also maintains a tower identifying the names of each of the protocols over which it can communicate. The node then compares the protocol names in the retrieved protocol towers with the protocol names over which it can communicate. If the protocol names in a retrieved tower match the protocol names in the node's tower, the node uses the communications parameters and address information in future communications with the object. If the node is unable to identify a retrieved protocol tower which matches its supported tower or towers, it is unable to communicate with the object.
摘要翻译：分布式数字数据处理系统包括通过网络进行通信的多个节点。节点维护一个或多个对象，每个对象可以是文件，即系统中的可寻址单元，诸如程序，数据库，文本文件等，或者可以包含一个或多个文件的目录或其他目录。一个节点维护命名服务，将系统中的每个对象与一个或多个协议塔相关联。每个协议塔标识对象名称和一系列条目，每个条目标识每个协议层的名称，以及要与对象进行通信的通信参数和地址信息。当节点需要访问由另一个节点维护的对象时，它首先从命名服务检索对象的协议塔。节点还维护一个塔，标识可以与之通信的每个协议的名称。然后，节点将检索到的协议塔中的协议名称与可以通信的协议名称进行比较。如果检索到的塔中的协议名称与节点塔中的协议名称相匹配，节点将在与对象的通信中使用通信参数和地址信息。如果节点无法识别与其支持的塔或塔相匹配的检索协议塔，则无法与对象进行通信。

2. 发明授权

US5150360A Utilization of redundant links in bridged networks 失效
标题翻译：桥接网络中冗余链路的利用
公开(公告)号：US5150360A
公开(公告)日：1992-09-22
申请号：US489910
申请日：1990-03-07
申请人： Radia J. Perlman , William Hawe , Anthony Lauck
发明人： Radia J. Perlman , William Hawe , Anthony Lauck
IPC分类号： H04L12/46 , H04L12/56
CPC分类号： H04L45/48 , H04L12/462 , H04L45/18
摘要： A method and related apparatus for establishing a point-to-point cross-link between two bridges in a bridged communication network. The bridged communication network is first configured in a loop-free arrangement by a spanning tree algorithm that selects which links of every bridge to activate in order to form the spanning tree active configuration. Then at least one cross-link not defined by the spanning tree configuration is established for routing of messages as an alternative to a spanning tree path. A protocol in each bridge ensures that no loops are formed and that only messages to preselected locations are passed over the cross-link. An optional optimization procedure measures message propagation times in both directions between the two bridges and over both the cross-link path and the spanning tree path, to determine whether to modify usage of the cross-link. Selection of the bridges for the formation of the cross-link, and selection of the destination stations for cross-link traffic, are independent of the location of a root bridge in the spanning tree configuration.
摘要翻译：一种用于在桥接通信网络中的两个桥之间建立点对点交叉链路的方法和相关装置。桥接通信网络首先通过生成树算法以无循环的方式配置，该生成树算法选择每个桥的哪些链路来激活以便形成生成树活动配置。然后，建立至少一个未被生成树配置定义的交叉链路用于路由消息，作为生成树路径的替代。每个网桥中的一个协议可以确保不会形成循环，只有通过交叉链接传递到预选位置的消息。可选的优化过程测量两个网桥之间以及跨越链路路径和生成树路径的两个方向的消息传播时间，以确定是否修改交叉链路的使用。用于形成交叉链路的桥的选择以及用于跨链路业务的目的站的选择独立于生成树配置中的根桥的位置。

3. 发明授权

US5734659A Computer network having a virtual circuit message carrying a plurality of session messages 失效
标题翻译：具有携带多个会话消息的虚拟电路消息的计算机网络
公开(公告)号：US5734659A
公开(公告)日：1998-03-31
申请号：US223245
申请日：1994-04-01
申请人： Bruce Mann , Darrell Duffy , Anthony Lauck , William Strecker
发明人： Bruce Mann , Darrell Duffy , Anthony Lauck , William Strecker
IPC分类号： G06F13/00 , H04L12/413 , H04L29/00 , H04L29/06 , H04L29/08 , H04J3/00 , H04L12/56
CPC分类号： H04L29/00 , H04L29/06 , H04L69/326 , H04L67/16 , H04L67/24 , H04L67/42 , H04L69/18 , H04L69/24 , H04L69/28 , H04L69/329
摘要： A system has a node connected to a network, the node generating a separate session message for each of a plurality of users. The node places each of the separate session message in a slot in a single virtual circuit message, and transmits the virtual circuit message onto the network. A server is connected to the network, and the server receives the virtual circuit message, and the server identifies each of the separate session messages. The server then transmits each of the separate session message to a user having a session corresponding to each of the separate session messages.
摘要翻译：系统具有连接到网络的节点，所述节点为多个用户中的每一个生成单独的会话消息。节点将单独的会话消息中的每一个放置在单个虚拟电路消息中的时隙中，并将虚拟电路消息发送到网络上。服务器连接到网络，服务器接收虚拟电路消息，并且服务器识别每个单独的会话消息。然后，服务器将每个单独的会话消息发送给具有对应于每个单独会话消息的会话的用户。

