MULTI-CONNECTION SYSTEM AND METHOD FOR SERVICE USING INTERNET PROTOCOL

• US 20160173452A1
• Filed: 06/27/2014
• Published: 06/16/2016
• Est. Priority Date: 06/27/2013
• Status: Active Grant

• Current Assignee: Jeong Hoan Seo, Young Suk Lim
• Original Assignee: Jeong Hoan Seo, Young Suk Lim
• Inventors: Seo, Jeong Hoan, LIM, Young Suk
• Granted Patent: US 9,762,546 B2
• Time in Patent Office: Days
• CPC Class Codes: H04L 12/6418 Hybrid transport
• CPC Class Codes: H04L 41/0668 by dynamic selection of recovery network elements, e.g. replacement by the most appropriate element after failure
• CPC Class Codes: H04L 45/24 Multipath
• CPC Class Codes: H04L 45/36 Backward learning
• CPC Class Codes: H04L 47/34 ensuring sequence integrity, e.g. using sequence numbers
• CPC Class Codes: H04L 61/4511 using domain name system [DNS]
• CPC Class Codes: H04L 61/5007 Internet protocol [IP] addresses
• CPC Class Codes: H04L 63/0281 Proxies
• CPC Class Codes: H04L 63/1458 Denial of Service
• CPC Class Codes: H04L 67/01 Protocols
• CPC Class Codes: H04L 67/141 Setup of application sessions admission control or resource allocation in data switching networks H04L47/70
• CPC Class Codes: H04L 67/2866 Architectures; Arrangements
• CPC Class Codes: H04L 67/56 Provisioning of proxy services store-and-forward switching systems in data switching networks H04L12/54
• CPC Class Codes: H04L 69/14 Multichannel or multilink protocols

Abstract

Disclosed are a multi-connection system (MCS) and method for a service using an Internet protocol. The MCS includes a plurality of proxies; an MCS client to receive a packet to be transmitted from the client to the server, generate MCS packets by adding an MCS sequence identification (ID) to the packet, and sequentially and respectively transmit the MCS packets to the plurality of proxies, wherein a number of MCS packets corresponds to a number of pieces of proxy access information connected to the plurality of proxies or a set number of pieces of proxy access information; and an MCS server to respectively receive the MCS packets from the plurality of proxies; extract the MCS sequence IDs from the MCS packets, compare the extracted MCS sequence IDs with MCS sequence IDs stored beforehand; store the extracted MCS sequence IDs, generate server-receivable packets from the MCS packets, and transmit the server-receivable packets to the server when the extracted MCS sequence IDs are not identical to the stored MCS sequence IDs; and block the MCS packets from being transmitted to the server when the extracted MCS sequence IDs are identical to the stored MCS sequence IDs.

Claims

1. A multi-connection system (MCS) configured to connect a client and a server in a multi-connection manner for a service using an Internet protocol, the MCS comprising:

a plurality of proxies;

an MCS client configured to receive a packet to be transmitted from the client to the server, generate MCS packets by adding an MCS sequence identification (ID) identifying the packet to the packet, and sequentially and respectively transmit the MCS packets to the plurality of proxies connected via a network, wherein a number of MCS packets corresponds to a number of pieces of proxy access information connected to the plurality of proxies or a set number of pieces of proxy access information; and

an MCS server configured to respectively receive the MCS packets from the plurality of proxies;

extract the MCS sequence IDs from the MCS packets, compare the extracted MCS sequence IDs with MCS sequence IDs stored beforehand;

store the extracted MCS sequence IDs, generate server-receivable packets from the MCS packets, and transmit the server-receivable packets to the server when the extracted MCS sequence IDs are not identical to the stored MCS sequence IDs; and

block the MCS packets from being transmitted to the server when the extracted MCS sequence IDs are identical to the stored MCS sequence IDs.

2. The MCS of claim 1, wherein the MCS client transmits a query requesting proxy access information to the server or a domain name server (DNS) which uses or provides pieces of preset proxy access information, receives the proxy access information from the DNS, and uses the proxy access information as the pieces of set proxies access information.

3. The MCS of claim 1, wherein the MCS client stores access information by forming sessions with the plurality of proxies, and transmits the MCS packets, to which the MCS sequence IDs are added, to the plurality of proxies.

4. The MCS of claim 3, wherein the MCS client sets packet transmission priorities to be assigned to the plurality of proxies, and transmits the MCS packets to the plurality of proxies according to the set packet transmission priorities, wherein the packet transmission priorities are set based on times when the MCS client transmits a device-checking packet to the plurality of proxies and receives responses from the plurality of proxies.

