METHOD AND SYSTEM FOR DISTRIBUTING INCOMING DATA

• US 20100146043A1
• Filed: 10/09/2009
• Published: 06/10/2010
• Est. Priority Date: 10/09/2008
• Status: Abandoned Application

• Current Assignee: Frequentis AG (Frequentis Group Holding GmbH)
• Original Assignee: Frequentis AG (Frequentis Group Holding GmbH)
• Inventors: Klopf, Markus
• Application Number:
  US12/576,701
• Publication Number:
  US 20100146043A1
• Time in Patent Office: Days
• US Class Current: 709/203
• CPC Class Codes: H04L 67/1001 for accessing one among a plurality of replicated servers
• CPC Class Codes: H04L 67/1034 Reaction to server failures by a load balancer
• CPC Class Codes: H04L 67/62 Establishing a time schedule for servicing the requests
• CPC Class Codes: H04L 69/28 Timers or timing mechanisms used in protocols
• CPC Class Codes: H04L 69/40 for recovering from a failure of a protocol instance or entity, e.g. service redundancy protocols, protocol state redundancy or protocol service redirection management of faults, events, alarms or notifications in data switching networks H04L41/06

Abstract

The invention relates to a method and a system for distributing incoming data (1) via servers to at least one client (9). According to the invention, it is provided that the incoming data (1) are fed to an active server (2) and to at least one further server (3) at a preset time delay (Δt).

Claims

1. A method for distributing incoming data (1), in particular air traffic data, via servers to at least one client (9), characterized in that the incoming data (1) are conveyed/fed both to an active server (2) and also to at least one further server (3) at a preset time delay (Δ

t).

2. The method according to claim 1, characterized in that, in the event of the detection of an error condition of the active server (2), the further server (3) or one of the further servers (3) takes over the role of an active server (2) and that the incoming data (1) is transmitted free from delay or without a time delay to said activated server (2) from the point in time of the detection.

3. The method according to claim 2, characterized in that the active server (2), after detection of the error condition and its re-establishment or its restart, functions as further server (3) or one of the further servers (3) and receives the data (1) in a time-delayed manner.

4. The method according to claim 1, characterized in that the clients (9) receive data (1) exclusively from the respectively active server (2) to which the incoming data (1) are fed without delay.

5. The method according to claim 1, characterized in that a time delay (Δ

t) between 2 seconds and 15 minutes is selected and, in particular, that it can be adjusted freely by the user or is variable according to random criteria.

6. A system for distributing incoming data (1) to at least one client (9), characterized in that

a) the system comprises at least two servers (2, 3), including an active server (2) to which the incoming data (1) are directly fed,

b) the system comprises a delay unit (8) to which the incoming data (1) are also directly fed, and

c) the data (1) adjacent to the outlet of the delay unit (8) are fed to the remaining servers (3).

7. The system according to claim 6, characterized in that

a) the system comprises at least one fall-back unit (4) for identifying an error condition of the active server (2), and that

b) the system comprises an activation unit (5) for active switching of one of the remaining servers (3) as active server (2) after detection of an error condition of the active server (2) by the fall-back unit.

8. The system according to claim 6, characterized by an interface adapter (7) for formatting the incoming data (1), wherein the outlet of the interface adapter (7) is connected to the active server (2) and to the delay unit (8).

9. The system according to claim 6, characterized in that at least one server (2, 3), preferably every server (2, 3), comprises a multiple of individual servers (2a, 2b;

3a, 3b), in particular similarly constructed, wherein the individual servers (2, 3) are preferably structured the same.

10. A system according to claim 6, characterized in that computer programs which implement the function of the delay unit (8), the fall-back unit (4) and/or the activation unit (5) are stored or installed on all servers (2, 3), wherein, during operation of the active server (2), the function of the delay unit (8) is realized by a computer program running on said active server (2) and, during operation on one of the further servers (3), the function of the activation unit (5) and/or the fall-back unit (4) is realized by a computer programm running on this further server (3).

11. The system according to claim 6, furthermore comprising at least one client (9), characterized in that the client (9) is exclusively connected to the active server (2) for the data transmission.

12. The system according to claim 6, characterized in that the fall-back unit (4) and the activation unit (5) are present or realized, in particular, in the same further server (3), and the system optionally comprises a storage unit for an identification or address of the server (3) to be activated in the case of an error condition.

13. The system according to claim 6, characterized in that the time delay (Δ

t) is between 2 seconds and 15 minutes and, in particular, can be adjusted freely by the user or is randomly variable.