4. 发明授权

US5280582A No-owner frame and multiple token removal mechanism for token ring networks 失效
标题翻译：令牌环网络的无所有者帧和多个令牌删除机制
公开(公告)号：US5280582A
公开(公告)日：1994-01-18
申请号：US17956
申请日：1993-02-16
申请人： Henry Yang , K. K. Ramakrishnan , Anthony Lauck
发明人： Henry Yang , K. K. Ramakrishnan , Anthony Lauck
IPC分类号： H04L12/42 , H04L12/433 , G06F15/16
CPC分类号： H04L12/42 , H04L12/433
摘要： A ring purging station for a token-ring network is disclosed. The station performs purging operations to remove no-owner frames and frame remnants from the network. The station begins a purging operation by detecting the token on the network and removing it. The station then begins stripping all frames and remnants of frames that it receives from the network, and transits one or more purge marker frames. When the station detects one of the one or more purge marker frames it transmitted, it ends the purging operation, and releases the token back onto the ring. In this way no-owner frames and frame fragments are removed from the network, while the ring is otherwise normally operating. In an embodiment of the invention, a sequence number is associated with each purging operation, included in the purge marker frame(s), and verified upon receipt of the purge marker frame(s). The station also corrects multiple token conditions when a multiple token condition is detected during a purging operation. A further aspect of the invention is an election method for selecting a purging station from the stations on the ring.
摘要翻译：公开了一种用于令牌环网络的环形清除站。站点执行清除操作以从网络中删除不拥有的帧和帧残留。该站通过检测网络上的令牌并将其删除，开始清除操作。该站然后开始剥离其从网络接收的帧的所有帧和残余物，并且转换一个或多个清除标记帧。当站检测到其发送的一个或多个清除标记帧中的一个时，它结束清除操作，并将令牌释放回环。以这种方式，没有所有者的帧和帧分片从网络中移除，而环是正常操作的。在本发明的实施例中，序列号与包括在清除标记框架中的每个清除操作相关联，并在接收到清除标记框架时验证。当在清除操作期间检测到多个令牌条件时，该站还会校正多个令牌条件。本发明的另一方面是用于从环上的站选择清洗站的选择方法。

5. 发明授权

US4975905A Message transmission control arrangement for node in local area network 失效
标题翻译：局域网中节点的消息传输控制布置
公开(公告)号：US4975905A
公开(公告)日：1990-12-04
申请号：US412577
申请日：1989-09-25
申请人： Bruce Mann , Darrell Duffy , Anthony Lauck , William Strecker
发明人： Bruce Mann , Darrell Duffy , Anthony Lauck , William Strecker
IPC分类号： H04L12/413 , H04L29/00 , H04L29/06 , H04L29/08
CPC分类号： H04L29/00 , H04L69/326 , H04L67/16 , H04L67/24 , H04L67/42 , H04L69/18 , H04L69/24 , H04L69/28 , H04L69/329
摘要： A local area network for interconnecting terminals and other users and data processing systems and other service providers over a communications link. The users and providers connect to the communications link by means of interface units each of which may connect to several users or providers. The interface units communicate over the communications link by means of messages. When a user requires the use of a service, the interface unit establishes a virtual circuit between it and the interface unit connected to the service provider and a service session which allows the user and the service provider to communicate over the virtual circuit. If several users connected to the one interface unit as the first user require services provided by providers which connected to the same interface unit as the first provider, they communicate in sessions over the same virtual circuits. The session messages are accumulated into single virtual circuit messages that are acknowledged in unison by the receiving interface unit. Each virtual circuit in the users' interface units includes a timer which reset when a message is transmitted over the virtual circuit and a data waiting flag set whenever data is present to be transmitted over the virtual circuit. The interface units are inhibited for transmitting over a virtual circuit unless the timer has timed out and the data waiting flag is set.
摘要翻译：用于通过通信链路互连终端和其他用户以及数据处理系统和其他服务提供商的局域网。用户和提供商通过接口单元连接到通信链路，每个接口单元可以连接到多个用户或提供商。接口单元通过消息通过通信链路进行通信。当用户需要使用服务时，接口单元在其与连接到服务提供商的接口单元之间建立虚拟电路，以及允许用户和服务提供商通过虚拟电路进行通信的服务会话。如果作为第一用户连接到一个接口单元的多个用户需要连接到与第一提供商相同的接口单元的提供商提供的服务，则它们在相同虚拟电路上的会话中通信。会话消息被累积到由接收接口单元一致确认的单个虚拟电路消息中。用户接口单元中的每个虚拟电路包括当通过虚拟电路发送消息时复位的定时器，以及每当存在要通过虚拟电路发送的数据时设置的数据等待标志。禁止接口单元通过虚拟电路进行发送，除非定时器已经超时并且设置了数据等待标志。