5. The MCS of claim 1, wherein, when the MCS packets are respectively received from the plurality of proxies, the MCS server sets priorities to be assigned to the plurality of proxies, based on an order in which the MCS packets are received.

6. A multi-connection system (MCS) configured to connect a client and a server in a multi-connection manner for a service using an Internet protocol, the system comprising:

a plurality of proxies;

an MCS server configured to receive a packet from the server, generate MCS packets by adding an MCS sequence identification (ID) identifying the packet to the packet, and sequentially and respectively transmit the MCS packets to the plurality of proxies connected via a network, wherein a number of MCS packets corresponds to a number of pieces of proxy access information connected to the plurality of proxies or a set number of pieces of proxy access information;

an MCS client configured to respectively receive the MCS packets from the plurality of proxies;

extract the MCS sequence IDs from the MCS packets;

compare the extracted MCS sequence IDs with MCS sequence IDs stored beforehand;

store the extracted MCS sequence IDs, generate client-receivable packets from the MCS packets, and transmit the client-receivable packets to the client when the extracted MCS sequence IDs are not identical to the stored MCS sequence IDs, and block the MCS packets received from the plurality of proxies from being transmitted to the client when the extracted MCS sequence IDs are identical to the stored MCS sequence IDs.

7. The MCS of claim 6, wherein the MCS server transmits the MCS packets, to which the MCS sequence IDs are added, to the plurality of proxies connected via the network, based on preset transmission priorities assigned to the plurality of proxies, wherein the MCS server sets the preset transmission priorities based on an order in which packets are respectively received from the plurality of proxies.

8. The MCS of claim 6, wherein the MCS server stores access information by forming sessions with the plurality of proxies, and transmits the MCS packets, to which the MCS sequence IDs are added, to the plurality of proxies.

9. A multi-connection system (MCS) client comprising:

a forward packet receiving unit configured to receive a forward packet to be transmitted from a client to a server;

an MCS packet generation unit configured to generate a forward MCS packet by adding a forward MCS sequence identification (ID) identifying the forward packet to the forward packet;

a forward packet transmission unit configured to sequentially and respectively transmit the forward MCS packet to the plurality of proxies;

a backward packet receiving unit configured to respectively receive backward MCS packets from the plurality of proxies;

a packet determination unit configured to extract backward MCS sequence IDs from the MCS backward packets, check whether the extracted MCS sequence IDs are identical to MCS sequence Ds stored beforehand, block the backward MCS packets received from the plurality of proxies from being transmitted to the client when the extracted MCS sequence IDs are identical to the stored MCS sequence IDs, and store the extracted MCS sequence IDs when the extracted MCS sequence IDs are not identical to the stored MCS sequence IDs;

a packet generation unit configured to generate server-receivable packets from the backward MCS packets received from the plurality of proxies when the extracted MCS sequence IDs are not identical to MCS sequence IDs; and

a backward packet transmission unit configured to transmit the server-receivable packets to the client.

10. The MCS client of claim 9, further comprising a connection controller configured to transmit a query requesting proxy access information to the server or a domain name server (DNS) which uses or provides pieces of preset proxy access information, receives proxy access information from the DNS, and uses the proxy access information as pieces of set proxy access information.

11. The MCS client of claim 9, further comprising:

a failure detection unit configured to detect a failure occurring in the plurality of proxies; and

a failure restoration unit configured to search for a list of available proxy servers when a failure is detected, select an available proxy server from the list other than the plurality of proxies, and replace a proxy in which the failure occurs with the selected proxy server.

12. The MCS client of claim 9, wherein further comprising:

a failure detection unit configured to detect a failure occurring in the plurality of proxies; and

a failure restoration unit configured to transmit a query requesting proxy access information to the server or a domain name server (DNS) which provides proxy access information when a failure is detected, receive the proxy access information from the DNS, and replace a proxy in which the failure occurs with a proxy corresponding to the proxy access information.

13. A multi-connection system (MCS) server comprising:

a backward packet receiving unit configured to receive a backward packet to be transmitted from a server to a client;

an MCS packet generation unit configured to generate backward MCS packets in a number of proxies connected to the MCS by adding a backward MCS sequence identification (ID) identifying the backward packet to the backward packet;

a backward packet transmission unit configured to sequentially and respectively transmit the backward MCS packets to the plurality of proxies;

a forward packet receiving unit configured to respectively receive forward MCS packets from the plurality of proxies;

a packet determination unit configured to extract forward MCS sequence IDs from the forward MCS packets, check whether the extracted forward MCS sequence IDs are identical to forward MCS sequence ID stored beforehand, block the forward MCS packets received from the plurality of proxies from being transmitted to the server when the extracted forward MCS sequence IDs are identical to the stored forward MCS sequence IDs, and store the extracted forward MCS sequence IDs when the extracted forward MCS sequence IDs are not identical to the stored forward MCS sequence IDs;

a packet generation unit configured to generate server-receivable packets from the forward MCS packets from the plurality of proxies when the extracted forward MCS sequence IDs are not identical to the stored forward MCS sequence IDs;

a forward packet transmission unit configured to transmit the server-receivable packets to the server.

