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1. 发明授权

US07257086B2 Method and system for effectuating network routing over primary and backup channels 有权
标题翻译：用于实现主和备用通道网络路由的方法和系统
公开(公告)号：US07257086B2
公开(公告)日：2007-08-14
申请号：US10228557
申请日：2002-08-27
申请人： Robert Allen Brown , Carl Andrew Brannen , Randy William Lee
发明人： Robert Allen Brown , Carl Andrew Brannen , Randy William Lee
IPC分类号： H04L12/56
CPC分类号： H04L45/00 , H04L29/06 , H04L45/28 , H04L69/14 , H04L69/40
摘要： A method and system for effectuating network routing over primary and backup channels. In one embodiment, a primary link is enabled to transfer customer traffic between network nodes, while a transmission quality of the link is monitored. Upon determining the primary link has entered a marginal state, the primary link is disabled such that the network immediately determines it is unavailable. Test traffic is sent over the primary link while monitoring the transmission quality to determine if the link returns to a non-marginal state, and in response thereto the primary link is re-enabled such that the network immediately determines it is available for routing customer traffic again. In one embodiment, rerouting the customer traffic is effectuated by opening and closing the primary link, such that it appears to the network to be disconnected and reconnected. In one embodiment, the primary link comprises a free space optical (FSO) link.
摘要翻译：一种用于实现主和备用通道网络路由的方法和系统。在一个实施例中，主链路能够在网络节点之间传送客户业务，同时监视链路的传输质量。当确定主链路已经进入边缘状态时，主链路被禁用，使得网络立即确定它不可用。测试流量通过主链路发送，同时监视传输质量以确定链路是否返回到非边缘状态，并且响应于此，主链路被重新启用，使得网络立即确定它可用于路由客户流量再次。在一个实施例中，重新路由客户业务是通过打开和关闭主链路来实现的，使得网络看起来被断开并重新连接。在一个实施例中，主链路包括自由空间光（FSO）链路。

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