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    • 1. 发明申请
    • MIDSPAN RE-OPTIMIZATION OF TRAFFIC ENGINEERED LABEL SWITCHED PATHS
    • MIDSPAN重新优化交通工程标签交换机
    • US20140328163A1
    • 2014-11-06
    • US13887599
    • 2013-05-06
    • VERIZON PATENT AND LICENSING INC.
    • Christopher N. Del RegnoMatthew W. Turlington
    • H04L12/703
    • H04L45/28
    • A technique for mid-span re-optimization of traffic engineered label switched paths within a network that uses a label switching protocol (e.g., MPLS) enables a network operator to move traffic to quickly prepare for link or nodal maintenance. The technique establishes, at an intermediate router, a first label switch path (LSP) along a path between an ingress router and an egress router. The intermediate router forwards traffic via the first LSP and establishes a bypass tunnel to protect against link failure between the intermediate router and a next intermediate router on the first LSP. The intermediate router continues forwarding traffic on the first LSP, instead of the bypass tunnel, based on the receipt of a link failure simulation instruction at the intermediate router from a network administration node. The intermediate router discontinues forwarding the traffic via the first LSP based on the receipt of second signaling.
    • 在使用标签交换协议(例如,MPLS)的网络内的交通工程标签交换路径的中跨重新优化的技术使得网络运营商能够移动流量以快速准备链路或节点维护。 该技术在中间路由器处建立沿着入口路由器和出口路由器之间的路径的第一标签交换路径(LSP)。 中间路由器通过第一个LSP转发流量,并建立旁路隧道,以防止中间路由器与第一个LSP上的下一个中间路由器之间的链路故障。 基于在中间路由器从网络管理节点接收到链路故障模拟指令,中间路由器继续在第一LSP上转发流量而不是旁路隧道。 中间路由器基于接收到第二信令而中断通过第一LSP转发业务。
    • 6. 发明授权
    • Midspan re-optimization of traffic engineered label switched paths
    • 交通工程标签交换路径的中跨重新优化
    • US09473392B2
    • 2016-10-18
    • US13887599
    • 2013-05-06
    • Verizon Patent and Licensing Inc.
    • Christopher N. Del RegnoMatthew W. Turlington
    • H04L12/703
    • H04L45/28
    • A technique for mid-span re-optimization of traffic engineered label switched paths within a network that uses a label switching protocol (e.g., MPLS) enables a network operator to move traffic to quickly prepare for link or nodal maintenance. The technique establishes, at an intermediate router, a first label switch path (LSP) along a path between an ingress router and an egress router. The intermediate router forwards traffic via the first LSP and establishes a bypass tunnel to protect against link failure between the intermediate router and a next intermediate router on the first LSP. The intermediate router continues forwarding traffic on the first LSP, instead of the bypass tunnel, based on the receipt of a link failure simulation instruction at the intermediate router from a network administration node. The intermediate router discontinues forwarding the traffic via the first LSP based on the receipt of second signaling.
    • 在使用标签交换协议(例如,MPLS)的网络内的交通工程标签交换路径的中跨重新优化的技术使得网络运营商能够移动流量以快速准备链路或节点维护。 该技术在中间路由器处建立沿着入口路由器和出口路由器之间的路径的第一标签交换路径(LSP)。 中间路由器通过第一个LSP转发流量,并建立旁路隧道,以防止中间路由器与第一个LSP上的下一个中间路由器之间的链路故障。 基于在中间路由器从网络管理节点接收到链路故障模拟指令,中间路由器继续在第一LSP上转发流量而不是旁路隧道。 中间路由器基于接收到第二信令而中断通过第一LSP转发业务。