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1. 发明授权

US06483832B1 IP multicast over routed ATM network using lane 失效
标题翻译：通过路由ATM网络上的IP组播
公开(公告)号：US06483832B1
公开(公告)日：2002-11-19
申请号：US09060292
申请日：1998-04-14
申请人： Seyhan Civanlar , Don Richard Coffield , William J. Leighton, III , Rustom K. Masalawala , Vikram R. Saksena
发明人： Seyhan Civanlar , Don Richard Coffield , William J. Leighton, III , Rustom K. Masalawala , Vikram R. Saksena
IPC分类号： H04L1228
CPC分类号： H04L12/1886 , H04L12/4608 , H04L12/5601 , H04L2012/5615 , H04L2012/5617 , H04L2012/5619 , H04L2012/5642 , H04L2012/5645 , H04L2012/5667 , H04Q11/0478
摘要： A method and a system for forwarding multicast data packets across a plurality of telecommunications subnets interconnected by routers in which a data packet is received within a subnet of the plurality of telecommunications subnets. When the data packet is a multicast data packet, a multicast IP address for the multicast data packet is determined. A multicast forwarding database is accessed for determining a LAN Emulation Client associated with the multicast IP address, and a Broadcast Unknown Server associated with the multicast IP address for the multicast data packet is determined. The multicast data packet is sent to the Broadcast Unknown Server associated with the multicast IP address for the multicast data packet through the LAN Emulation Client using a point-to-point connection. The Broadcast Unknown Server sends the multicast data packet inter-subnet to each router associated with the multicast IP address for the multicast data packet using a point-to-multipoint connection, with at least one multicast host being connected to a subnet that is different from the subnet in which the multicast data packet was received.
摘要翻译：一种用于在由多个电信子网互连的多个电信子网中转发多播数据分组的方法和系统，其中数据分组在多个电信子网的子网内被接收。当数据包是组播数据包时，确定组播数据包的组播IP地址。访问多播转发数据库以确定与多播IP地址相关联的LAN仿真客户端，并且确定与组播数据分组的多播IP地址相关联的广播未知服务器。组播数据包通过LAN Emulation Client使用点对点连接发送到与组播数据包的组播IP地址相关联的广播未知服务器。广播未知服务器使用点对多点连接将组播数据分组子网发送到与组播数据分组的组播IP地址相关联的每个路由器，至少一个组播主机连接到不同于接收组播数据包的子网。

2. 发明授权

US06385193B1 Wan-based gateway 有权
公开(公告)号：US06385193B1
公开(公告)日：2002-05-07
申请号：US09825651
申请日：2001-04-04
申请人： Seyhan Civanlar , Don Richard Coffield , William J. Leighton, III , James J. Mansell , Vikram R. Saksena
发明人： Seyhan Civanlar , Don Richard Coffield , William J. Leighton, III , James J. Mansell , Vikram R. Saksena
IPC分类号： H04L1266
CPC分类号： H04L61/1529 , H04L12/2854 , H04L12/6418 , H04L12/66 , H04L29/06 , H04L29/06027 , H04L29/12009 , H04L29/12018 , H04L29/12094 , H04L29/12349 , H04L61/10 , H04L61/2507 , H04L65/1026 , H04L65/1036 , H04L65/1069 , H04L69/08 , H04L69/16 , H04L69/169 , H04L2012/5618 , H04L2012/5619 , H04L2012/563 , H04L2012/5645 , H04L2012/5652 , H04L2012/5667 , H04L2012/567 , H04L2012/6472 , H04L2012/6481 , H04M7/125 , H04M7/126 , H04Q3/0025 , H04Q3/0045 , H04Q11/0478
摘要： In one embodiment of the invention, an apparatus is provided for establishing a communication session between first and second terminals in communication over a plurality of networks that employ differing transmission standards. The plurality of networks are selected from among a circuit switched network (e.g., a telephony network), a connectionless packet switched network (e.g., the Internet) and a connection-oriented packet switched network (e.g., an ATM or frame relay network). The apparatus includes a call set-up translator for translating among call set-up protocols associated with the circuit switched network, the connectionless packet switched network and the connection-oriented packet switched network. An encoding format translator is provided for translating among encoding protocols associated with the circuit switched network, the connectionless packet switched network and the connection-oriented packet switched network. Also provided is an address database for storing a plurality of addresses in different formats for each registered terminal, which includes the first and second terminals. The apparatus also includes a session manager for storing control information relating to the first and second terminals. The control information includes an identification of the first and second terminals that participate in the communication session.

