公开(公告)号：US20080095047A1

公开(公告)日：2008-04-24

申请号：US11955888

申请日：2007-12-13

申请人： Darek SKALECKI ,  Gerard (Gary) SWINKELS ,  David ALLAN ,  Nigel BRAGG ,  Marc HOLNESS

发明人： Darek SKALECKI ,  Gerard (Gary) SWINKELS ,  David ALLAN ,  Nigel BRAGG ,  Marc HOLNESS

IPC分类号： H04L12/26

CPC分类号： H04L41/0668 ,  H04L45/22 ,  H04L45/28

摘要： A resilient virtual Ethernet ring has nodes interconnected by working and protection paths. If a span fails, the two nodes immediately on either side of the failure are cross-connected to fold the ring. Working-path traffic is cross-connected onto the protection path at the first of the two nodes and is then cross-connected back onto the working path at the second of the two nodes so that traffic always ingresses and egresses the ring from the working path. A traffic originating node, upon determining that transmitted packets are being looped back due to a fault on a primary path, is adapted to switch transmission of data packets from the primary path to a secondary path.

摘要翻译： 一个有弹性的虚拟以太网环具有通过工作和保护路径互连的节点。 如果跨度失效，则立即在故障两侧的两个节点交叉连接以折叠环。 工作路径流量交叉连接到两个节点第一个的保护路径上，然后在两个节点的第二个端口上交叉连接回工作路径，以便流量始终从工作路径中进出环 。 业务始发节点在确定由于主路径上的故障而被发送的分组环回时适于将数据分组从主路径传输到次路径。