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

A network virtualization, protocol-agnostic technology, applied in the field of integrated space and earth network, can solve the problem of not effectively improving the utilization of network equipment, and achieve the effects of improving programmability, improving utilization, and reducing computing time

Active Publication Date: 2019-06-11
SUN YAT SEN UNIV +1
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  • Claims
  • Application Information

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Problems solved by technology

Although the space-ground integrated network based on software-defined network (SDN) realizes the separation

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

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Embodiment Construction

[0040] In order to make the object, technical solution and advantages of the present invention more clear and definite, the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0041] Implementation example

[0042] This embodiment designs a network virtualization method for space-ground integration based on protocol-aware forwarding. The processing flow of the network virtualization method in this embodiment includes the following steps, wherein this embodiment uses the Iridium constellation as the satellite constellation, image 3 Is the Iridium constellation and satellite map:

[0043] S1, the virtualization layer and the underlying switch are connected to each other by sending messages;

[0044] S2. The tenant initiates a virtual network establishment re...

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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...

Claims

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Application Information

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IPC IPC(8): H04L12/723H04L12/24H04L45/50
Inventor 陈翔李忠发刘凯
Owner SUN YAT SEN UNIV
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