6. 发明授权

US5058108A Local area network for digital data processing system 失效
标题翻译：局域网数字数据处理系统
公开(公告)号：US5058108A
公开(公告)日：1991-10-15
申请号：US412576
申请日：1989-09-25
申请人： Bruce Mann , Darrell Duffy , Anthony Lauck , William Strecker
发明人： Bruce Mann , Darrell Duffy , Anthony Lauck , William Strecker
IPC分类号： G06F15/16 , H04L12/413 , H04L29/00 , H04L29/06 , H04L29/08
CPC分类号： G06F15/161 , H04L29/00 , H04L29/06 , H04L69/326 , H04L67/16 , H04L67/24 , H04L67/42 , H04L69/18 , H04L69/24 , H04L69/28 , H04L69/329 , Y10S370/908
摘要： A local area network for interconnecting terminals and other users and data processing systems and other service providers over a communications link. The users and providers connect to the communications link by means of interface units each of which may connect to several users or providers. The interface units communicate over the communications link by means of messages. When a user requires the use of a service, the interface unit establishes a virtual circuit between it and the interface unit connected to the service provider and a service session which allows the user and the service provider to communicate over the virtual circuit. If several users connected to the one interface unit as the first user require services provided by providers which connected to the same interface unit as the first provider, they communicate in sessions over the same virtual circuits. The session messages are accumulated into single virtual circuit messages that are acknowledged in unison by the receiving interface unit. Each virtual circuit in the users' interface units includes a timer which reset when a message is transmitted over the virtual circuit and a data waiting flag set whenever data is present to be transitted over the virtual circuit. The interface units are inhibited from transmitting over a virtual circuit unless the timer has timed out and the data waiting flag is set.
摘要翻译：用于通过通信链路互连终端和其他用户以及数据处理系统和其他服务提供商的局域网。用户和提供商通过接口单元连接到通信链路，每个接口单元可以连接到多个用户或提供商。接口单元通过消息通过通信链路进行通信。当用户需要使用服务时，接口单元在其与连接到服务提供商的接口单元之间建立虚拟电路，以及允许用户和服务提供商通过虚拟电路进行通信的服务会话。如果作为第一用户连接到一个接口单元的多个用户需要连接到与第一提供商相同的接口单元的提供商提供的服务，则它们在相同虚拟电路上的会话中通信。会话消息被累积到由接收接口单元一致确认的单个虚拟电路消息中。用户接口单元中的每个虚拟电路包括当通过虚拟电路传输消息时复位的定时器，以及当存在要在虚拟电路上传输的数据时设置的数据等待标志。禁止接口单元通过虚拟电路传输，除非定时器已经超时，并且设置了数据等待标志。

7. 发明授权

US4975904A Local area network for digital data processing system including timer-regulated message transfer arrangement 失效
标题翻译：数字数据处理系统的局域网包括定时器调节的消息传送安排
公开(公告)号：US4975904A
公开(公告)日：1990-12-04
申请号：US433419
申请日：1989-11-07
申请人： Bruce Mann , Darrell Duffy , Anthony Lauck , William Strecker
发明人： Bruce Mann , Darrell Duffy , Anthony Lauck , William Strecker
IPC分类号： H04L12/413 , H04L29/00 , H04L29/06 , H04L29/08
CPC分类号： H04L29/00 , H04L69/326 , H04L67/16 , H04L67/42 , H04L69/18 , H04L69/24 , H04L69/28 , H04L69/329
摘要： A local area network for interconnecting terminals and other users and data processing systems and other service providers over a communications link by means of interface units each of which may connect to several users or providers. The interface units communicate over the communications link by means of messages. When a user requires the use of a service, the interface unit establishes a virtual circuit between it and the interface unit connected to the service provider and a service session which allows the user and the service provider to communicate over the virtual circuit. If several users connected to the one interface unit as the first user require services provided by providers which connected to the same interface unit as the first provider, they communicate in sessions over the same virtual circuits. The session messages are accumulated into single virtual circuit messages that are acknowledged in unison by the receiving interface unit. Each virtual circuit in the user's interface units includes a timer which reset when a message is transmitted over the virtual circuit and a data waiting flag set whenever data is present to be transmitted over the virtual circuit. The interface units are inhibited from transmitting over a virtual circuit unless the timer has timed out and the data waiting flag is set.
摘要翻译：一种用于通过通信链路将终端和其他用户以及数据处理系统和其他服务提供商互连的局域网，每个接口单元可以连接到多个用户或提供商。接口单元通过消息通过通信链路进行通信。当用户需要使用服务时，接口单元在其与连接到服务提供商的接口单元之间建立虚拟电路，以及允许用户和服务提供商通过虚拟电路进行通信的服务会话。如果作为第一用户连接到一个接口单元的多个用户需要连接到与第一提供商相同的接口单元的提供商提供的服务，则它们在相同虚拟电路上的会话中通信。会话消息被累积到由接收接口单元一致确认的单个虚拟电路消息中。用户接口单元中的每个虚拟电路包括当通过虚拟电路发送消息时复位的定时器和每当存在要在虚拟电路上传输的数据时设置的数据等待标志。禁止接口单元通过虚拟电路传输，除非定时器已经超时，并且设置了数据等待标志。

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