Peer-to-peer connection between switch fabric endpoint nodes

• US 20070280253A1
• Filed: 05/30/2006
• Published: 12/06/2007
• Est. Priority Date: 05/30/2006
• Status: Active Grant

• Current Assignee: Intel Corporation
• Original Assignee: Intel Corporation
• Inventors: Rooholamini, Mo, McQueen, Ward, Kapoor, Randeep
• Granted Patent: US 7,764,675 B2
• Time in Patent Office: Days
• US Class Current: 370/395.200
• 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 45/02 Topology update or discovery
• CPC Class Codes: H04L 49/253 using establishment or release of connections between ports

Abstract

A method includes receiving a request from an endpoint node on a switch fabric to establish a peer-to-peer connection with another node on the switch fabric. The peer-to-peer connection is to be used to exchange data with the other node via a path routed through the switch fabric. The path is routed through an intermediary node on the switch fabric. One or more parameters are obtained that enable the endpoint node to exchange data with the other node. The one or more parameters are maintained in a data repository at a given endpoint node on the switch fabric. The implementation also includes establishing the peer-to-peer connection based on the one or more parameters obtained from the data repository and based on a given switch fabric topology.

Claims

1. A method comprising:

receiving a request from an endpoint node on a switch fabric, the request to establish a peer-to-peer connection with another endpoint node on the switch fabric to exchange data with the other endpoint node through the peer-to-peer connection and via a path routed through the switch fabric, the path routed through an intermediary node on the switch fabric;

obtaining one or more parameters to enable the endpoint node to exchange data with the other endpoint node, the one or more parameters maintained in a data repository at a given endpoint node on the switch fabric; and

establishing the peer-to-peer connection based on the one or more parameters obtained from the data repository and on a given switch fabric topology.

2. A method according to claim 1, further comprising:

notifying the endpoint node that the peer-to-peer connection with the other endpoint node is established for the endpoint node to exchange data with the other node through the peer-to-peer connection and via the path routed through the switch fabric.

3. A method according to claim 2, further comprising:

updating the path routed through the switch fabric to another path routed through the switch fabric based, at least in part, on a change in the given switch fabric topology, the other path routed through another intermediary node on the switch fabric; and

notifying both the endpoint node and the other endpoint node that the peer-to-peer connection is to be routed via the other path.

4. A method according to claim 2, further comprising:

receiving a close request from the endpoint node to close the peer-to-peer connection; and

notifying the other endpoint node to close the peer-to-peer connection.

5. A method according to claim 2, further comprising:

receiving a pause request from the endpoint node to pause the peer-to-peer connection;

notifying the other endpoint node to pause the peer-to-peer connection;

receiving a resume request from the endpoint node to resume the peer-to-peer connection; and

notifying the other endpoint to resume the peer-to-peer connection to exchange data through the peer-to-peer connection via the path routed through the switch fabric.

6. A method according to claim 1, wherein the switch fabric comprises the switch fabric to operate in compliance with an Advanced Switching Interconnect specification to include Advanced Switching Interconnect Core Architecture Specification, Revision 1.1.

7. A method according to claim 6, wherein to exchange data with the other endpoint node through the peer-to-peer connection comprises exchanging data using Simple Load/Store communication protocols in accordance with another Advanced Switching Interconnect specification to include Simple Load/Store Specification, Revision 1.1.

8. A method according to claim 7, wherein the one or more parameters to enable the endpoint node to exchange data with the other endpoint node includes a peer-to-peer identifier for the endpoint node, the number of apertures the other endpoint node has available for Simple Load/Store transactions, an aperture index value to select an aperture table and an aperture index for synchronization.

9. A method according to claim 7, wherein exchanging data using Simple Load/Store communication protocols comprises the endpoint node implementing a Simple Load/Store write transaction with the other endpoint node.

10. A method comprising:

maintaining a communication channel between a computing system and an endpoint node on a switch fabric coupled to a communications network, the computing system to obtain video content over the communication channel, the endpoint node to;

request establishment of a peer-to-peer connection with another endpoint node on the switch fabric for the endpoint node to receive video content stored at the other endpoint node, the video content received through a peer-to-peer connection via a path routed through an intermediary node on the switch fabric;

receive an indication that the peer-to-peer connection has been established with the other endpoint node via the path based on a given switch fabric topology and on one or more parameters maintained in a data repository at a given endpoint node on the switch fabric, the one or more parameters to enable the endpoint node to exchange data with the other endpoint node through the peer-to-peer connection and via the path routed through the switch fabric; and

obtain the video content from the other endpoint node based on the indication that the peer-to-peer connection has been established;

sending the video content from the endpoint node on the switch fabric to the computing system via the communication channel.

11. A method according to claim 10, wherein the switch fabric comprises the switch fabric to operate in compliance with an Advanced Switching Interconnect specification to include Advanced Switching Interconnect Core Architecture Specification, Revision 1.1.

