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公开(公告)号：US06807149B1
公开(公告)日：2004-10-19
申请号：US09617614
申请日：2000-07-17
IPC分类号： H04L100
CPC分类号： H04L1/22 , H04L12/5601 , H04L2012/5617 , H04L2012/5618
摘要： To insure connection resiliency two LECs are defined in normal practice in which a lengthy and extensive recovery procedure is enforced in case of an ATM interface failure. In the present invention only one LEC is configured. This LEC is configured to be If the active ATM interface fails, the bridge is not notified of the failure as would normally happen. The LEC associates itself with the alternate ATM and rejoins the ELAN via the alternate ATM interface. The ELAN Join Procedure is one of the LAN Emulation protocols. After the ELAN has rejoined, the LEC automatically re-establishes the previously existing Data Direct VCCs (bi-directional point to point LAN Emulation connection established from one LEC to another) using its LE_ARP (LAN Emulation Address Resolution Protocol) cache entries.
摘要翻译： 为了确保连接弹性，在正常实践中定义了两个LEC，其中在ATM接口故障的情况下执行冗长和广泛的恢复过程。 在本发明中，仅配置一个LEC。 该LEC被配置为如果活动ATM接口出现故障，则通常不会通知网桥故障。 LEC将自己与备用ATM相关联，并通过备用ATM接口重新加入ELAN。 ELAN Join Procedure是LAN仿真协议之一。 在ELAN重新加入后，LEC使用其LE_ARP（LAN仿真地址解析协议）高速缓存条目自动重建先前存在的数据直接VCC（从一个LEC建立的双向点对点LAN仿真连接到另一个）。
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公开(公告)号：US08619773B2
公开(公告)日：2013-12-31
申请号：US12846811
申请日：2010-07-29
IPC分类号： H04L12/28
摘要： Packets are encapsulated and sent from a service node to one or more application nodes for applying one or more Layer-4 to Layer-7 services to the packets. Before which for a packet, the service node performs a lookup operation based on a destination address of the packet in a routing data structure derived from a exterior network protocol, such as, but not limited to Border Gateway Protocol (BGP). This lookup operation results in the identification of a next hop packet switching device to which the packet would be sent from the service node. The service node includes this identification of the next hop address in the request packet sent to the application node(s). After the service(s) are applied to the packet, an application node will send the services-applied packet to this next hop address. In this manner, application nodes do not need to run an exterior network protocol. Although, they typically will run an Interior Gateway Protocol for identifying how to forward packets to the next hop address.
摘要翻译： 分组被封装并从服务节点发送到一个或多个应用节点，以将一个或多个第4层到第7层服务应用于分组。 在分组之前，服务节点基于来自外部网络协议（例如但不限于边界网关协议（BGP））的路由数据结构中的分组的目的地地址来执行查找操作。 该查找操作导致从服务节点发送分组的下一跳分组交换设备的标识。 服务节点包括发送到应用节点的请求分组中的下一跳地址的标识。 应用程序节点将该服务应用于数据包后，将将应用服务的数据包发送到下一跳地址。 以这种方式，应用节点不需要运行外部网络协议。 虽然，它们通常将运行内部网关协议，用于识别如何将数据包转发到下一跳地址。
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公开(公告)号：US5870589A
公开(公告)日：1999-02-09
申请号：US899024
申请日：1997-07-23
CPC分类号： H04L41/145 , H04L43/16 , H04L61/106 , H04L61/6022 , H04L61/604 , H04L12/5601
摘要： Provided are a method and system for achieving enhanced performance in communications involving one or more emulated networks overlaid onto at least one base network, where the emulation is performed by one or more network emulation servers-broadcast and unknown servers. The objects of the method and system are achieved via the following. Monitoring addresses of data transiting the one or more network emulation servers-broadcast and unknown servers where such monitored addresses are indicative of one or more functions provided by the one or more emulated networks. Tracking the monitored addresses. Comparing the tracked addresses, indicative of on or more functions provided by the one more emulated networks, with one or more prespecified thresholds indicative of monopolization of resources of the at least one emulated network. And, taking corrective action when the aforementioned comparing of addresses indicates that one or more entities associated with the tracked addresses are monopolizing resources of the at least one emulated network such that communications involving the at least one emulated network are enhanced.