3. 发明授权

US06339594B1 Wan-based gateway 有权
公开(公告)号：US06339594B1
公开(公告)日：2002-01-15
申请号：US09187351
申请日：1998-11-06
申请人： Seyhan Civanlar , Don Richard Coffield , William J. Leighton, III , James J. Mansell , Vikram R. Saksena
发明人： Seyhan Civanlar , Don Richard Coffield , William J. Leighton, III , James J. Mansell , Vikram R. Saksena
IPC分类号： H04L1266
CPC分类号： H04L61/1529 , H04L12/2854 , H04L12/6418 , H04L12/66 , H04L29/06 , H04L29/06027 , H04L29/12009 , H04L29/12018 , H04L29/12094 , H04L29/12349 , H04L61/10 , H04L61/2507 , H04L65/1026 , H04L65/1036 , H04L65/1069 , H04L69/08 , H04L69/16 , H04L69/169 , H04L2012/5618 , H04L2012/5619 , H04L2012/563 , H04L2012/5645 , H04L2012/5652 , H04L2012/5667 , H04L2012/567 , H04L2012/6472 , H04L2012/6481 , H04M7/125 , H04M7/126 , H04Q3/0025 , H04Q3/0045 , H04Q11/0478
摘要： In one embodiment of the invention, an apparatus is provided for establishing a communication session between first and second terminals in communication over a plurality of networks that employ differing transmission standards. The plurality of networks are selected from among a circuit switched network (e.g., a telephony network), a connectionless packet switched network (e.g., the Internet) and a connection-oriented packet switched network (e.g., an ATM or frame relay network). The apparatus includes a call set-up translator for translating among call set-up protocols associated with the circuit switched network, the connectionless packet switched network and the connection-oriented packet switched network. An encoding format translator is provided for translating among encoding protocols associated with the circuit switched network, the connectionless packet switched network and the connection-oriented packet switched network. Also provided is an address database for storing a plurality of addresses in different formats for each registered terminal, which includes the first and second terminals. The apparatus also includes a session manager for storing control information relating to the first and second terminals. The control information includes an identification of the first and second terminals that participate in the communication session.

4. 发明授权

US06298120B1 Intelligent processing for establishing communication over the internet 失效
标题翻译：通过互联网建立通信的智能处理
公开(公告)号：US06298120B1
公开(公告)日：2001-10-02
申请号：US08671747
申请日：1996-06-28
申请人： Seyhan Civanlar , William J. Leighton, III , Vikram R. Saksena
发明人： Seyhan Civanlar , William J. Leighton, III , Vikram R. Saksena
IPC分类号： H04M164
CPC分类号： H04L67/16 , H04L29/06 , H04M3/4228 , H04M7/006 , H04M7/12 , H04M15/00 , H04M15/56 , H04M2215/202 , H04Q3/0029 , H04Q2213/13504 , Y10S379/901
摘要： A method is disclosed for establishing communication between an originating station and a destination station over a computer network such as the Internet, for example. In accordance with the invention, at least one service attribute requested by the originating station is received over a signaling path. A communication path is then established between the originating and destination stations in conformance with the requested service attribute. The signaling path is an out-of-band signaling path with respect to the communication path.
摘要翻译：公开了一种用于通过计算机网络（例如因特网）在始发站和目的地站之间建立通信的方法。根据本发明，通过信令路径接收由始发站请求的至少一个服务属性。然后根据所请求的服务属性在始发站和目的地站之间建立通信路径。信令路径是相对于通信路径的带外信令路径。

5. 发明授权

US6078963A Router with de-centralized processing using intelligent ports 失效
标题翻译：路由器采用智能端口进行集中处理
公开(公告)号：US6078963A
公开(公告)日：2000-06-20
申请号：US008493
申请日：1998-01-16
申请人： Seyhan Civanlar , Vikram R. Saksena
发明人： Seyhan Civanlar , Vikram R. Saksena
IPC分类号： H04L12/701 , H04L12/713 , H04L12/747 , H04L12/933 , G06F13/00
CPC分类号： H04L45/00 , H04L45/586 , H04L45/742 , H04L49/101
摘要： An improved network router having a plurality of intelligent router ports. Each intelligent router port may have its own routing and/or forwarding engines. Thus, a centralized master routing and forwarding engine, existing in conventional routers, is not necessary. Accordingly, the bottlenecking problems associated with a centralized routing and forwarding engine are significantly reduced.
摘要翻译：具有多个智能路由器端口的改进的网络路由器。每个智能路由器端口可以具有其自己的路由和/或转发引擎。因此，传统路由器中存在的集中式主路由和转发引擎不是必需的。因此，与集中式路由和转发引擎相关联的瓶颈问题显着降低。

