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1. 发明申请

WO1995020852A1 DISTRIBUTED CHASSIS AGENT FOR NETWORK MANAGEMENT 审中-公开
标题翻译：用于网络管理的分布式代理代理
公开(公告)号：WO1995020852A1
公开(公告)日：1995-08-03
申请号：PCT/US1995001178
申请日：1995-01-26
申请人： CABLETRON SYSTEMS, INC.
发明人： CABLETRON SYSTEMS, INC. , FEE, Brendan , DOBBINS, Kurt , ARNESON, David , MULLANEY, Pat
IPC分类号： H04L29/06
CPC分类号： H04L41/0213 , H04L29/06 , H04L41/042 , H04L41/046 , H04L41/24
摘要： An apparatus and method for allocating the performance of applications in a networking chassis among one or more modules in the chassis. In particular, the system acts as a chassis agent for performing network management functions. The agent performs a discovery function whereby each module discovers the location and current utilization of resources and applications for itself and transmits that information to other modules, and wherein each module maintains a slot table of such information for all modules. Based on the information in the slot table, each module performs an election function for allocating applications among the various modules in the chassis. The agent uses MIBs to gather information about the chassis and to effect control on the chassis, wherein each managed object is registered both locally and remotely in an MIB tree maintained on each module, and the data is maintained locally on the module on which the managed object resides. The system enables the chassis to be managed "as a whole" while the management functions are distributed across the system, and the system is both fault tolerant and enables ready expansion and modification of the management applications.
摘要翻译：一种用于在机箱中的一个或多个模块中分配网络机箱中的应用的性能的装置和方法。特别地，该系统充当用于执行网络管理功能的机箱代理。代理执行发现功能，每个模块发现自身的资源和应用的位置和当前利用，并将该信息发送到其他模块，并且其中每个模块维护所有模块的这种信息的时隙表。基于插槽表中的信息，每个模块执行选择功能，用于在机箱中的各个模块之间分配应用程序。代理使用MIB来收集关于机箱的信息并对机箱进行控制，其中每个被管理对象都在本地和远程地登记在每个模块上维护的MIB树中，并且数据在本地维护在被管理的模块上对象驻留。该系统能够在整个系统中分散管理“整体”，并且系统既容错，又能够对管理应用程序进行扩展和修改。

