Bypass Traffic Partial Sharing Method and Bypass Network Structure

Abstract

The invention provides a method, a device and a bypass networking structure for locally sharing bypass flow. The method comprises the following steps that: an optical cross-connect device in the bypass networking structure detects each accessible path which can access to a router; after an optical signal is received from a color light port router, the optical signal is forwarded to a corresponding target router according to a preset original path; the optical cross-connect device counts optical signal flow on the original path, and when the value of the optical signal flow on the original path is more than a preset threshold, the optical cross-connect device selects one standby path from accessible paths of the target router to forward the optical signal. According to the method, the actual optical signal flow condition on the original path is counted, and the local sharing trend of the bypass flow is dynamically adjusted based on the detected standby path, and thus, the increase of workload on a network device is avoided, and conditions such as packet loss are avoided.

Description

technical field [0001] The invention relates to a bypass flow partial apportionment method, equipment and a bypass network structure, and belongs to the technical field of optical communication. Background technique [0002] In the carrier network, through the analysis of the backbone network flow, it is found that more than 50% of the service flow passing through the core router belongs to the "transit" forwarding flow. These forwarding traffic greatly increase the burden on the core router. For this reason, the ByPass networking technology is adopted in the existing technology, and through the coordination mechanism of the IP layer and the optical layer, these "transit" forwarding traffic can be effectively bypassed through the optical transmission pipeline, so as to reduce the load on the core router. Deal with stress. [0003] exist figure 1 In the example shown, the existing bypass networking structure includes four routers P1-P4 in the IP layer, and three OTN (Optic...

AI Technical Summary

Problems solved by technology

[0004] The problem with the existing technology is that in the existing bypass network structure, the transmission paths for various services are all predetermined and confirmed, and will not change dynamically

Therefore, when there is too much traffic on the preset original path, it will increase the workload of network devices, resulting in packet loss and other situations

For example, service 1 carried on wavelength 1 is always forwarded by OTN4 to P4. If there is too much traffic on the path between OTN4 and P4, the workload on P4 will be increased, resulting in packet loss, etc.

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