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METHOD, SYSTEM AND NETWORK ELEMENT FOR EMPLOYING MULTI-PROTOCOL LABEL SWITCHING (MPLS) TO OPTIMIZE BANDWIDTH IN A RING TOPOLOGY NETWORK
METHOD, SYSTEM AND NETWORK ELEMENT FOR EMPLOYING MULTI-PROTOCOL LABEL SWITCHING (MPLS) TO OPTIMIZE BANDWIDTH IN A RING TOPOLOGY NETWORK
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机译:在环形拓扑网络中采用多协议标签交换(MPLS)来优化带宽的方法,系统和网络元素
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摘要
A method performed on a network element employing Multi-protocol Label Switching (MPLS) to optimize bandwidth in a ring topology network including a back- up Label Switch Path (LSP) for a protected LSP by re-routing traffic onto the back-up LSP to avoid shared links between the protected LSP and back-up LSP, including receiving a first labeled packet from another label switch router (LSR) in the back-up LSP, the first labeled packet indicating that a protection switch of data is to be performed from the protected LSP to the back-up LSP, determining whether a shared link in the ring topology network exists between the protected LSP and the back-up LSP, rerouting traffic for the protected LSP onto an optimized back-up LSP to remove the shared link, receiving a second labeled packet indicating that a protection switch of data is to be performed, and restoring routing of the traffic onto the protected LSP in response to receiving the second labeled packet.
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