摘要翻译： 提供了一种用于在涉及覆盖在至少一个基本网络上的一个或多个仿真网络的通信中实现增强的性能的方法和系统，其中仿真由一个或多个网络仿真服务器（广播和未知服务器）执行。 方法和系统的对象通过以下方式实现。 监视一个或多个网络仿真服务器的数据的地址 - 广播和未知服务器，其中这些监视的地址指示由一个或多个仿真网络提供的一个或多个功能。 跟踪监控的地址。 比较跟踪地址，指示由一个更多仿真网络提供的多个功能的一个或多个预定阈值，其指示所述至少一个仿真网络的资源的垄断。 并且，当前述的地址比较指示与所跟踪的地址相关联的一个或多个实体是所述至少一个仿真网络的垄断资源时，采取纠正措施，使得涉及所述至少一个仿真网络的通信被增强。
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4.发明授权Method and system within a computer network for maintaining source-route information at a router bypassed by shortcut communication 失效计算机网络中的方法和系统，用于在通过快捷通信旁路的路由器上维护源路由信息公开(公告)号：US06452921B1
公开(公告)日：2002-09-17
申请号：US09199071
申请日：1998-11-24
申请人： Cedell Adam Alexander, Jr. , Russell Eugene Gardo , Brahmanand Kumar Gorti , Olen Lee Stokes, Jr.
发明人： Cedell Adam Alexander, Jr. , Russell Eugene Gardo , Brahmanand Kumar Gorti , Olen Lee Stokes, Jr.
IPC分类号： H04L1228
CPC分类号： H04L45/10 , H04L12/4608 , H04L12/5601 , H04L2012/5617 , H04L2012/5668 , H04L2012/5669
摘要： In a data communication internetwork including a source station, an end station, and a default router for the source station, a default communication path including the default router is defined between the source station and the destination station. During operation of the data communication internetwork, a shortcut data communication path by passing the default router is established between the source station and the destination station, such that data packets transmitted by the source station are not received by the default router. After the shortcut communication path has been established, a control frame containing source-route information regarding the source station is transmitted to the router, and the source-route information is stored at the router. In this manner, the default router can efficiently direct data packets to the source station and facilitate the establishment of shortcut communication paths terminating at the source station even though the default router is bypassed by a shortcut communication path.
摘要翻译： 在包括源站，终端站和用于源站的默认路由器的数据通信互联网络中，在源站和目的地站之间定义包括默认路由器的默认通信路径。 在数据通信互联网的运行过程中，在源站与目的站之间建立通过缺省路由器的快捷数据通信路径，使得由源站发送的数据包不被默认路由器接收。 快速通信路径建立后，将包含源站的源路由信息的控制帧发送给路由器，源路由信息存储在路由器上。 以这种方式，默认路由器可以有效地将数据分组引导到源站，并且便于建立在源站终止的快捷通信路径，即使默认路由器被快捷通信路径旁路。
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公开(公告)号：US06178171B1
公开(公告)日：2001-01-23
申请号：US08977459
申请日：1997-11-24
IPC分类号： H04L1228
CPC分类号： H04L29/12018 , H04L12/4608 , H04L29/12009 , H04L45/04 , H04L45/10 , H04L45/26 , H04L45/34 , H04L61/10
摘要： A method is implemented to enable networks employing source-route bridging to participate in route switched, Asynchronous Transfer Mode (ATM), networks. Such source-routed networks, for example, Token-Ring LANs, incorporate an end-to-end route description in the data packets transmitted by the source station. The end-to-end route description is contained in a Route Information Field (RIF). The method implemented herein associates an RIF with the ATM address corresponding to a destination station. This permits the source-route bridged network to exploit the efficiencies of layer-2 connections and the high-speed switching characteristics of the ATM network.
