公开(公告)号：US08121121B2

公开(公告)日：2012-02-21

申请号：US12561412

申请日：2009-09-17

申请人： Jiguang Xiao ,  Hui Ni ,  Ying Chen ,  Jian Zhang

发明人： Jiguang Xiao ,  Hui Ni ,  Ying Chen ,  Jian Zhang

IPC分类号： H04L12/56 ,  H04J1/16

CPC分类号： H04L45/00 ,  H04L45/507

摘要： The present invention relates to a field of communication technology, and more particularly to a communication system, a label switched router, a network device, a method for handing over a route, and a method for notifying a state of advertising a label so as to improve an accuracy occasion for handing over a route. A liberal LSP between an upstream LSR and a downstream LSR is established; it is confirmed that establishing the liberal LSP is accomplished; a handover notification is sent to the upstream LSR; and the upstream LSR hands over the route according to the handover notification. By adopting such technical solution, the accuracy occasion for handing over the route is improved so as to avoid label forwarding interruption, and reduce the influences on the convergence time of handing over the route.

摘要翻译： 本发明涉及一种通信技术领域，更具体地涉及通信系统，标签交换路由器，网络设备，移交路由的方法，以及通知广告标签状态的方法，以便 提高移交路线的准确性。 建立上游LSR和下游LSR之间的自由LSP; 确定建立自由的LSP是完成的; 向上游LSR发送切换通知; 并且上游LSR根据切换通知切换路由。 通过采用这种技术方案，提高了交接路由的准确性，避免了标签转发中断，减少了对路由的收敛时间的影响。

公开(公告)号：US20100008373A1

公开(公告)日：2010-01-14

申请号：US12561412

申请日：2009-09-17

申请人： Jiguang Xiao ,  Hui Ni ,  Ying Chen ,  Jian Zhang

发明人： Jiguang Xiao ,  Hui Ni ,  Ying Chen ,  Jian Zhang

IPC分类号： H04L12/56

CPC分类号： H04L45/00 ,  H04L45/507

摘要： The present invention relates to a field of communication technology, and more particularly to a communication system, a label switched router, a network device, a method for handing over a route, and a method for notifying a state of advertising a label so as to improve an accuracy occasion for handing over a route. A liberal LSP between an upstream LSR and a downstream LSR is established; it is confirmed that establishing the liberal LSP is accomplished; a handover notification is sent to the upstream LSR; and the upstream LSR hands over the route according to the handover notification. By adopting such technical solution, the accuracy occasion for handing over the route is improved so as to avoid label forwarding interruption, and reduce the influences on the convergence time of handing over the route.

摘要翻译： 通信技术领域本发明涉及通信技术领域，更具体地涉及通信系统，标签交换路由器，网络设备，移交路由的方法以及通知广告标签的状态的方法，以便 提高移交路线的准确性。 建立上游LSR和下游LSR之间的自由LSP; 确定建立自由的LSP是完成的; 向上游LSR发送切换通知; 并且上游LSR根据切换通知切换路由。 通过采用这种技术方案，提高了交接路由的准确性，避免了标签转发中断，减少了对路由的收敛时间的影响。