12. A method according to claim 11, wherein to receive video content stored at the other endpoint node through the peer-to-peer connection and via the path routed through the switch fabric comprises receiving the video content using Simple Load/Store communication protocols in accordance with another Advanced Switching Interconnect specification to include Simple Load/Store Specification, Revision 1.1.

13. A method according to claim 12, wherein receiving the video content using Simple Load/Store communication protocols comprises the endpoint node implementing a Simple Load/Store read transaction with the other endpoint node.

14. An apparatus comprising:

an endpoint node on a switch fabric, the endpoint node including logic to;

generate a request to a switch fabric service hosted on an endpoint node, the request to establish a peer-to-peer connection with another endpoint node on the switch fabric to exchange data with the other endpoint node through the peer-to-peer connection and via a path routed through the switch fabric, the path routed through an intermediary node on the switch fabric;

receive an indication that the peer-to-peer connection has been established with the other endpoint node based on a given switch fabric topology and one or more parameters maintained in a data repository at a given endpoint node on the switch fabric, the one or more parameters to enable the endpoint node to exchange data via the peer-to-peer connection with the other endpoint node; and

exchange data with the other endpoint node based on the indication.

15. An apparatus according to claim 14, wherein the switch fabric comprises the switch fabric to operate in compliance with an Advanced Switching Interconnect specification to include Advanced Switching Interconnect Core Architecture Specification, Revision 1.1.

16. An apparatus according to claim 15, wherein to exchange data with the other endpoint node through the peer-to-peer connection comprises exchanging data using Simple Load/Store communication protocols in accordance with another Advanced Switching Interconnect specification to include Simple Load/Store Specification, Revision 1.1.

17. An apparatus according to claim 16, wherein the one or more parameters to enable the endpoint node to exchange data with the other endpoint node includes a peer-to-peer identifier for the endpoint node, the number of apertures the other endpoint node has available for Simple Load/Store transactions, an aperture index value to select an aperture table and an aperture index for synchronization.

18. A switch fabric comprising:

a plurality of endpoint nodes; and

a first endpoint node from among the endpoint nodes, the first endpoint node to host a peer-to-peer service for the switch fabric, the first endpoint node to include logic to;

receive a request from a second endpoint node from among the endpoint nodes, the request to establish a peer-to-peer connection with a third endpoint node from among the nodes, the peer-to-peer connection to exchange data with the third endpoint node through the peer-to-peer connection and via a path routed through one or more switch nodes on the switch fabric;

obtain one or more parameters to enable the second endpoint node to exchange data with the third endpoint node, the one or more parameters maintained in a data repository at a given endpoint node from among the endpoint nodes; and

establish the peer-to-peer connection based on the one or more parameters obtained from the data repository and on a given topology for the switch fabric, the given topology to include the endpoint nodes and the one or more switch nodes.

19. A switch fabric according to claim 18, further comprising the logic to:

notify the endpoint node that the peer-to-peer connection with the other endpoint node is established for the endpoint node to exchange data with the other endpoint node through the peer-to-peer connection and via the path routed through the switch fabric.

20. A switch fabric according to claim 19, wherein the switch fabric operates in compliance with an Advanced Switching Interconnect specification to include Advanced Switching Interconnect Core Architecture Specification, Revision 1.1.

21. A switch fabric according to claim 20, wherein to exchange data with the other endpoint node through the peer-to-peer connection comprises exchanging data using Simple Load/Store communication protocols in accordance with another Advanced Switching Interconnect specification to include Simple Load/Store Specification, Revision 1.1.

22. A switch fabric according to claim 20, wherein the data repository at the given endpoint node comprises the given endpoint node as a host for a fabric owner service for the switch fabric.

23. A machine-accessible medium comprising content, which, when executed by an endpoint node on a switch fabric causes the endpoint node to:

receive a request from an endpoint node on a switch fabric, the request to establish a peer-to-peer connection with another endpoint node on the switch fabric to exchange data with the other endpoint node through the peer-to-peer connection and via a path routed through the switch fabric, the path routed through an intermediary node on the switch fabric;

obtain one or more parameters to enable the endpoint node to exchange data with the other endpoint node, the one or more parameters maintained in a data repository at a given endpoint node on the switch fabric; and

establish the peer-to-peer connection based on the one or more parameters obtained from the data repository and on a given switch fabric topology.

24. A machine-accessible medium according to claim 23, further comprising the endpoint node to:

notify the endpoint node that the peer-to-peer connection with the other endpoint node is established for the endpoint node to exchange data with the other node through the peer-to-peer connection and via the path routed through the switch fabric.

25. A machine-accessible medium according to claim 24, wherein the switch fabric operates in compliance with an Advanced Switching Interconnect specification to include Advanced Switching Interconnect Core Architecture Specification, Revision 1.1.

26. A machine-accessible medium according to claim 25, wherein to exchange data with the other endpoint node through the peer-to-peer connection comprises exchanging data using Simple Load/Store communication protocols in accordance with another Advanced Switching Interconnect specification to include Simple Load/Store Specification, Revision 1.1.