14. The MCS server of claim 13, further comprising a proxy priority setting unit configured to set transmission priorities to be assigned to the plurality of proxies based on an order in which packets are respectively received from the plurality of proxies when the packets are respectively received from the plurality of proxies, and

wherein the backward packet transmission unit transmits the backward MCS packets, to which the backward MCS sequence IDs are added, to the plurality of proxies connected via a network, according to the transmission priorities.

15. A multi-connection method for a service using an Internet protocol, the method comprising:

generating multi-connection system (MCS) packets by adding an MCS sequence identification (ID) identifying the packet to a packet when the packet is received from a client, the generating of the MCS packet being performed by an MCS client;

sequentially and respectively transmitting the MCS packets to a plurality of proxies connected via a network, the sequentially transmitting of the MCS packet being performed by the MCS client;

transmitting the MCS packets received from the MCS client to an MCS server connected to the plurality of proxies via the network, the transmitting of the MCS packets being performed by the plurality of proxies;

checking MCS sequence IDs included in the MCS packets when the MCS packets are respectively received from the plurality of proxies, the checking of the MCS sequence IDs being performed by the MCS server;

storing the MCS sequence IDs when the MCS sequence IDs are not identical to MCS sequence IDs stored in the MCS server, generating server-receivable packets from the MCS packets, and transmitting the server-receivable packets to the server, wherein the storing the MCS sequence IDs, the generating of the server-receivable packets, and the transmitting of the server-receivable packets are performed by the MCS server; and

blocking the MCS packets received from the plurality of proxies from being transmitted to the server when the MCS sequence IDs are identical to the stored MCS sequence IDs, the blocking of the MCS packets being performed by the MCS server.

16. The multi-connection method of claim 15, wherein the MCS client stores access information by forming sessions with the plurality of proxies, and transmits the MCS packets to the plurality of proxies.

17. The multi-connection method of claim 16, wherein the MCS client sets packet transmission priorities to be assigned to the plurality of proxies and transmits packets to the plurality of proxies according to the packet transmission priorities, wherein the MCS client transmits a device-checking packet to the plurality of proxies and sets the packet transmission priorities based on times when responses are received from the plurality of proxies.

18. The multi-connection method of claim 15, wherein the MCS server sets priorities to be assigned to the plurality of proxies based on an order in which packets are received from the plurality of proxies when the packets are respectively received from the plurality of proxies.

19. A multi-connection method for a service using an Internet protocol, the method comprising:

generating multi-connection system (MCS) packets by adding an MCS sequence identification (ID) to a packet when the packet is received from a server, the generating of the MCS packet being performed by an MCS server, wherein the MCS sequence ID identifies the packet;

sequentially and respectively transmitting the MCS packets to a plurality of proxies connected via a network, the sequentially transmitting of the MCS packet being performed by the MCS server;

checking the MCS sequence IDs included in the MCS packets when the MCS packets are respectively received from the plurality of proxies, the checking of the MCS sequence IDs being performed by the MCS client;

storing the MCS sequence IDs when the MCS sequence IDs are not identical to MCS sequence IDs stored in the MCS client, generating client-receivable packets from the MCS packets, and transmitting the client-receivable packets to the client, wherein the storing the MCS sequence IDs, the generating of the client-receivable packets, and the transmitting of the client-receivable packets are performed by the MCS client; and

blocking the MCS packets received from the plurality of proxies from being transmitted to the client when the MCS sequence IDs are identical to the stored MCS sequence IDs, the blocking of the MCS packets being performed by the MCS client.

20. The multi-connection method of claim 19, wherein the MCS client transmits the MCS packets, to which the MCS sequence IDs are added, to the plurality of proxies connected via the network according to preset transmission priorities assigned to the plurality of proxies, wherein the MCS server sets the transmission priorities based on an order in which packets are respectively received from the plurality of proxies.

21. The multi-connection method of claim 19, wherein the MCS server stores access information by forming sessions with the plurality of proxies, and transmits the MCS packets to the plurality of proxies.