摘要翻译： 实现一种采用源路由桥接的网络参与路由交换，异步传输模式（ATM），网络的方法。 这样的源路由网络，例如，令牌环LAN，在由源站发送的数据分组中包含端到端路由描述。 端到端路由描述包含在路由信息字段（RIF）中。 这里实现的方法将RIF与对应于目的地站的ATM地址相关联。 这允许源路由桥接网络利用二层连接的效率和ATM网络的高速交换特性。
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6.发明授权Method for configuring distributed internet protocol gateways with lan emulation 失效使用LAN仿真配置分布式互联网协议网关的方法
公开(公告)号：US6091732A
公开(公告)日：2000-07-18
申请号：US975481
申请日：1997-11-20
申请人： Cedell Adam Alexander, Jr. , Jimmy Philip Ervin , John Lloyd , Richard Colbert Matlack, Jr. , Deepak Vig
发明人： Cedell Adam Alexander, Jr. , Jimmy Philip Ervin , John Lloyd , Richard Colbert Matlack, Jr. , Deepak Vig
CPC分类号： H04L12/4608
摘要： A communication network having a plurality of routers, each connected to a host system by a LAN network and interconnected by a switched network, the common network using a shared or common IP and MAC address in the routers forming a subnet. Host systems on the same subnet use the shared or common IP address as their default gateway address when accessing host systems on another subnet.
摘要翻译： 具有多个路由器的通信网络，每个路由器各自通过LAN网络连接到主机系统并且由交换网络互连，所述公共网络在形成子网的路由器中使用共享的或公共的IP和MAC地址。 同一子网上的主机系统在访问另一子网上的主机系统时，使用共享或公用IP地址作为其默认网关地址。
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公开(公告)号：US6064675A
公开(公告)日：2000-05-16
申请号：US834047
申请日：1997-04-11
申请人： Cedell Adam Alexander, Jr. , Charles Allen Carriker, Jr. , John Kevin Frick , Edward Joel Rovner , Matthew Blaze Squire , Deepak Vig
发明人： Cedell Adam Alexander, Jr. , Charles Allen Carriker, Jr. , John Kevin Frick , Edward Joel Rovner , Matthew Blaze Squire , Deepak Vig
CPC分类号： H04Q11/0478 , H04L2012/5617 , H04L2012/5618
摘要： An ATM communications network with several ELANs allows steady-state data to be passed between ATM attached devices which bypasses intermediate LECs and bridges. Connected to the ATM communications network is a bridge unit which includes a bridge and associated LECs. Also, an origination ATM attached device and a destination ATM attached device are attached to the ATM communications network via a first by a first ELAN and a second ELAN, respectively. The origination ATM attached device sends a request for an ATM address associated with the destination ATM attached device to the bridge, via the first ELAN. After some processing, the bridge returns the ATM address associated with the destination ATM attached device to the origination ATM attached device. This allows the origination ATM attached device to establish a shortcut VCC with the destination ATM attached device using the ATM address associated with the destination ATM attached device, thereby bypassing intermediate bridges and LECs.
摘要翻译： 具有多个ELAN的ATM通信网络允许在旁路中间LEC和桥接器的ATM连接设备之间传递稳态数据。 连接到ATM通信网络是一个桥接单元，包括一个桥和相关的LEC。 另外，ATM ATM连接装置和目的ATM连接装置分别通过第一ELAN和第二ELAN分别连接到ATM通信网络。 始发ATM连接设备通过第一ELAN将与目的ATM连接设备相关联的ATM地址的请求发送到桥。 经过一些处理后，桥接器将与目的ATM连接设备相关联的ATM地址返回给始发ATM连接设备。 这允许始发的ATM连接设备使用与目的地ATM连接设备相关联的ATM地址与目的地ATM连接设备建立快捷VCC，从而绕过中间网桥和LEC。
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8.发明授权Method and system for providing peer redundancy to asynchronous transfer mode emulated local-area networks 有权为同步传输模式提供对等冗余的模拟局域网的方法和系统公开(公告)号：US06671253B1
公开(公告)日：2003-12-30
申请号：US09400204
申请日：1999-09-21
IPC分类号： G01R3108
CPC分类号： H04L12/4625
摘要： A method and system for providing enhanced peer redundancy in an ATM emulated local area network (ELAN) served by a primary LAN emulation server (LES), a peer LAN emulation server, a broadcast and unknown server (BUS), and a LAN emulation configuration server (LECS). An enhanced peer redundancy virtual channel connection (VCC) is established between the primary LES/BUS and the peer LES/BUS. The primary LES/BUS and the peer LES/BUS exchange status messages every two seconds indicating the number of assigned LECs. If the primary has fewer LECs than the peer, the primary yields to the peer as the active LES/BUS. If an enhanced redundancy VCC was not established, the backup LES/BUS provides ELAN services while waiting for the primary to call to establish an enhanced redundancy VCC. If an enhanced peer redundancy VCC cannot be established, the primary attempts to establish a redundancy VCC with the peer in which the peer LES/BUS is kept in a dormant mode as long as the redundancy VCC is present. If the redundancy VCC is absent, the peer LES/BUS is activated to service the ELAN.
