Sky-based network space route exchanging method

A network and routing technology, applied in the field of aerospace information, can solve the problems of the signaling system being difficult to adapt, the bandwidth utilization rate is not high, and it takes a long time, so as to improve the autonomous routing capability, reduce the node transmission delay, and improve the throughput. amount of effect

Inactive Publication Date: 2007-08-22
BEIHANG UNIV
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Problems solved by technology

However, this technology cannot be effectively compatible with the currently widely used IP-based Internet network, and there are: 1) it is difficult to support multicast; 2) for satellite networks with frequent topological changes, the complex signaling system of ATM is difficult to adapt, and the signaling overhead Huge; 3) The overhead of the cell header is too large, and the bandwidth utilization rate is not high, etc.
[0005] Now there is satellite IP technology, which can provide a seamless connection with the terrestrial Internet, and it is simple to implement and has a good application prospect. It will take a long time for the IP header, which will cause node transmission delay and low exchange rate

Method used

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  • Sky-based network space route exchanging method
  • Sky-based network space route exchanging method
  • Sky-based network space route exchanging method

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Embodiment Construction

[0019] As shown in FIG. 1 , it is a structural diagram of an on-board switch applying the space-based network on-board routing switching method of the present invention. The on-board switch is composed of multiple interface units on the periphery and the main control routing and switching unit in the center. Among them, each interface unit is responsible for data frame processing, user access and fast frame switching functions of the link layer, and the main control routing switching unit is responsible for network layer routing and multi-protocol label switching (Multi-protocol Label Switch, referred to as MPLS) signaling. command exchange and other functions. The spaceborne switch shown in Figure 1 includes: multiple user interface units, each user interface unit processes the uplink and downlink data of a user beam; multiple inter-satellite link interface units, each inter-satellite link interface unit processes multiple The input and output data of the inter-satellite lin...

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Abstract

A method for exchanging satellite-carried route of sky based network includes judging whether source user and destination user of data are in the same wave beam or not and carrying out data link layer exchange on data if it is or otherwise judging whether multi-protocol countermark is carried by data or not according to data packet formed frame sequence number data in connection head, carrying out multi-protocol countermark exchange on data if it is or otherwise carrying out IP route exchange on data.

Description

technical field [0001] The invention relates to the field of aerospace information, in particular to a space-based network onboard routing exchange method. Background technique [0002] The space-based network is a satellite network (space-based), which integrates space-ground information, and consists of various types of satellite systems in different orbits. According to the principle of the most effective and comprehensive utilization of space information resources, it is interconnected and organically composed of intelligence. system. The network integrates a variety of aerospace information systems, has independent information acquisition, storage, processing and distribution capabilities, and can be interconnected with land, sea, and air-based information systems to achieve multiple and three-dimensional sharing of information, which is an important aspect of future information systems. component. [0003] Switching technology is the basis for realizing network inter...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L29/06H04L12/46H04L12/28H04B7/185H04L45/50H04L45/74
Inventor 张军张涛卢咏
Owner BEIHANG UNIV
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