CN201418083Y

CN201418083Y - ADSL internet acceleration system based on overlay network

Info

Publication number: CN201418083Y
Application number: CN2009200728761U
Authority: CN
Inventors: 袁佳宁
Original assignee: LANXIN NETWORK CO Ltd
Current assignee: Lanxin Network Co., Ltd.; Shanghai chi chi Network Technology Co., Ltd.
Priority date: 2009-05-25
Filing date: 2009-05-25
Publication date: 2010-03-03
Anticipated expiration: 2019-05-25

Abstract

The utility model provides an ADSL internet acceleration system based on the overlay network, which comprises a plurality of access servers, an internet server, an ADSL Modem, a user computer and a user terminal, wherein the user terminal is in VPN connection with the access servers, and comprises two standard interfaces, one of the two standard interfaces is connected with the ADSL Modem, and theother interface is connected with the user computer. The utility model can greatly improve the internet access speed for the user.

Description

ADSL online accelerating system based on overlay network

Technical field

The utility model relates to areas of information technology, specifically a kind of broadband based on overlay network (ADSL) accelerating system of surfing the Net.

Background technology

Because of the significantly change of China's telecom industry general layout, China Telecom breaks up the family in north and south when having brought service competition, has also brought the north and south of telecommunications industry service to break up the family, and the very difficulty of exchanging visits between the two is congested very serious.Have the Website server of a lot of companies to be placed on telecommunications room at present, in southern access to netwoks speed very fast and stable, but visit from northern Netcom but very slow, sometimes even situation about can't visit can occur.

China is higher about the complaint amount of the Internet internetwork communication quality, it is believed that the breath Estate Division discloses, because the customer complaint that the bandwidth bottleneck between China Telecom and the China Netcom causes has accounted for 90%.Domesticly cause the situation that the website can't be visited, the post office page lands obstacle very general at present because interconnect problem, therefore cause directly and commercial indirectly loss, be not less than the GDP in a medium-sized city.

Summary of the invention

The purpose of this utility model is to provide a kind of accelerating system that improves internet access speed for the user who uses the ADSL online.

The purpose of this utility model is achieved in that

A kind of ADSL online accelerating system based on overlay network, this system comprises: several access servers, the Internet application server, ADSL Modem, subscriber computer and user terminal, by the Internet continuous formation overlay network, the Internet application server is connected with overlay network by the Internet between described several access servers; User terminal is set up the VPN(Virtual Private Network) passage by the Internet and several access servers; Described user terminal comprises two standard interfaces, and one of them interface links to each other with ADSL Modem, and another interface subscriber computer links to each other; Overlay network is linked to each other by unicast mechanisms between the node on the internet in twos by several access servers.

The utility model has adopted following technology:

Overlay network (Overlay Network also claims nerve of a covering, overlay network) technology

Overlay network is one and is positioned on one or more already present network independently virtual network, promptly by unicast mechanisms between the node main frame is being linked to each other in twos on the basis of bottom-layer network, forming virtual a, network independently, just looks like the new network of one deck that superposeed on original network.Can think that Internet is exactly a kind of overlay network,, increase the Internet protocol head for all bags because Internet is based upon on all kinds of local area network (LAN)s (as Ethernet), in order to connecting the main frame in each local area network (LAN), the new network of the one deck that forms.

Virtual private network technology (VPN, Virtual Private Network) technology

VPN utilizes the Internet or the infrastructure of other the Internet to create the tunnel for the user, utilizes technology such as encryption, authentication to guarantee the fail safe of VPN network, thereby safety and the function guarantee the same with dedicated network can be provided.

Access server in the utility model can be positioned at the optional position of the Internet, in order to guarantee the quality of circuit, generally access server is located at the key machine room of telecommunications or Netcom, perhaps telecommunications Netcom double wire machine room.Each access server is all surveyed the quality in the Internet path between it and other access servers, sets up the path quality table that comprises parameters such as packet loss, time delay and throughput by testing result.The user is during from the inserting more arbitrarily of overlay network, this access server can be according to the different purpose application server that inserts the user, from the good path quality table of previous foundation, select suitable path, user's data stream just can be transmitted according to selected path then, data delivery is given the destination server of user capture by last access server.

