公开(公告)号：US6016319A

公开(公告)日：2000-01-18

申请号：US714704

申请日：1996-09-11

申请人： Madhukar M. Kshirsagar ,  Thomas F. La Porta ,  David H. Shur ,  Malathi Veeraraghavan ,  Clark Woodworth

发明人： Madhukar M. Kshirsagar ,  Thomas F. La Porta ,  David H. Shur ,  Malathi Veeraraghavan ,  Clark Woodworth

IPC分类号： H04L12/46 ,  H04L12/56 ,  H04Q11/04 ,  H04L12/28

CPC分类号： H04L12/4608 ,  H04Q11/0478 ,  H04L2012/5626 ,  H04L2012/5645 ,  H04L2012/5667 ,  H04L2012/5668

摘要： A communications system for transporting connectionless datagrams over a connection-oriented network is arranged to remove the address resolution function and the connection setup function from a sending host and combine them in a third-party connection server in conjunction with channel management at connection-oriented routing points. The third party request protocol can be used for Classical connectionless over a connection oriented network, legacy LAN emulation and Routing Over Large Clouds.

公开(公告)号：US5909441A

公开(公告)日：1999-06-01

申请号：US840313

申请日：1997-04-11

申请人： Cedell Adam Alexander, Jr. ,  Edward Joel Rovner ,  Sonia Kiang Rovner

发明人： Cedell Adam Alexander, Jr. ,  Edward Joel Rovner ,  Sonia Kiang Rovner

IPC分类号： H04L12/46 ,  H04L12/56 ,  H04Q11/04 ,  H04L12/28

CPC分类号： H04Q11/0478 ,  H04L12/4608 ,  H04L2012/5617 ,  H04L2012/5668

摘要： To ensure a LES issues address resolution responses when necessary, an association between a MAC/ATM address pair and an intersubnet shortcut virtual channel connection (VCC) is registered. When the LES receives a first data frame being sent from a first station to a second station, with the second station having a MAC address associated with a shortcut VCC, a second data frame is created. The second data frame has as a source address the MAC address. The second frame is sent to devices associated with the first station so that the devices may learn the origination point for the second station and can issue messaging necessary to establish an shortcut VCC. In addition, frame loss reduction in an ATM communications network is accomplished by registering an association between a MAC address of a router associated with a MAC/ATM address pair, and a shortcut VCC. After the association is registered, a data frame being sent from a first station to a second station is received. The second station has the same MAC address as the MAC/ATM address pair. The destination MAC address of the data frame is replaced with the MAC address of the router, wherein the data frame can now be delivered. Also, a first station is prevented from having to wait to send data to a second station over a newly created shortcut VCC by registering an association between a MAC/ATM address pair and a shortcut VCC. Next, a flush request message from an edge device on an ELAN is received. The flush request has a destination ATM address equal to the ATM address of the MAC/ATM address pair. A flush response message is sent to the edge device, where upon receiving the flush response message, the edge device will start sending data from the first station to the second station over the newly created shortcut VCC.

摘要翻译： 为了确保LES在必要时发布地址解析响应，注册MAC / ATM地址对与子网间快捷虚拟通道连接（VCC）之间的关联。 当LES接收到从第一站发送到第二站的第一数据帧时，第二站具有与快捷方式VCC相关联的MAC地址，产生第二数据帧。 第二个数据帧作为MAC地址的源地址。 第二帧被发送到与第一站相关联的设备，使得设备可以学习第二站的发起点并且可以发出建立快捷方式VCC所需的消息。 此外，ATM通信网络中的帧丢失减少通过注册与MAC / ATM地址对相关联的路由器的MAC地址与快捷方式VCC之间的关联来实现。 在关联被注册之后，接收从第一站发送到第二站的数据帧。 第二站具有与MAC / ATM地址对相同的MAC地址。 数据帧的目标MAC地址被路由器的MAC地址替换，其中现在可以传送数据帧。 此外，通过注册MAC / ATM地址对和快捷方式VCC之间的关联，防止第一站等待通过新创建的快捷方式VCC向第二站发送数据。 接下来，接收来自ELAN上的边缘设备的刷新请求消息。 刷新请求具有等于MAC / ATM地址对的ATM地址的目的地ATM地址。 向边缘设备发送刷新响应消息，其中在接收到刷新响应消息时，边缘设备将通过新创建的快捷方式VCC开始从第一站向第二站发送数据。