摘要翻译： 一种用于在由主LAN仿真服务器（LES），对等LAN仿真服务器，广播和未知服务器（BUS）以及LAN仿真配置服务的ATM模拟局域网（ELAN）中提供增强的对等冗余的方法和系统 服务器（LECS）。 在主LES / BUS和对等LES / BUS之间建立增强的对等冗余虚拟通道连接（VCC）。 主LES / BUS和对等LES / BUS交换状态消息每隔两秒表示分配的LEC数。 如果主要的LEC比对等体更少，则作为活动的LES / BUS的对等体的主要产出。 如果没有建立增强冗余VCC，则备用LES / BUS提供ELAN服务，同时等待主要呼叫建立增强型冗余VCC。 如果增强对等体冗余VCC不能建立，主要尝试与对等体建立冗余VCC，其中对等体LES / BUS保持在休眠模式，只要存在冗余VCC。 如果不存在冗余VCC，则激活对等体LES / BUS来为ELAN服务。
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公开(公告)号：US06512742B1
公开(公告)日：2003-01-28
申请号：US09207962
申请日：1998-12-09
IPC分类号： G06F714
CPC分类号： H04L45/745 , H04L45/00 , H04L45/245 , Y02D50/30
摘要： A method and system are disclosed for balanced transmitting of data across a link aggregation of k links in a network, where k is not a power of 2, where data is specified by frames each having a source address and a destination address. N bits of the source address and N bits of the destination address are determined to be XORed together where N is greater than 2. An index table with 2N entry positions is created where each of the entry positions is assigned an index number between 0 and 2N−1. The entry positions of the index table are filled with one link of the k links in each entry position by repetitively entering each of the k links until all of the entry positions are filled. The frames of data with identical source address and destination addresses as other frames of data are grouped into a flow. N bits of the source address are XORed together with N bits of the destination address for each flow to obtain an N bit index number for each flow. The index table is accessed with the N bit index number to identify a particular link within the index table. The flow is transmitted across the particular link.
摘要翻译： 公开了一种用于在网络中的k个链路的链路聚合上的数据的平衡传输的方法和系统，其中k不是2的幂，其中数据由具有源地址和目的地址的帧指定。 在N大于2的情况下，源地址的N位和目的地地址的N位被确定为一起进行异或。创建具有2N个入口位置的索引表，其中每个入口位置被分配在0和2N之间的索引号 -1。 索引表的入口位置通过重复输入k个链接中的每一个，直到所有入口位置被填充，填充每个入口位置中的k个链接的一个链接。 具有与其他数据帧相同的源地址和目的地地址的数据帧被分组成流。 源地址的N位与每个流的目标地址的N位进行异或，以获得每个流的N位索引号。 使用N位索引号访问索引表，以标识索引表中的特定链接。 流量通过特定链路传输。
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公开(公告)号：US06501749B1
公开(公告)日：2002-12-31
申请号：US09344652
申请日：1999-06-25
IPC分类号： H04J1500
CPC分类号： H04L49/351 , H04L45/16 , H04L45/245 , H04L49/201 , Y02D50/30
摘要： When multi-destination traffic is distributed through a host or switch, the decision to distribute each frame is performed by each egress port and not the ingress port. Within a link aggregation group, the multi-destination frame is sent to each of the egress ports within the link aggregation group. Each of such ports will then determine whether it should re-transmit the frame. If not, the frame is discarded.
摘要翻译： 当通过主机或交换机分发多目标流量时，分配每个帧的决定由每个出口端口而不是入口端口执行。 在链路聚合组内，多目的帧被发送到链路聚合组内的每个出口端口。 然后，每个这样的端口将确定它是否应该重新发送帧。 如果没有，则丢弃该帧。
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