公开(公告)号：US20080285439A1

公开(公告)日：2008-11-20

申请号：US11568663

申请日：2004-05-07

Applicant: Benoit Lemoine ,  Morgane Le Foll ,  Geraldine Calvignac

Inventor： Benoit Lemoine ,  Morgane Le Foll ,  Geraldine Calvignac

IPC: G06F11/07

CPC classification number: H04J14/0227 ,  H04J3/14 ,  H04J14/0245 ,  H04J14/0249 ,  H04J14/0283 ,  H04J14/0286 ,  H04J2203/006

Abstract: The invention relates to a system for protecting a communications network comprising a transport network (3) and end-channel equipment (1) such as routers each connected to said transport network (3) by connecting sections wherein said protective system is provided with first and second protective systems. Said invention is characterised in that for each communications channel between two pieces of said end-channel equipment (1), the first protective system is activated when a failure is detected in said transport network (3) which emits a direct channel alarm message (AU-AIS) to equipment on the downstream end thereof, said second protective system is activated, after detection by end equipment of said channel (1) of a failure in the connection section connecting it to said transport network or when equipment (1) of the downstream end of said channel receives the direct or indirect alarm message (AU-AIS, AU-RDI) emitted by the transport network and the second protective system is activated, after reception of the direct alarm message (AU-AIS), with a delay longer than after detection of the failure on a second connection section between said transport network (3) and end-channel equipment (1). A protection method carried out by said protective system is also disclosed.

Abstract translation: 本发明涉及一种用于保护通信网络的系统，其包括传输网络（3）和终端信道设备（1），诸如通过连接部分连接到所述传输网络（3）的终端信道设备（1），其中所述保护系统被提供有第一和 第二保护系统。 所述发明的特征在于，对于两条所述终端设备（1）之间的每个通信信道，当在所述传输网络（3）中检测到故障时，第一保护系统被激活，该传输网络发出直接信道报警消息（AU -AIS）到其下游端的设备，所述第二保护系统在被所述通道（1）的终端设备检测到连接到所述传输网络的连接部分中的故障或者所述第二保护系统的设备（1）被激活时， 所述通道的下游端接收直接或间接的报警消息（AU-AIS，AU-RDI），并且在接收到直接报警消息（AU-AIS）之后，延迟 比在所述传输网络（3）和终端信道设备（1）之间的第二连接部分检测到故障之后长。 还公开了由所述保护系统执行的保护方法。

公开(公告)号：US20070011284A1

公开(公告)日：2007-01-11

申请号：US10505484

申请日：2003-02-17

Applicant: Jean-Louis Le Roux ,  Geraldine Calvignac ,  Renaud Moignard

Inventor： Jean-Louis Le Roux ,  Geraldine Calvignac ,  Renaud Moignard

IPC: G06F15/173

CPC classification number: H04L47/746 ,  H04L45/28 ,  H04L47/15 ,  H04L47/70 ,  H04L47/724 ,  H04L47/728 ,  H04L47/825

Abstract: The invention concerns a method of protecting a label switching path in an MPLS network comprising a plurality of nodes connected by IP links, the said path commencing with an ingress node and ending in an egress node of the said network, passing through a given series of nodes and links in the said network, referred to as elements of the said path. When the said ingress node requires the protection of an element of the path, in a first phase a node on the said path, referred to as the PLR point, upstream of the said element to be protected, determines a back-up path, referred to as the bypass tunnel, joining the path upstream of the said element to be protected at a node, referred to as the PM point, and, in a second phase, network resources are reserved on each of the links of the bypass tunnel in order to back up the said path in the event of failure of the said element.