公开(公告)号：US06314105B1

公开(公告)日：2001-11-06

申请号：US09081526

申请日：1998-05-19

申请人： Steven V. Luong

发明人： Steven V. Luong

IPC分类号： H04L1228

CPC分类号： H04Q11/0478 ,  H04L45/10 ,  H04L45/123 ,  H04L45/22 ,  H04L2012/562 ,  H04L2012/5668

摘要： A system and method are disclosed for determining when to set up or tear down such a temporary transit path so that temporary transit paths are set up when they are needed and torn down when they are no longer needed. A temporary transit path is set up when the bit rate exceeds a first threshold. The temporary transit path is torn down when the bit rate is less than a second threshold. The temporary transit path is set up or torn down between a source station's router and a next hop router. The temporary transit path is set up within a subnetwork that includes the source station, the next hop router, and an intermediate router that is interconnected by a plurality of permanent transit paths to the source station and the next hop router. In one embodiment, a method for creating a temporary path for data packet transmission in the subnetwork is disclosed. Transmission of the data packets is initiated over the permanent transit paths that are coupled between the source station and the next hop router. A bit rate of the data packets from the source station to the next hop router is measured after initiating the transmission. Data packets transmission over the permanent transit paths is continued when the measured bit rate is below a first predetermined value. A temporary transit path between the source station and the next hop router is created when the measured bit rate is above the first predetermined value. The data packets are transmitted over the created temporary transit path when the measured bit rate is above the first predetermined value. In a preferred embodiment, the bit rate is measured again after creating the temporary transit path and transmitting the data packets over the created temporary transit path. The created temporary transit path is torn down when the bit rate is below the second predetermined value. Transmission of the data packets is sent over the permanent transit paths from the source station to the next hop routers once the temporary transit path is torn down.

公开(公告)号：US5909446A

公开(公告)日：1999-06-01

申请号：US907831

申请日：1997-08-14

申请人： Koichi Horikawa ,  Atsushi Iwata

发明人： Koichi Horikawa ,  Atsushi Iwata

IPC分类号： H04L29/06 ,  H04L12/28 ,  H04L12/66 ,  H04L12/70 ,  H04L12/701 ,  H04L29/12 ,  H04Q11/04 ,  H04J3/11

CPC分类号： H04L29/12018 ,  H04L29/12009 ,  H04L61/10 ,  H04Q11/0478 ,  H04L2012/5668

摘要： In an NHRP (NBMA Next Hop Resolution Protocol) address resolution system for transforming a network layer address to a data link layer address in an NBMA (Non-Broadcast, Multi-Access) network not sharing media, an NHRP processing section provides a function of resolving an address while an ATMARP (Asynchronous Transfer Mode Address Resolution Protocol) processing section provides a function of resolving an address on the basis of the ATMARP. A holding section is selectively accessed by the NHRP processing section or ATMARP processing section for holding address information registered by the NHRP or address information registered by the ATMARP. When the NHRP processing section receives an NHRP resolution request packet requesting for a resolution of the address of a given ATMARP terminal's address, the processing section sends, if the ATMARP terminal and a terminal sent the NHRP resolution request packet do not belong to the same subnetwork, a reply representative of the address information of an interface received the request packet.