2. 发明申请

WO1997018637A2 DISTRIBUTED CONNECTION-ORIENTED SERVICES FOR SWITCHED COMMUNICATIONS NETWORKS 审中-公开
标题翻译：用于切换通信网络的分布式面向连接的服务
公开(公告)号：WO1997018637A2
公开(公告)日：1997-05-22
申请号：PCT/US1996018629
申请日：1996-11-15
申请人： CABLETRON SYSTEMS, INC.
发明人： CABLETRON SYSTEMS, INC. , DOBBINS, Kurt , GRANT, Thomas, A. , RUFFEN, David, J. , KANE, Laura , LEN, Theodore , ANDLAUER, Philip , BAHI, David, H. , YOHE, Kevin , FEE, Brendan , OLIVER, Chris , CULLEROT, David, L. , SKUBISZ, Michael
IPC分类号： H04B00/00
CPC分类号： H04L41/0213 , H04L12/1886 , H04L12/4641 , H04L45/04 , H04L45/16 , H04L45/24 , H04L45/34 , H04L49/201 , H04L49/351 , H04L49/354 , H04L2212/00
摘要： Method and apparatus providing connection-oriented services for packet switched data communications networks. Directory services include distributed discovery of MAC addresses and protocol alias addresses. Topology services include a link state topology exchange among switches, which provides each switch with a complete topology graph of the network. This enables an access switch receiving a data packet to determine a complete path from a source end system to a destination end system. Another service includes resolution of broadcast frames to unicast frames, in order to reduce the amount of broadcast traffic. Policy restrictions may be applied prior to connection setup. Path determination services enable multiple paths from a source to a destination. Connection management includes source routed mapping of connections on the desired path. A distributed call rerouting service is provided wherein if a link on an active path fails, each switch receives a topology change notification and unmaps any connection involving the failed link. A broadcast/unknown service provides restricted flooding of nonresolvable packets. Furthermore, connection-oriented switching is provided based on the source and destination MAC addresses as a connection identifier. Still further, resolution of networks outside the switch domain is enabled by access switches listening for network and server route advertisements and maintaining best routes to said netowrks and servers. The best route metrics may be combined with best path metrics to determine a path from a first access switch to an egress switch connected to the external network.
摘要翻译：为分组交换数据通信网络提供面向连接的服务的方法和装置。目录服务包括MAC地址和协议别名地址的分布式发现。拓扑服务包括交换机之间的链路状态拓扑交换，为每个交换机提供网络的完整拓扑图。这使得接收数据分组的接入交换机能够确定从源端系统到目的端系统的完整路径。另一种服务包括将广播帧分解成单播帧，以便减少广播流量。在连接设置之前可能会应用策略限制。路径确定服务启用从源到目的地的多条路径。连接管理包括在所需路径上的连接的源路由映射。提供了一种分布式呼叫路由服务，其中如果活动路径上的链路发生故障，则每个交换机接收拓扑变化通知并解除涉及故障链路的任何连接。广播/未知服务提供不可解析包的受限洪泛。此外，基于源和目的地MAC地址作为连接标识符提供面向连接的交换。另外，通过监听网络和服务器路由通告的接入交换机和维护到所述netowrks和服务器的最佳路由来实现交换机域之外的网络的分辨率。最佳路由度量可以与最佳路径度量相结合以确定从第一接入交换机到连接到外部网络的出口交换机的路径。

3. 发明申请

WO1997047113A1 CONNECTION AGGREGATION IN SWITCHED COMMUNICATIONS NETWORKS 审中-公开
标题翻译：切换通信网络中的连接聚合
公开(公告)号：WO1997047113A1
公开(公告)日：1997-12-11
申请号：PCT/US1997009552
申请日：1997-06-02
申请人： CABLETRON SYSTEMS, INC.
发明人： CABLETRON SYSTEMS, INC. , BELSER, David , BUSSIERE, Richard , CIOLI, Jeff , FEE, Brendan , HAGGERTY, William, H.
IPC分类号： H04L12/46
CPC分类号： H04L12/4608
摘要： A method and apparatus are provided for connection-oriented switching in a communications network wherein a pre-established path is established between a select pair of an ingress switch and an egress switch. The use of pre-established paths enables a reduction in the total number of connections required inside the switch cloud, reduces the CPU load on trunk switches, and shortens the time for connection setup. In the embodiment described, the DA/SA fields of a MAC frame data packet are replaced with a "virtual path", which identifies the pre-established path between the ingress and egress switches. A "virtual circuit" is provided in another field of the modified packet which specifies the out-port and out-header on the egress switch for demultiplexing the modified packet upon receipt at the egress switch. The virtual circuit is exchanged between the ingress and egress switches at connection setup. The virtual path is assumed to already be in place, and known to both switches, prior to connection setup.
摘要翻译：在通信网络中提供用于面向连接的交换的方法和装置，其中在入口交换机的选择对和出口交换机之间建立预先建立的路径。使用预先建立的路径可以减少交换机云中所需的连接总数，减少中继交换机的CPU负载，缩短连接设置的时间。在所描述的实施例中，MAC帧数据分组的DA / SA字段被识别出入口和出口交换机之间的预先建立的路径的“虚拟路径”替换。在修改的分组的另一个字段中提供“虚拟电路”，其指定出口交换机上的出端口和出站头，用于在出口交换机接收时解复用修改的分组。在连接设置时，在入口和出口交换机之间交换虚拟电路。在连接建立之前，假设虚拟路径已经到位，并且两个交换机都已知。

