A space-ground integrated network virtualization method based on protocol non-perception forwarding

Abstract

The invention discloses a space-ground integrated network virtualization method based on protocol non-perception forwarding. The method is oriented to a space-ground integrated network, And the underlying physical network is managed through the virtualization layer based on the protocol non-perception forwarding technology, wherein the acquisition of the bottom layer satellite network topology isto divide the satellite constellation operation period into a series of short time slices by analyzing the operation rule of the satellite constellation and keep the topology of the satellite in eachtime slice unchanged, and the bottom layer routing method adopts a segmented routing method. The invention discloses a network virtualization method. According to the method, a protocol non-perceptionforwarding technology, a virtual topology technology and a segmented routing technology are applied to space-ground integrated network virtualization, on the basis that the programmability of the network is improved, the calculation time of a mapping scheme, the number of flow table items and the overhead of a data packet header are greatly reduced, the utilization rate of equipment is effectively improved, and the requirement for space-ground integrated network virtualization is met.

Description

technical field [0001] The present invention relates to the field of space-ground integrated network technology, and more specifically, relates to a space-ground integrated network virtualization method based on protocol-free forwarding, which is a method for continuously emerging new protocols, difficult hardware device replacement, and limited resources. , The network virtualization method of space-ground integration with frequent network topology changes and high programmability requirements. Background technique [0002] At present, the ground network is affected by terrain and other factors, and its coverage has certain limitations. In order to better realize the interconnection and intercommunication of different regional networks, the combination of ground network and space network to form a space-ground integrated network is the current and future development trend of the network. . Although the space-ground integrated network based on software-defined networking (S...

AI Technical Summary

Problems solved by technology

Although the space-ground integrated network based on software-defined network (SDN) realizes the separation of control plane and data plane, it does not effectively improve the utilization rate of network equipment.

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