摘要翻译： 在用于将网络层地址变换为不共享媒体的NBMA（非广播，多址）网络中的数据链路层地址的NHRP（NBMA下一跳解决协议）地址解析系统中，NHRP处理部分提供 当ATMARP（异步传输模式地址解析协议）处理部分提供基于ATMARP解析地址的功能时，解析地址。 由NHRP处理部分或ATMARP处理部分选择性地访问保持部分，用于保存由NHRP登记的地址信息或由ATMARP登记的地址信息。 当NHRP处理部分接收到要求分配给定ATMARP终端地址的地址的NHRP解析请求分组时，如果ATMARP终端和发送的NHRP解析请求分组的终端不属于同一个子网络，则处理部分发送 接收到接收到请求分组的接口的地址信息的回复代表。

公开(公告)号：US06483853B1

公开(公告)日：2002-11-19

申请号：US09412490

申请日：1999-10-05

申请人： Madhukar M. Kshirsagar ,  Thomas F. La Porta ,  David H. Shur ,  Malathi Veeraraghavan ,  Clark Woodworth

发明人： Madhukar M. Kshirsagar ,  Thomas F. La Porta ,  David H. Shur ,  Malathi Veeraraghavan ,  Clark Woodworth

IPC分类号： H04J316

CPC分类号： H04L12/4608 ,  H04L2012/5626 ,  H04L2012/5645 ,  H04L2012/5667 ,  H04L2012/5668 ,  H04Q11/0478

摘要： A communications system for transporting connectionless datagrams over a connection-oriented network is arranged to remove the address resolution function and the connection setup function from a sending host and combine them in a third-party connection server in conjunction with channel management at connection-oriented routing points. The third party request protocol can be used for Classical connectionless over a connection oriented network, legacy LAN emulation and Routing Over Large Clouds.

摘要翻译： 用于在面向连接的网络上传送无连接数据报的通信系统被布置成从发送主机移除地址解析功能和连接建立功能，并将它们结合在第三方连接服务器中并结合在面向连接的路由的信道管理 积分 第三方请求协议可以用于通过面向连接的网络，传统LAN仿真和大型云计算的经典无连接。

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。

公开(公告)号：US5568477A

公开(公告)日：1996-10-22

申请号：US495774

申请日：1995-06-27

申请人： Claude Galand ,  Xavier Jacquart ,  Gerald Lebizay ,  Jean-yves Leboudec ,  Philippe Louis ,  Clement Poiraud ,  Eric S. Georges ,  Victor Spagnol ,  Edward Suffern ,  Hong L. Truong

发明人： Claude Galand ,  Xavier Jacquart ,  Gerald Lebizay ,  Jean-yves Leboudec ,  Philippe Louis ,  Clement Poiraud ,  Eric S. Georges ,  Victor Spagnol ,  Edward Suffern ,  Hong L. Truong

IPC分类号： H04Q3/00 ,  H04L12/56 ,  H04L12/64 ,  H04Q11/04 ,  H04J3/24

CPC分类号： H04L49/3009 ,  H04L49/30 ,  H04L49/3081 ,  H04Q11/0478 ,  H04L2012/5662 ,  H04L2012/5668 ,  H04L49/20 ,  H04L49/25

摘要： A multipurpose data communication network node for interconnecting both ATM and Variable Length (VL) input/output trunks with all combinations of node input versus output trunk connections. The network node includes ATM/VL Receive Adapters and ATM/VL Transmit Adapters, interconnected via a Switching device (44) operating on ATM like packets (i.e. ATM cells) only. The receive adapter includes means (41, 43) for deriving switchable cells from VL traffic possibly including ATM packets and provided over an input VL trunk and means (45, 46) for deriving switchable cells from ATM packets provided on input ATM trunk. The transmit adapter, includes means (47, 48) for reconstructing VL traffic to be fed onto an output VL trunk, and means (49, 50) for reconstructing ATM traffic to be fed onto an output ATM trunk; both means (47, 48) and (49, 50) being fed with switchable cells irrespective of the traffic origin, being it from VL or ATM trunks.