4. 发明申请

WO1995020853A1 NETWORKING MODULE AND METHOD FOR FAULT-TOLERANT TRANSMISSION OF SYSTEM MANAGEMENT INFORMATION 审中-公开
标题翻译：网络模块和系统管理信息的容错传输方法
公开(公告)号：WO1995020853A1
公开(公告)日：1995-08-03
申请号：PCT/US1995001177
申请日：1995-01-26
申请人： CABLETRON SYSTEMS, INC.
发明人： CABLETRON SYSTEMS, INC. , FEE, Brendan , OLIVER, Chris
IPC分类号： H04L29/14
CPC分类号： G06F11/2007 , H04L12/44 , H04L41/00 , H04L69/40
摘要： A fault-tolerant module (10) and method for a networking chassis provides a primary path (20) for transmission of system management information and a secondary path (26) for transmission of system management information in the event of failure of the primary path. The primary path includes a first microprocessor controller (22), coupled between the first system management bus and a processor (CPU) (14) located on the networking module. The secondary path includes a second microprocessor controller (28) system and a dual-port memory (30). The second controller system is coupled to the second system management bus and to a first port of the memory, and a second port of the memory is coupled to the CPU. The dual-port memory thus provides an interface between the CPU and the second microprocessor controller system, thus providing isolation and allowing the memory to be accessible by either processor. Environmental information and module identification information are stored in the memory; in the event of failure of the primary path, the information can be accessed and transmitted over the backup transmission path.
摘要翻译：用于组网机箱的容错模块（10）和方法提供用于传输系统管理信息的主路径（20）和用于在主路径故障的情况下传输系统管理信息的辅路径（26）。主路径包括耦合在第一系统管理总线和位于网络模块上的处理器（CPU）（14）之间的第一微处理器控制器（22）。辅助路径包括第二微处理器控制器（28）系统和双端口存储器（30）。第二控制器系统耦合到第二系统管理总线和耦合到存储器的第一端口，并且存储器的第二端口耦合到CPU。因此，双端口存储器提供CPU和第二微处理器控制器系统之间的接口，从而提供隔离并允许任一处理器访问存储器。环境信息和模块识别信息存储在存储器中; 在主路径故障的情况下，可以通过备份传输路径访问和传输信息。

5. 发明授权

EP0741938B1 DISTRIBUTED CHASSIS AGENT FOR NETWORK MANAGEMENT 失效
标题翻译：分布式代理在一个框架用于电源管理
公开(公告)号：EP0741938B1
公开(公告)日：2000-07-19
申请号：EP95908730.5
申请日：1995-01-26
申请人： CABLETRON SYSTEMS, INC.
发明人： FEE, Brendan , DOBBINS, Kurt , ARNESON, David , MULLANEY, Pat
IPC分类号： H04L29/06
CPC分类号： H04L41/0213 , H04L29/06 , H04L41/042 , H04L41/046 , H04L41/24

