Method for using a computer network

• US 9,083,542 B2
• Filed: 02/09/2009
• Issued: 07/14/2015
• Est. Priority Date: 02/09/2009
• Status: Active Grant

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Smaak, Marc, van Tienen, Stephan
• Primary Examiner(s): Patel, Chandrahas
• Assistant Examiner(s): TRUONG, LAN-HUONG
• Application Number:
  US13/148,481
• Publication Number:
  US 20120047405A1
• Time in Patent Office: 2,346 Days
• Field of Search: 709/223, 709/238, 709/240, 709/245, 709/242
• US Class Current: 1/1
• CPC Class Codes: H04L 12/1868 Measures taken after transmission, e.g. acknowledgments
• CPC Class Codes: H04L 45/02 Topology update or discovery
• CPC Class Codes: H04L 45/028 Dynamic adaptation of the update intervals, e.g. event-triggered updates
• CPC Class Codes: H04L 45/16 Multipoint routing
• CPC Class Codes: H04L 45/22 Alternate routing
• CPC Class Codes: H04L 45/28 using route fault recovery
• CPC Class Codes: H04L 45/48 Routing tree calculation
• 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 provides for a method for using a computer network (10) comprising a number of switches (18, 20) each having ports for receiving and sending streams, wherein the streams are sent from a router (14) via the ports of switches (18, 20), that have shown interest, to at least one receiver (24, 26), whereby in case of a link failure at least one of the at least one receiver (24, 26) sends back a message to the router.

Claims

1. A method for using a computer network (10) comprising a number of switches (18, 20) each having ports for receiving and sending streams, wherein the streams are sent from a router (14) via the ports of switches (18, 20) to at least one receiver (24, 26), whereby in case of a link failure where an application running on a receiver (24, 26) detects the streams have suddenly stopped, the receiver (24, 26) sends back a message to the router (14) by a network path different than the network path having the link failure;

wherein the receiver (24, 26) detecting the failure sends an Internet Group Management Protocol (IGMP) message back to the router (14) defining a new path for the streams from the router (14) to the receiver (24, 26); and

wherein the receiver (24, 26) begins to receive the streams again in less than 100 milliseconds.

2. The method according to claim 1, wherein in case of a link failure the switches (18, 20) in the network (10) will broadcast STP or RSTP messages to trigger all receivers (24, 26) to automatically send out a message.

3. The method according to claim 1, wherein the network (10) is a redundant Ethernet network.

7. The computer program with coding means incorporated on a non-transitory computer readable medium, for carrying out all the steps of a process according to claim 1, wherein the computer program is run on a computer or a corresponding computing unit.

8. A computer program with program coding means which are stored on a non-transitory computer readable data carrier, for carrying out all the steps of a process according to claim 1, wherein the computer program is run on a computer or a corresponding computing unit.

9. The method according to claim 1, wherein the Internet Group Protocol (IGMP) is used, and IGMP messages are snooped by switches (18, 20, 22).

4. A computer network comprising a router (14) and a number of switches (18, 20) each having ports for receiving and sending messages and being connected to at least one receiver (24, 26), wherein the computer network (10) is adapted for sending messages from the router (14) via the ports of switches (18, 20) to the at least one receiver (24, 26), whereby in case of a link failure where an application running on a receiver (24, 26) detects the streams have suddenly stopped, the receiver (24, 26) sends back an Internet Group Management Protocol (IGMP) message to the router (14) defining a new path for the streams from the router (14) to the receiver (24, 26) by a network path different than the network path having the link failure;

and wherein the receiver (24, 26) begins to receive the streams again in less than 100 milliseconds.

5. The computer network according to claim 4, wherein the computer network (10) is a redundant Ethernet network.

6. The computer network according to claim 4, wherein the Internet Group Management Protocol (IGMP) is used.