6. 发明授权

US5805805A Symmetric method and apparatus for interconnecting emulated lans 失效
标题翻译：用于互连仿真蓝牙的对称方法和装置
公开(公告)号：US5805805A
公开(公告)日：1998-09-08
申请号：US511430
申请日：1995-08-04
申请人： Seyhan Civanlar , Vikram R. Saksena
发明人： Seyhan Civanlar , Vikram R. Saksena
IPC分类号： H04L12/46 , H04L12/56 , H04Q11/04 , G06F13/14
CPC分类号： H04L12/4608 , H04Q11/0478 , H04L2012/5617
摘要： Multiple LAN emulation servers (LESs) and broadcast and unknown servers (BUSs) are employed to serve a single emulated LAN (ELAN). The LAN emulation clients (LECs) are assigned to sub-ELANs, each of which includes several LECs of the ELAN, e.g., those that are geographically close. Each such sub-ELAN includes its own LES and BUS. The LESs and BUSs of the sub-ELANs are connected so that the sub-ELANs form a single ELAN. The LESs/BUSs can be interconnected in any pattern that allows each LES/BUS to communicate with each other LES/BUS via at least one path, which need not be direct. The LES and BUS of each sub-ELAN presents themselves as proxy-LECs of the other sub-ELANs to which they are connected. The ELAN can include a LAN Emulation Configuration Server (LECS) for downloading the connection topology and forwarding rules to all the sub-ELANs. The topology and rules are downloaded each time the ELAN is configured, e.g., initially and when the network topology changes due to failures of servers or addition and deletion of servers.
摘要翻译：采用多个LAN仿真服务器（LES）和广播和未知服务器（BUS）来服务单个仿真LAN（ELAN）。 LAN仿真客户机（LEC）被分配给子ELAN，每个子系统包括ELAN的几个LEC，例如那些在地理上接近的LEC。每个这样的子ELAN包括它自己的LES和BUS。子ELAN的LES和BUS连接，使得子ELAN形成单个ELAN。 LES / BUS可以以任何模式互连，允许每个LES / BUS通过至少一个不需要直接的路径彼此通信LES / BUS。每个子ELAN的LES和BUS表现为与其相连的其他子-ELAN的代理LEC。 ELAN可以包括用于将连接拓扑和转发规则下载到所有子ELAN的LAN仿真配置服务器（LECS）。每次配置ELAN时都会下载拓扑和规则，例如，最初和网络拓扑结构由于服务器故障或服务器的添加和删除而发生变化。

7. 发明授权

US5600644A Method and apparatus for interconnecting LANs 失效
标题翻译：用于互连LAN的方法和装置
公开(公告)号：US5600644A
公开(公告)日：1997-02-04
申请号：US402235
申请日：1995-03-10
申请人： Tian-Pong P. Chang , Seyhan Civanlar , Vikram R. Saksena
发明人： Tian-Pong P. Chang , Seyhan Civanlar , Vikram R. Saksena
IPC分类号： H04L12/46 , H04L12/56 , H04Q11/04
CPC分类号： H04L12/4608 , H04Q11/0478 , H04L2012/5615 , H04L2012/5619
摘要： A so-called "ELAN contronect network" is employed to interconnect sub-ELANs to form an ELAN. More specifically, the "ELAN contronect network" is a separate network for interconnecting the servers of the sub-ELANs, where a sub-ELAN is a part of an ELAN having its own LES and BUS that may also be configured as a stand-alone ELAN. Each of the sub-ELANs is connected to the ELAN contronect network via a point-to-point connection-oriented connection, e.g., an asynchronous transfer mode (ATM) connection and the ELAN contronect network is configured to present itself to each of the servers of the sub-ELANs as clients thereof. In a particular embodiment of the invention, the ELAN contronect network includes an address server, a broadcast/route server, a configuration server, multimedia servers, and at least one LAN hub interconnected over a high-speed backbone. The address server contains an address data base for performing address resolution between the at least two addresses of each ELAN end-point in response to requests for such translations. The broadcast/route server receives data packets for broadcast to a different sub-ELAN from which the packets originated and broadcasts the received data packets to at least one other sub-ELAN. The broadcast/route server also recognizes that a packet which is a broadcast packet at layer 2 is actually a request for an address resolution at layer 3. If so, the broadcast/route server collaborates with the address server to perform the necessary address resolution and insures that a response is sent only to the client originating the request.
摘要翻译：使用所谓的“ELAN contronect网络”来互连子ELAN以形成ELAN。更具体地说，“ELAN contronect网络”是用于互连子ELAN的服务器的单独网络，其中sub-ELAN是具有其自己的LES和BUS的ELAN的一部分，其也可以被配置为独立的 ELAN。每个子ELAN通过点对点连接取向连接（例如，异步传输模式（ATM））连接连接到ELAN互斥网络，并且ELAN对抗网络被配置为向自己呈现每个服务器的子ELAN作为其客户。在本发明的特定实施例中，ELAN对抗网络包括地址服务器，广播/路由服务器，配置服务器，多媒体服务器以及通过高速骨干网互连的至少一个LAN集线器。地址服务器包含地址数据库，用于响应于对这种翻译的请求，在每个ELAN终点的至少两个地址之间执行地址解析。广播/路由服务器接收用于广播的数据分组到发起分组的不同子ELAN，并将接收到的数据分组广播到至少一个其他子-ELAN。广播/路由服务器还认识到，在层2处作为广播分组的分组实际上是在层3处的地址解析请求。如果是，则广播/路由服务器与地址服务器协作以执行必要的地址解析和确保响应仅发送给发起请求的客户端。