6. 发明公开

EP0741939A1 NETWORKING MODULE AND METHOD FOR FAULT-TOLERANT TRANSMISSION OF SYSTEM MANAGEMENT INFORMATION 失效
标题翻译：维多利亚州维多利亚州ZER FEHLERTOLERANTENÜBERTRAGUNGVON SYSTEMMANAGEMENTINEMMATION
公开(公告)号：EP0741939A1
公开(公告)日：1996-11-13
申请号：EP95908729.0
申请日：1995-01-26
申请人： CABLETRON SYSTEMS, INC.
发明人： FEE, Brendan , OLIVER, Chris
IPC分类号： G06F11 , G06F13 , H04L12 , H04L29
CPC分类号： G06F11/2007 , H04L12/44 , H04L41/00 , H04L69/40
摘要： A fault-tolerant module (10) and method for a networking chassis provides a primary path (20) for transmission of system management information and a secondary path (26) for transmission of system management information in the event of failure of the primary path. The primary path includes a first microprocessor controller (22), coupled between the first system management bus and a processor (CPU) (14) located on the networking module. The secondary path includes a second microprocessor controller (28) system and a dual-port memory (30). The second controller system is coupled to the second system management bus and to a first port of the memory, and a second port of the memory is coupled to the CPU. The dual-port memory thus provides an interface between the CPU and the second microprocessor controller system, thus providing isolation and allowing the memory to be accessible by either processor. Environmental information and module identification information are stored in the memory; in the event of failure of the primary path, the information can be accessed and transmitted over the backup transmission path.
摘要翻译：用于网络机箱的容错系统管理总线架构包括用于传输系统管理信息的主路径和用于在主路径故障的情况下传输系统管理信息的次路径。主路径包括耦合在第一系统管理总线和位于网络模块上的处理器之间的第一微处理器控制器。用于传输系统管理信息的辅助路径包括第二微处理器控制器系统和双端口存储器。第二微处理器控制系统耦合到第二系统管理总线和双端口存储器。双端口存储器还耦合到位于网络模块上的处理器。双端口存储器提供网络模块中的CPU和第二微处理器控制系统之间的接口，从而提供隔离并允许任一处理器访问存储器。环境信息和模块识别信息存储在双端口存储器中。在主传输路径发生故障的情况下，环境信息和模块识别信息可以通过备份传输路径被访问和传输。

7. 发明授权

EP0903028B1 CONNECTION AGGREGATION IN SWITCHED COMMUNICATIONS NETWORKS 失效
标题翻译： IN CONNECTIONS交换通信网络内容
公开(公告)号：EP0903028B1
公开(公告)日：2004-03-03
申请号：EP97926884.4
申请日：1997-06-02
申请人： CABLETRON SYSTEMS, INC.
发明人： BELSER, David , BUSSIERE, Richard , CIOLI, Jeff , FEE, Brendan , HAGGERTY, William, H.
IPC分类号： H04L12/46
CPC分类号： H04L12/4608
摘要： A method and apparatus are provided for connection-oriented switching in a communications network wherein a pre-established path is established between a select pair of an ingress switch and an egress switch. The use of pre-established paths enables a reduction in the total number of connections required inside the switch cloud, reduces the CPU load on trunk switches, and shortens the time for connection setup. In the embodiment described, the DA/SA fields of a MAC frame data packet are replaced with a "virtual path", which identifies the pre-established path between the ingress and egress switches. A "virtual circuit" is provided in another field of the modified packet which specifies the out-port and out-header on the egress switch for demultiplexing the modified packet upon receipt at the egress switch. The virtual circuit is exchanged between the ingress and egress switches at connection setup. The virtual path is assumed to already be in place, and known to both switches, prior to connection setup.

8. 发明公开

EP0903028A1 CONNECTION AGGREGATION IN SWITCHED COMMUNICATIONS NETWORKS 失效
标题翻译： IN CONNECTIONS交换通信网络内容
公开(公告)号：EP0903028A1
公开(公告)日：1999-03-24
申请号：EP97926884.0
申请日：1997-06-02
申请人： CABLETRON SYSTEMS, INC.
发明人： BELSER, David , BUSSIERE, Richard , CIOLI, Jeff , FEE, Brendan , HAGGERTY, William, H.
IPC分类号： H04L12
CPC分类号： H04L12/4608
摘要： A method and apparatus are provided for connection-oriented switching in a communications network wherein a pre-established path is established between a select pair of an ingress switch and an egress switch. The use of pre-established paths enables a reduction in the total number of connections required inside the switch cloud, reduces the CPU load on trunk switches, and shortens the time for connection setup. In the embodiment described, the DA/SA fields of a MAC frame data packet are replaced with a 'virtual path', which identifies the pre-established path between the ingress and egress switches. A 'virtual circuit' is provided in another field of the modified packet which specifies the out-port and out-header on the egress switch for demultiplexing the modified packet upon receipt at the egress switch. The virtual circuit is exchanged between the ingress and egress switches at connection setup. The virtual path is assumed to already be in place, and known to both switches, prior to connection setup.