Abstract translation: 本发明涉及一种保护MPLS网络中的标签交换路径的方法，包括通过IP链路连接的多个节点，所述路由从入口节点开始并且终止于所述网络的出口节点，通过给定的一系列 所述网络中的节点和链路，被称为所述路径的元素。 当所述入口节点需要保护路径的元素时，在第一阶段中，所述路径上被称为PLR点的节点在所述要保护的元件的上游，确定备用路径 作为旁路隧道，将被称为PM点的节点加入要被保护的元件的上游路径，并且在第二阶段中，按顺序在旁路隧道的每个链路上保留网络资源 在所述元件发生故障的情况下备份所述路径。

公开(公告)号：US20090040943A1

公开(公告)日：2009-02-12

申请号：US11658771

申请日：2005-06-17

Applicant: Jean-Louis Le Roux ,  Geraldine Calvignac

Inventor： Jean-Louis Le Roux ,  Geraldine Calvignac

IPC: H04L12/28

CPC classification number: H04L45/00 ,  H04L45/123 ,  H04L45/124

Abstract: A method of controlling routing in a packet network supported by a transport network allowing the dynamic creation/suppression of links for transporting packets of said packet network, said method including a routing step, a step of informing other routers of said network of the metric assigned to each link of the packet network, and a step of creating/destroying a link. The link may have three states: a non-connected state if said two routers cannot be directly connected, a virtual connection state wherein a virtual metric is assigned to said link between said head end router and said tail end router of the same communication, and a real connection state wherein a real metric is normally assigned to said link.

Abstract translation: 一种控制由传输网络支持的分组网络中的路由的方法，允许动态创建/抑制用于传送所述分组网络的分组的链路，所述方法包括路由步骤，向所述网络的其他路由器通知所分配的度量的步骤 到分组网络的每个链路，以及创建/销毁链路的步骤。 所述链路可以具有三种状态：如果所述两个路由器不能直接连接，则是非连接状态，其中将虚拟度量分配给所述头端路由器和所述相同通信的所述尾端路由器之间的所述链路的虚拟连接状态，以及 真正的连接状态，其中真实度量通常被分配给所述链路。

公开(公告)号：US20050188100A1

公开(公告)日：2005-08-25

申请号：US10503761

申请日：2003-02-20

Applicant: Jean-Louis Le Roux ,  Geraldine Calvignac ,  Renaud Moignard

Inventor： Jean-Louis Le Roux ,  Geraldine Calvignac ,  Renaud Moignard

IPC: H04L12/54 ,  H04L12/701 ,  H04L12/703 ,  H04L12/707 ,  H04L12/723 ,  H04L12/801 ,  H04L12/911 ,  H04L12/913 ,  H04L29/14 ,  G06F15/173

CPC classification number: H04L69/40 ,  H04L45/00 ,  H04L45/22 ,  H04L45/28 ,  H04L45/502 ,  H04L47/15 ,  H04L47/70 ,  H04L47/724 ,  H04L47/728 ,  H04L47/746 ,  H04L47/781 ,  H04L47/825

Abstract: Label switching paths in an MPLS network having plural nodes connected by IP links, each path passing through a series of network nodes and links called “elements of the path,” are protected. An element of a first path is protected by a bypass path starting from a node of the first path upstream and ending in a node of the first path downstream of the element to be protected. A certain number of resources of the network are reserved for the bypass path. An element of a second path is protected by a bypass path of the second path starting from a node of the second path upstream of the second element and ending in a node of the second path downstream of the second element. The bypass path of the second path includes at least one part of the resources reserved for the first bypass path.

Abstract translation: 具有通过IP链路连接的多个节点的MPLS网络中的标签交换路径被保护，每个路径通过一系列网络节点和被称为“路径的元素”的链接。 第一路径的元素由旁路路径保护，旁路路径从第一路径的上游节点开始，并以待保护的元素下游的第一路径的节点结束。 为旁路路径保留一定数量的网络资源。 第二路径的元素由第二路径的旁路路径从第二路径的上游的第二路径的节点开始并在第二路径下游的第二路径的节点结束。 第二路径的旁路路径包括为第一旁路路径保留的资源的至少一部分。