8. 发明授权

US5996021A Internet protocol relay network for directly routing datagram from ingress router to egress router 失效
标题翻译：互联网协议中继网络，用于从入口路由器到出口路由器直接路由数据报
公开(公告)号：US5996021A
公开(公告)日：1999-11-30
申请号：US859315
申请日：1997-05-20
申请人： Seyhan Civanlar , Vikram R. Saksena
发明人： Seyhan Civanlar , Vikram R. Saksena
IPC分类号： H04Q3/00 , H04L12/46 , H04L12/56 , H04L29/06 , H04Q11/04 , G06F13/00
CPC分类号： H04L45/00 , H04L12/4608 , H04L29/06 , H04Q11/0478 , H04L2012/5667 , H04L2012/5668
摘要： An internetwork relay system and method for transmitting IP traffic including an edge and a core. The edge includes an ingress and egress routers and the core includes a switch network. The ingress router communicates with and receives an IP packet from a source network. The ingress router attaches to each IP packet, a globally unique label which is used to forward the IP packet across the network. The relay switch network communicates with the ingress router, receives the IP packet from the ingress router and forwards the IP packet along its transmission path based on destination information included in its attached label. The egress router receives the IP packet from the switch network and forwards it to a destination network. Once received, the destination network forwards the IP packet to its intended destination.
摘要翻译：一种用于传输包括边缘和核心的IP业务的互联网络中继系统和方法。边缘包括入口和出口路由器，核心包括交换机网络。入口路由器与来自源网络的IP数据包进行通信和接收。入口路由器附加到每个IP分组，全局唯一的标签，用于通过网络转发IP分组。中继交换机网络与入口路由器进行通信，从入口路由器接收IP包，并根据其附加标签中包含的目的地信息，沿其传输路径转发IP包。出口路由器从交换机网络接收IP包并将其转发到目的网络。一旦接收到，目的网络将IP包转发到其预定的目的地。

