Method and device for realizing dual node interconnection protection in packet transport network
A technology of packet transmission network and implementation method, which is applied in the field of dual-node interconnection protection, can solve problems such as wasting bandwidth, and achieve the effect of saving bandwidth and reducing difficulty
Active Publication Date: 2010-06-16
ZTE CORP
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[0011] The present invention provides a method and device for realizing dual-node interconnection protection in a packet transmission network, which is used to overcome the problem of wasting bandwidth during dual-node interconnection service transmission in the prior art question
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[0037] An embodiment of the present invention provides a method for implementing dual-node interconnection protection in a packet transmission network. Reverse closed-loop protection tunnels are respectively configured in the two rings of dual-node interconnection, and dual-node interconnection tunnels are configured between the interconnected nodes. The reverse The closed-loop protection tunnel is a shared protection tunnel between the dual-node interconnection tunnel and the service tunnel;
[0038] When the ring-passing service is transmitted between the two rings, and the service link between the originating node and the receiving end node fails, the data enters the service tunnel of the other ring through the dual-node interconnection tunnel and the reverse closed-loop protection tunnel or the reverse Transmit to the closed-loop protection tunnel.
[0039] The specific embodiment of the present invention will be described in detail below in conjunction with the accompanyi...
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The invention discloses a method and a device for realizing dual node interconnection protection in a packet transport network. The method comprises the steps of: configuring a reverse closed loop protection tunnel in two loops with dual node interconnection respectively, and configuring a dual node interconnection tunnel between interconnection nodes, wherein the reverse closed loop protection tunnel is a shared protection tunnel of the dual node interconnection tunnel and a service tunnel; and making data enter the service tunnel or the reverse closed loop protection tunnel of another loop for transmission through the dual node interconnection tunnel and the reverse closed loop protection tunnel when cross-loop service is transmitted between the two loops and a service link between a sending end node and a receiving end node has link failure. The method and the device can save the bandwidth resource of the dual node interconnection protection.
Description
technical field [0001] The invention relates to the field of network data transmission, in particular to a method and device for realizing dual-node interconnection protection in a packet transmission network. Background technique [0002] Due to the limitation of the scale of a single ring network, in order to improve the coverage of the network, topological forms such as ring crossing ring and dual node interconnection are usually used for network expansion. PTN (packet switching network) equipment should support the network of intra-ring business and inter-ring business The protection function has the function of resisting single-point failure or multi-point failure. [0003] Such as figure 1 As shown, the dual-node interconnection is a structure in which each ring provides two node interconnections between two rings, and the structure included may be: [0004] Topology 1. Provide protection for traffic crossing from one ring to another by distributing two interconnecti...
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IPC IPC(8): H04L12/42H04L12/46H04L12/56H04L12/24
CPCH04L12/437H04L45/28H04L45/22
Inventor 汤跃娟周晓慧
Owner ZTE CORP