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Method for realizing NNI (Network Node Interface) SVC (Switched Virtual Circuit) switching on satellite ATM (Air Traffic Management)

An implementation method and switch technology, applied in the field of communication, can solve the problems of no public information, etc., and achieve the effect of easy implementation and simple processing process

Active Publication Date: 2013-10-16
XIAN INSTITUE OF SPACE RADIO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, domestic and foreign satellite-borne ATM switches, only the Japanese WINDS satellite adopts the PVC switching method, but due to the protection of technical secrets, there is no public information available for inquiry
There is no public literature on the establishment and dismantling of NNI SVC at home and abroad

Method used

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  • Method for realizing NNI (Network Node Interface) SVC (Switched Virtual Circuit) switching on satellite ATM (Air Traffic Management)
  • Method for realizing NNI (Network Node Interface) SVC (Switched Virtual Circuit) switching on satellite ATM (Air Traffic Management)
  • Method for realizing NNI (Network Node Interface) SVC (Switched Virtual Circuit) switching on satellite ATM (Air Traffic Management)

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Embodiment Construction

[0048] ATM switching system on star switch such as figure 1 As shown, it consists of ground ATM terminal, user access equipment, ground network management center and on-star ATM switch. Among them, the ATM user access equipment is the equipment that integrates the existing communication services into the ATM network; the ground network management center completes user network authentication, ATM address allocation, SVC call establishment / maintenance / release and other functions.

[0049] Such as figure 2 As shown, the ground ATM terminal (including the ground ATM terminal in the user access device) includes the calling party ATM terminal and the called party ATM terminal, and the calling party ATM terminal and the called party ATM terminal include the application layer, CC layer, Q.2931_s layer, ATM layer and physical layer, the ATM switch on the star includes the UNI interface for data transmission with the ATM terminal on the ground and the NNI interface for data transmissi...

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Abstract

The invention relates to a method for realizing NNI (Network Node Interface) SVC (Switched Virtual Circuit) switching on a satellite switcher ATM (Air Traffic Management), which comprises the following steps: constructing a CC layer, a Q. 2931s layer and a B-ISUP_s; and protocol treatment is completed on a satellite by adopting a satellite switcher ATM NNI signaling protocol, wherein a protocol stack does not contain an AAL5 layer, and the treatment process is relatively simple, and is easy to realize. In the invention, an SVC switching mode, i.e. a dynamic switching mode, of a satellite network can be realized among multi satellites through an ATM NNI switching technology, so that the resource distribution according to needs can be realized, the resource distribution is flexible, and themaximum advantage of the ATM switching technology-ensuring Qos can be embodied. The satellite switcher ATM NNI signaling protocol provided by the invention can realize the SVC switching mode among the satellites, so that a switching system of the satellite switcher ATM can furthest embody the maximum advantage of the ATM switching technology.

Description

technical field [0001] The invention relates to a method for implementing ATM NNI SVC switching of an on-star switch, belonging to the technical field of communication. Background technique [0002] At present, the on-board processing and forwarding technology of military and civilian broadband communication satellites under research all use ATM switching technology. ATM switching technology is divided into interactive objects: UNI (User Network Interface) user network interface and NNI (Network Network Interface) network network interface. UNI means that the input or output port of the ATM switch is connected to the end user, and the other end is connected to another ATM switch; NNI means that the input and output ports of the two ATM switches are connected to the ATM switch. ATM switching technology is divided into SVC (Switched Virtual Circuit, switched virtual connection) switching method and PVC (Permanent Virtual Circuit, permanent virtual connection) switching method...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/70H04L47/43
Inventor 黎军周诠张怡呼延烺李静玲李敏奇王洋沈俊
Owner XIAN INSTITUE OF SPACE RADIO TECH
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