9. 发明授权

US5812552A Method and apparatus for dynamically forming multimedia emulated local area networks 失效
标题翻译：动态形成多媒体仿真局域网的方法和装置
公开(公告)号：US5812552A
公开(公告)日：1998-09-22
申请号：US618483
申请日：1996-03-19
申请人： Vivek Arora , Larry H. Chang , Seyhan Civanlar , Vikram R. Saksena , Agnes C. Tow
发明人： Vivek Arora , Larry H. Chang , Seyhan Civanlar , Vikram R. Saksena , Agnes C. Tow
IPC分类号： H04L12/18 , H04L12/46 , H04L12/56 , H04Q11/04 , H04L12/28
CPC分类号： H04Q11/0478 , H04L12/4608 , H04L2012/5615 , H04L2012/5619 , H04L2012/5641 , H04L2012/5642
摘要： A temporary multimedia ELAN is formed on top of one or more existing ELANs between those end-stations (121-1, 121-2, 111-1) participating in a multimedia session, such as a video conference, at the time of initiating the session. At the end of the session the temporary ELAN is torn down. When the temporary ELAN is created an available LAN Emulation Server (LES) (241) and an available Broadcast and Unknown Server (BUS) (243) are allocated to serve those end-stations participating in the multimedia session. The BUS also serves as a multicast server to multicast a multimedia stream from one end-station to each other end-station on the temporary ELAN. The initiator of a session accesses a Multimedia Session Manager (401), which oversees and manages the session and coordinates the necessary resources. An ELAN Configuration (402) serves to dynamically assign IP addresses to end-stations to ensure that each end-station on the temporary ELAN is on a single subnet, to receive the configuration attributes of each end-station that is to be connected on the temporary ELAN, to find an available LES and BUS to serve the temporary multimedia ELAN, and to coordinate establishment of the temporary ELAN between the end-stations. Once the temporary ELAN has been formed, a Conference Configurator (403) starts executing a multimedia application already existing on each end-station or sends the executables of the selected multimedia application in real time to each end-station. During the session the Multimedia Session Manager is used to add a new end-station, drop an end-station, and terminate the session.
摘要翻译：临时多媒体ELAN形成在参与诸如视频会议的多媒体会话的那些终端站（121-1,121-2,111-1）之间的一个或多个现有ELAN的顶部，在启动时会话在会议结束时，临时ELAN被拆毁。当创建临时ELAN时，分配可用的LAN仿真服务器（LES）（241）和可用的广播和未知服务器（BUS）（243）来为参与多媒体会话的那些终端服务。 BUS还用作组播服务器，以将临时ELAN上的一个终端站的多媒体流多播到另一个终端站。会话的发起者访问多媒体会话管理器（401），监视和管理会话并协调必要的资源。 ELAN配置（402）用于向终端站动态分配IP地址，以确保临时ELAN上的每个终端站在单个子网上，以接收将要连接的每个终端站的配置属性临时ELAN，找到可用的LES和BUS服务于临时多媒体ELAN，并协调终端之间临时ELAN的建立。一旦临时ELAN已经形成，会议配置器（403）开始执行已经存在于每个终端站上的多媒体应用，或者将所选择的多媒体应用的可执行程序实时地发送到每个终端站。在会话期间，多媒体会话管理器用于添加新的终端站，丢弃终端站，并终止会话。

10. 发明授权

US5737333A Method and apparatus for interconnecting ATM-attached hosts with telephone-network attached hosts 失效
标题翻译：将ATM连接的主机与电话网络连接的主机互连的方法和装置
公开(公告)号：US5737333A
公开(公告)日：1998-04-07
申请号：US494121
申请日：1995-06-23
申请人： Seyhan Civanlar , Vikram R. Saksena
发明人： Seyhan Civanlar , Vikram R. Saksena
IPC分类号： H04L12/46 , H04L12/56 , H04L12/64 , H04Q11/04
CPC分类号： H04L12/4612 , H04L12/4608 , H04L12/6418 , H04Q11/0428 , H04Q11/0464 , H04J2203/0089 , H04L2012/5614 , H04L2012/562 , H04L2012/5663 , H04L2012/6429 , H04L2012/6443 , H04L2012/6472 , H04L2012/6475 , H04Q2213/13093 , H04Q2213/13103 , H04Q2213/13141 , H04Q2213/13196 , H04Q2213/13199 , H04Q2213/13204 , H04Q2213/13205 , H04Q2213/13209 , H04Q2213/1329 , H04Q2213/13389
摘要： Communication, for example, via the internet protocol (IP), is facilitated among ATM-attached, LAN-attached and telephone-network-attached hosts, by a so-called "RouTel" and an address server. The RouTel provides gateway capabilities for connecting a) the telephone network, e.g., via 1) integrated services digital network basic rate interface (ISDN BRI), 2) ISDN primary rate interface (ISDN PRI), or 3) modem interfaces, and b) an ATM network, via one or more ATM interfaces. Optionally, the RouTel provides interfaces for directly attaching legacy LANs, e.g., Ethernet, FDDI, and Token Ring. More particularly, the RouTel can perform IP packet forwarding between 1) a telephone-network-attached host and an ATM-attached host; 2) two telephone-network-attached hosts; and 3) a telephone-network-attached host and a legacy LAN-attached host.
摘要翻译：通过所谓的“RouTel”和地址服务器，例如通过因特网协议（IP）进行通信，通过ATM连接，LAN连接和电话网络连接的主机来实现。 RouTel提供用于连接a）电话网络的网关功能，例如通过1）综合业务数字网络基本速率接口（ISDN BRI），2）ISDN主速率接口（ISDN PRI）或3）调制解调器接口，以及b） ATM网络，经由一个或多个ATM接口。可选地，RouTel提供用于直接附接传统LAN的接口，例如以太网，FDDI和令牌环。更具体地，RouTel可以在1）连接电话网络的主机和与ATM连接的主机之间执行IP分组转发; 2）两台电话网络主机; 和3）连接电话网络的主机和传统LAN连接的主机。

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