摘要翻译： 用于将ATM和可变长度（VL）输入/输出中继线与节点输入与输出中继线连接的所有组合相互连接的多用途数据通信网络节点。 网络节点包括ATM / VL接收适配器和ATM / VL发送适配器，其通过仅在ATM上作为分组（即ATM信元）运行的交换设备（44）互连。 接收适配器包括用于从可能包括ATM分组并经由输入VL中继提供的VL业务导出可切换小区的装置（41,43）以及用于从提供在输入ATM中继线上的ATM分组导出可切换小区的装置（45,46）。 发射适配器包括用于重建要馈送到输出VL中继线上的VL业务的装置（47,48），以及用于重建要馈送到输出ATM中继线上的ATM业务的装置（49,50） 两个装置（47,48）和（49,50）都与可交换电池一起馈送，而不管交通来源是否来自VL或ATM中继线。

公开(公告)号：US07039055B1

公开(公告)日：2006-05-02

申请号：US09944861

申请日：2001-08-31

申请人： Steven V. Luong

发明人： Steven V. Luong

IPC分类号： H04L12/28 ,  H04J1/16

CPC分类号： H04Q11/0478 ,  H04L45/10 ,  H04L45/123 ,  H04L45/22 ,  H04L2012/562 ,  H04L2012/5668

摘要： A system and method are disclosed for determining when to set up or tear down such a temporary transit path so that temporary transit paths are set up when they are needed and torn down when they are no longer needed. A temporary transit path is set up when the bit rate exceeds a first threshold. The temporary transit path is torn down when the bit rate is less than a second threshold. The temporary transit path is set up or torn down between a source station's router and a next hop router. The temporary transit path is set up within a subnetwork that includes the source station, the next hop router, and an intermediate router that is interconnected by a plurality of permanent transit paths to the source station and the next hop router. In one embodiment, a method for creating a temporary path for data packet transmission in the subnetwork is disclosed. Transmission of the data packets is initiated over the permanent transit paths that are coupled between the source station and the next hop router. A bit rate of the data packets from the source station to the next hop router is measured after initiating the transmission. Data packets transmission over the permanent transit paths is continued when the measured bit rate is below a first predetermined value. A temporary transit path between the source station and the next hop router is created when the measured bit rate is above the first predetermined value. The data packets are transmitted over the created temporary transit path when the measured bit rate is above the first predetermined value. In a preferred embodiment, the bit rate is measured again after creating the temporary transit path and transmitting the data packets over the created temporary transit path. The created temporary transit path is torn down when the bit rate is below the second predetermined value. Transmission of the data packets is sent over the permanent transit paths from the source station to the next hop routers once the temporary transit path is torn down.

公开(公告)号：US20040202177A1

公开(公告)日：2004-10-14

申请号：US09886870

申请日：2001-06-21

申请人： NEC Corporation

发明人： Hitoya Tachikawa

IPC分类号： H04L012/28 ,  H04L012/56

CPC分类号： H04L45/10 ,  H04L12/5601 ,  H04L2012/562 ,  H04L2012/5668 ,  H04L2012/5669

摘要： A NHRP/MPOA (Next Hop Resolution Protocol/Multi-Protocol Over ATM (Asynchronous Transfer Mode)) system for automatically collecting, by using NHRP Extensions, the IP addresses of MPOA servers via which a Resolution Request is sequentially transferred is disclosed. The system includes an input unit or data inputting means and an output unit implemented by a display or a printer. A route search commanding unit analyzes a command received from the input unit or produces an address from a received packet. A receipt unit receives a Resolution Request from another MPS server or another MPC client. A packet handling unit analyzes the content of a received packet and executes necessary processing. A transmission unit sends a Resolution Request to another MPS server or another MPC client. A memory stores a routing table on a computer (router), network interface information and information relating to a computer (router) on which the MPS is mounted. A route displaying method is also disclosed.

摘要翻译： 公开了一种通过使用NHRP Extensions自动收集顺序传送解析请求的MPOA服务器的IP地址的NHRP / MPOA（下一跳解决协议/ ATM上的多协议（异步传输模式））系统。 该系统包括输入单元或数据输入装置和由显示器或打印机实现的输出单元。 路径搜索命令单元分析从输入单元接收的命令或从接收的分组产生地址。 收据单元从另一个MPS服务器或另一个MPC客户端接收解决请求。 分组处理单元分析接收到的分组的内容并执行必要的处理。 传输单元向另一个MPS服务器或另一个MPC客户端发送解析请求。 存储器存储计算机（路由器）上的路由表，网络接口信息和与安装MPS的计算机（路由器）有关的信息。 还公开了路线显示方法。

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。