公开(公告)号：US20040151130A1

公开(公告)日：2004-08-05

申请号：US10747077

申请日：2003-12-30

Applicant: NORTEL NETWORKS LIMITED

Inventor： Maged E. Beshai ,  Richard Vickers

IPC: H04L012/28

CPC classification number: H04L45/02 ,  H04L12/28 ,  H04L43/00 ,  H04L45/025 ,  H04L45/22 ,  H04L45/28 ,  H04L45/42 ,  H04L45/54

Abstract: In a communication network comprising nodes and links between the nodes, a controller node disseminates link state information. A nodal routing table exists at each node comprising routes between pairs of nodes. The nodal routing table is either populated by the given node based on network information received from the controlling node or populated at the controlling node and received by the given node. Each node receives heartbeat signals from its neighbouring nodes. An unexpected delay between heartbeat signals may be perceived as a failure of a link. The perceived failure of that link is reported by the perceiving node to the controlling node. Upon receiving link failure information from a node, the controlling node may determine a subset of nodes in the network influenced by the link failure and indicate the link failure to the determined subset of influenced nodes.

Abstract translation: 在包括节点之间的节点和链路的通信网络中，控制器节点传播链路状态信息。 节点路由表存在于包括节点对之间的路由的每个节点处。 节点路由表由给定节点根据从控制节点接收的网络信息填充，或由控制节点填充并由给定节点接收。 每个节点从其相邻节点接收心跳信号。 心跳信号之间意外的延迟可能被认为是链路故障。 感知节点向控制节点报告该链路感知到的故障。 在从节点接收到链路故障信息时，控制节点可以确定受链路故障影响的网络中的节点的子集，并且指示所确定的受影响节点的子集的链路故障。