Method of autonomic representative selection in local area networks

• US 10,069,642 B2
• Filed: 03/03/2017
• Issued: 09/04/2018
• Est. Priority Date: 08/26/2009
• Status: Active Grant

• Current Assignee: Kyndryl Incorporated
• Original Assignee: International Business Machines Corporation
• Inventors: Kobayashi, Kenji, Kuwahara, Takeshi
• Primary Examiner(s): Dinh, Khanh
• Application Number:
  US15/448,623
• Publication Number:
  US 20170180144A1
• Time in Patent Office: 550 Days
• Field of Search: 709203, 709 20, 709224, 709227, 709228, 709220, 709226
• CPC Class Codes: H04L 12/1854 with non-centralised forwarding system, e.g. chaincast
• CPC Class Codes: H04L 12/1886 with traffic restrictions for efficiency improvement, e.g. involving subnets or subdomains
• CPC Class Codes: H04L 45/00 Routing or path finding of packets in data switching networks routing or path finding in wireless networks H04W40/00
• CPC Class Codes: H04L 67/01 Protocols
• CPC Class Codes: H04L 69/16 Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
• CPC Class Codes: H04L 69/329 in the application layer [OSI layer 7]
• 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

A method and apparatus for selecting a client computer as a relay server to rebroadcast common application information that is broadcast from a server system over a network. The client computer is selected randomly to rebroadcast the User Datagram Protocol (UDP) information received from the server system and client computers receiving the UDP information from another client computer relay server on the network do not rebroadcast the information. If the client computer selected to rebroadcast the common information fails to rebroadcast, another client computer is randomly selected as a relay server and takes over rebroadcasting the common information.

Claims

1. A method comprising:

for each given client computer of a plurality of client computers of a first broadcast segment of a wide area network, randomly generating a respectively associated fixed rebroadcast interval t′

2;

determining that a first client computer of the plurality of client computers has a shortest respectively associated fixed rebroadcast interval t′

2;

responsive to the determination that the first client computer of the plurality of client computers has the shortest respectively associated fixed rebroadcast interval t′

2, selecting the first client computer as a current designated rebroadcasting client computer for the first broadcast segment;

subsequent to the selection of the first client computer as a current designated rebroadcasting client computer for the first broadcast segment, receiving, by the first client computer, through a communication network and from a broadcast server, a first broadcast data set; and

responsive to the receipt of the first broadcast data set, broadcasting, by the first client computer and to each client computer of the plurality of client computers of the first broadcast segment, the first broadcast data set.

2. The method of claim 1 wherein the first broadcast data set includes information indicative of call waiting information for a call center.

3. The method of claim 1 wherein the first broadcast segment corresponds to client computers in a common local area network (LAN).

4. The method of claim 1 wherein the first broadcast segment corresponds to client computers in a common subset of a local area network (LAN).

5. A computer program product comprising:

a machine readable storage device; and

computer code stored on the machine readable storage device, with the computer code including instructions for causing a processor(s) set to perform operations including the following;

for each given client computer of a plurality of client computers of a first broadcast segment of a wide area network, randomly generating a respectively associated fixed rebroadcast interval t′

2,

determining that a first client computer of the plurality of client computers has a shortest respectively associated fixed rebroadcast interval t′

2,

responsive to the determination that the first client computer of the plurality of client computers has the shortest respectively associated fixed rebroadcast interval t′

2, selecting the first client computer as a current designated rebroadcasting client computer for the first broadcast segment,

subsequent to the selection of the first client computer as a current designated rebroadcasting client computer for the first broadcast segment, receiving, by the first client computer, through a communication network and from a broadcast server, a first broadcast data set, and

responsive to the receipt of the first broadcast data set, broadcasting, by the first client computer and to each client computer of the plurality of client computers of the first broadcast segment, the first broadcast data set.

6. The computer program product of claim 5 wherein the first broadcast data set includes information indicative of call waiting information for a call center.

7. The computer program product of claim 5 wherein the first broadcast segment corresponds to client computers in a common local area network (LAN).

8. The computer program product of claim 5 wherein the first broadcast segment corresponds to client computers in a common subset of a local area network (LAN).

9. A computer system comprising:

a processor(s) set;

a machine readable storage device; and

computer code stored on the machine readable storage device, with the computer code including instructions for causing the processor(s) set to perform operations including the following;

for each given client computer of a plurality of client computers of a first broadcast segment of a wide area network, randomly generating a respectively associated fixed rebroadcast interval t′

2,

determining that a first client computer of the plurality of client computers has a shortest respectively associated fixed rebroadcast interval t′

2,

responsive to the determination that the first client computer of the plurality of client computers has the shortest respectively associated fixed rebroadcast interval t′

2, selecting the first client computer as a current designated rebroadcasting client computer for the first broadcast segment,

subsequent to the selection of the first client computer as a current designated rebroadcasting client computer for the first broadcast segment, receiving, by the first client computer, through a communication network and from a broadcast server, a first broadcast data set, and

responsive to the receipt of the first broadcast data set, broadcasting, by the first client computer and to each client computer of the plurality of client computers of the first broadcast segment, the first broadcast data set.

10. The computer system of claim 9 wherein the first broadcast data set includes information indicative of call waiting information for a call center.

11. The computer system of claim 9 wherein the first broadcast segment corresponds to client computers in a common local area network (LAN).

12. The computer system of claim 9 wherein the first broadcast segment corresponds to client computers in a common subset of a local area network (LAN).