9. 发明公开

EP0873626A2 DISTRIBUTED CONNECTION-ORIENTED SERVICES FOR SWITCHED COMMUNICATIONS NETWORKS 失效
标题翻译：分布式连接-为本，服务为交换电信网络
公开(公告)号：EP0873626A2
公开(公告)日：1998-10-28
申请号：EP96945175.0
申请日：1996-11-15
申请人： CABLETRON SYSTEMS, INC.
发明人： DOBBINS, Kurt , GRANT, Thomas, A. , RUFFEN, David, J. , KANE, Laura , LEN, Theodore , ANDLAUER, Philip , BAHI, David, H. , YOHE, Kevin , FEE, Brendan , OLIVER, Chris , CULLEROT, David, L. , SKUBISZ, Michael
IPC分类号： H04L12
CPC分类号： H04L41/0213 , H04L12/1886 , H04L12/4641 , H04L45/04 , H04L45/16 , H04L45/24 , H04L45/34 , H04L49/201 , H04L49/351 , H04L49/354 , H04L2212/00
摘要： Method and apparatus providing connection-oriented services for packet switched data communications networks. Directory services include distributed discovery of MAC addresses and protocol alias addresses. Topology services include a link state topology exchange among switches, which provides each switch with a complete topology graph of the network. This enables an access switch receiving a data packet to determine a complete path from a source end system to a destination end system. Another service includes resolution of broadcast frames to unicast frames, in order to reduce the amount of broadcast traffic. Policy restrictions may be applied prior to connection setup. Path determination services enable multiple paths from a source to a destination. Connection management includes source routed mapping of connections on the desired path. A distributed call rerouting service is provided wherein if a link on an active path fails, each switch receives a topology change notification and unmaps any connection involving the failed link. A broadcast/unknown service provides restricted flooding of nonresolvable packets. Furthermore, connection-oriented switching is provided based on the source and destination MAC addresses as a connection identifier. Still further, resolution of networks outside the switch domain is enabled by access switches listening for network and server route advertisements and maintaining best routes to said netowrks and servers. The best route metrics may be combined with best path metrics to determine a path from a first access switch to an egress switch connected to the external network.

10. 发明公开

EP0741938A1 DISTRIBUTED CHASSIS AGENT FOR NETWORK MANAGEMENT 失效
标题翻译：分布式代理在一个框架用于电源管理
公开(公告)号：EP0741938A1
公开(公告)日：1996-11-13
申请号：EP95908730.0
申请日：1995-01-26
申请人： CABLETRON SYSTEMS, INC.
发明人： FEE, Brendan , DOBBINS, Kurt , ARNESON, David , MULLANEY, Pat
IPC分类号： G06F13 , G06F15 , H04L1 , H04L12 , H04L29
CPC分类号： H04L41/0213 , H04L29/06 , H04L41/042 , H04L41/046 , H04L41/24
摘要： An apparatus and method for allocating the performance of applications in a networking chassis among one or more modules in the chassis. In particular, the system acts as a chassis agent for performing network management functions. The agent performs a discovery function whereby each module discovers the location and current utilization of resources and applications for itself and transmits that information to other modules, and wherein each module maintains a slot table of such information for all modules. Based on the information in the slot table, each module performs an election function for allocating applications among the various modules in the chassis. The agent uses MIBs to gather information about the chassis and to effect control on the chassis, wherein each managed object is registered both locally and remotely in an MIB tree maintained on each module, and the data is maintained locally on the module on which the managed object resides. The system enables the chassis to be managed 'as a whole' while the management functions are distributed across the system, and the system is both fault tolerant and enables ready expansion and modification of the management applications.

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