System and method for realizing double-node interconnected pseudo-wire

Abstract

The invention discloses a system and a method for realizing a double-node interconnected pseudo-wire, and relates to the technical field of application of wireless backhaul networks. The system comprises two bridge nodes, at least one access side node and at least one core side node, wherein the two bridge nodes are connected with each access side node and each core side node respectively; the two bridge nodes are taken as a master node and a standby node; both the master node and the standby node are provided with access side interfaces, double-node interconnected pseudo-wire side interfaces and core side interfaces; any two interfaces on the same bridge node are communicated with each other; a double-node interconnected pseudo-wire side virtual circuit is arranged between the master node and the standby node; access side virtual circuits are arranged between the access side node and the master node as well as between the access side node and the standby node respectively; the double-node interconnected pseudo-wire side virtual circuit and the access side virtual circuits are bound in one double-node interconnected pseudo-wire group; and automatic protection changeover signaling channels are overlapped on the double-node interconnected pseudo-wire side virtual circuit and the access side virtual circuits respectively.

Description

technical field [0001] The invention relates to the technical field of wireless backhaul network applications, in particular to a system and method for realizing double-node interconnected pseudowires. Background technique [0002] As LTE (3GPP Long Term Evolution, 3GPP technology long-term evolution technology) is gradually being widely used in China, higher requirements are put forward for the wireless backhaul requirements of base station data services. At present, for its application in the wireless backhaul network, the common business model is to deploy L2 network (Layer 2 network) at the access layer, deploy L3 network (Layer 3 network) at the core layer, and complete L2 network to L3 network through the bridge interface at the aggregation node. Network business transformation. [0003] The L2 network is a switching network, which implements point-to-point communication channels for service forwarding through end-to-end pseudo-wire technology. Path, label switching ...

AI Technical Summary

Problems solved by technology

However, this method has the following defects: when the PW redundancy protection is triggered, the link failure of the access layer cannot be sensed in the downlink direction. At this time, if the connection is still made from the active node, the service will be interrupted; and the PW redundancy protection is adopted. The superimposed design with LSP1:1 protection makes the configuration process of the live network more complicated and wastes label resources seriously

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