Access server of the present utility model adopts the server hardware of dependable performance, and Windows operating system or Unix/Linux operating system are installed, and the software that is used to provide the software of VPN access service and is used to make up overlay network (Overlay) is installed simultaneously.

All access servers in the utility model can be accepted the connection request of user terminal as VPN Server.Owing to set up overlay network between all access servers, so overlay network also can be regarded as a kind of complete distributed VPN network by secure tunnel.Such structure has realized load balance between the access server, has improved the VPN network throughput.Simultaneously certain access server need to safeguard, upgrade or break down can't work in, can proper communication between other access server, thereby solved Single Point of Faliure, improved the robustness and the reliability of whole VPN network based on user's tradition VPN Server.

Be connected the security key management technology that adopted between user terminal and the access server, the both possesses the X.509 digital certificate that control centre issues, before connecting, to carry out the digital certificate checking, have only by checking and just can connect, just can carry out transfer of data then, the data of transmitting between user terminal and the access server are all passed through SSL and are encrypted, and these safety measures can guarantee the user's data fail safe.

User terminal of the present utility model adopts embedded design, uses special-purpose high speed embedded chip, and highly integrated, compact design of electronic circuits is provided with two standard RJ45 interfaces.This user terminal prepackage embeds linux system, and embedded WebService can carry out telemanagement by browser, adopts ICP/IP protocol to carry out message transmission simultaneously, uses simply, has very strong scene operation high reliability and high performance price ratio.

Use the utility model can promote user's internet access speed greatly.

Description of drawings

Fig. 1 is the utility model structural representation

Fig. 2 is the utility model topological diagram

Embodiment

Consult Fig. 1, Fig. 2, the utility model is based on the internet framework, it comprises: several access servers 101, the Internet application server 103, ADSL Modem 104, subscriber computer 106 and user terminal 105, by the Internet continuous formation overlay network 102, the Internet application server 103 is connected with overlay network 102 by the Internet between described several access servers 101; User terminal 105 is set up the VPN(Virtual Private Network) passage by the Internet and several access servers 101; User terminal 105 is provided with the RJ-45 interface of two standards, and one of them links to each other with subscriber computer 106 as the Local Area Network interface, and another mouthful links to each other with ADSL Modem 104 as wide area network (WAN) interface.User terminal is operated under the bridge pattern, mode with series connection inserts between subscriber computer 106 and the ADSLModem 104, the user needn't reset and revise route, the network equipment in user's legacy network (comprising main frame, router, switch etc.) and the setting (comprising IP address and gateway) of all computers do not need to carry out any modification, can not influence the normal use of network in layoutprocedure.

After finishing necessary configuration, user terminal 105 can be set up VPN with access server 101 nearby automatically and be connected, and connection procedure is as follows:

A, user terminal 105 detect the connection speed with each access server 101 automatically, select the fastest access server of connection speed then, propose the access request to this access server, and the digital certificate of user terminal is provided simultaneously;

B, access server 101 verify customer digital certificate after receiving the access application of user terminal 105, if checking does not insert request by refusing user's then, if reply by then sending to accept to insert to user terminal;

Setting up VPN with access server 101 after c, user terminal 105 receive and accept to reply is connected.

After connecting foundation, the flow of user capture the Internet all can enter in the overlay network 102 by the VPN passage between user terminal 105 and the access server 101.Overlay network 102 can according in the overlay network that do not coexist of user capture destination automatically for the user selects the fastest path of access speed, thereby the speed of server that makes user's access internet different regions and different application server can both get a promotion.

Claims

1, a kind of ADSL online accelerating system based on overlay network, it is characterized in that this system comprises: several access servers (101), the Internet application server (103), ADSL Modem (104), subscriber computer (106) and user terminal (105), by the Internet continuous formation overlay network (102), the Internet application server (103) is connected with overlay network (102) by the Internet between described several access servers (101); User terminal (105) is set up the VPN(Virtual Private Network) passage by the Internet and several access servers (101); Described user terminal (105) comprises two standard interfaces, and one of them interface links to each other with ADSL Modem (104), and another interface links to each other with subscriber computer (106).

2, the ADSL online accelerating system based on overlay network according to claim 1 is characterized in that overlay network (102) is linked to each other by unicast mechanisms between the node on the internet in twos by several access servers (101).