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    Dynamic data tunnelling
    1.
    发明授权
    Dynamic data tunnelling 失效
    动态数据隧道

    公开(公告)号：US06778541B2

    公开(公告)日：2004-08-17

    申请号：US09727644

    申请日：2000-12-01

    申请人： Allen Houston ,  Paul Fee ,  Christopher Murton ,  Ewart Tempest ,  Philip Christian

    发明人： Allen Houston ,  Paul Fee ,  Christopher Murton ,  Ewart Tempest ,  Philip Christian

    IPC分类号： H04L1256

    CPC分类号： H04L12/4633 ,  H04L45/02 ,  H04L45/026 ,  H04L45/04

    摘要： The present invention relates to data tunnelling and in one embodiment to the tunnelling of IP (Internet Protocol) data across an OSI (Open Systems Interconnect) network. In the preferred embodiment, network elements include both an OSI stack and an IP stack, and a respective directory of OSI addresses and corresponding IP subnets. Each network element generates a routing data packet, conveniently a Link State Packet (LSP), which includes the OSI address and IP subnet(s) associated with that network element. The LSPs are distributed across the network in normal manner. Upon receipt of an LSP from another network element, each network element updates its respective directory in respect of said other network element. Thus, each directory is automatically updated to reflect changes in the network, particularly in respect of IP subnets. This arrangement significantly reduces the need for manual tunnel configuration in the network. In an alternative embodiment, the invention provides dynamic data tunnelling of OSI data over an IP network.

    摘要翻译： 本发明涉及数据隧道，在一个实施例中涉及跨越OSI（开放系统互连）网络的IP（因特网协议）数据的隧道传输。 在优选实施例中，网络元件包括OSI堆栈和IP堆栈以及OSI地址和对应的IP子网的相应目录。 每个网元产生路由数据包，方便地包括链路状态分组（LSP），其包括与该网络元件相关联的OSI地址和IP子网。 LSP以正常方式分布在网络中。 在从另一网络元件接收到LSP时，每个网络元件相对于所述另一网络元件更新其相应的目录。 因此，每个目录被自动更新以反映网络中的变化，特别是在IP子网方面。 这种布置显着地减少了在网络中手动隧道配置的需要。 在替代实施例中，本发明通过IP网络提供OSI数据的动态数据隧道传输。

    Method and apparatus for redialing a connection on a communication network
    3.
    发明授权
    Method and apparatus for redialing a connection on a communication network 失效
    用于在通信网络上重新连接的方法和装置

    公开(公告)号：US07590051B1

    公开(公告)日：2009-09-15

    申请号：US10946983

    申请日：2004-09-22

    申请人： Darek Skalecki ,  Areef Reza ,  Ewart Tempest

    发明人： Darek Skalecki ,  Areef Reza ,  Ewart Tempest

    IPC分类号： G01R31/08

    CPC分类号： H04M3/12 ,  H04L41/0668 ,  H04L43/0811

    摘要： Resources used by a connection are released when a connection is terminated, for example due to a failure on the network. When the connection is to be redialed, an indication of the released resources is collected and provided to the network element that will perform a redial operation to determine the new path for the connection. This allows the network element to determine the new path using up-to-date information, while not allowing other nodes on the network to know about the recently released resources, so that the head-end node has an initial opportunity to use the recently released resources for the redialed connection. Subsequently any unused resources will be advertised on the network for use by other nodes. The head-end network element may be notified of the resources released from termination of the previous connection by causing a termination message to propagate from the tail-end node to the head-end node and collect feedback along the terminating connection path.

    摘要翻译： 连接使用的资源在连接终止时被释放，例如由于网络故障。 当要重连连接时，收集释放的资源的指示并提供给将执行重拨操作的网络元件，以确定连接的新路径。 这允许网络元素使用最新信息来确定新路径，而不允许网络上的其他节点知道最近发布的资源，以便头端节点具有使用最近发布的初始机会 重拨连接资源。 随后，任何未使用的资源将在网络上通告以供其他节点使用。 可以通过使终止消息从尾端节点传播到前端节点并且沿着终止连接路径收集反馈来向前端网元通知从先前连接的终止释放的资源。