Method and system for dynamic interleaving

• US 20050027788A1
• Filed: 06/17/2004
• Published: 02/03/2005
• Est. Priority Date: 06/17/2003
• Status: Active Grant

• Current Assignee: Citrix Systems, Inc. (Cloud Software Group)
• Original Assignee: Citrix Systems, Inc. (Cloud Software Group)
• Inventors: Stavrakos, Nicholas James, Koopmans, Christopher Raymond, Koopmans, Frederick Alan, Antonysamy, Amalraj
• Granted Patent: US 9,357,033 B2
• Time in Patent Office: Days
• US Class Current: 709/200
• CPC Class Codes: H04L 47/24 Traffic characterised by specific attributes, e.g. priority or QoS
• CPC Class Codes: H04L 67/01 Protocols
• CPC Class Codes: H04L 67/02 based on web technology, e.g. hypertext transfer protocol [HTTP]
• 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 67/60 Scheduling or organising the servicing of application requests, e.g. requests for application data transmissions using the analysis and optimisation of the required network resources admission control or resource allocation H04L47/70
• CPC Class Codes: H04L 69/14 Multichannel or multilink protocols
• CPC Class Codes: H04L 69/166 IP fragmentation; TCP segmentation

Abstract

A network environment includes a client station coupled to a proxy server via a first network and one or more content servers coupled to the proxy server via a second network. A plurality of connections are established between the client station and the proxy server over the first network. Requests are dynamically interleaved over any of the connections to the proxy server by the client station. Content is retrieved for the requests from any of the content servers over the second network by the proxy server. Responses including retrieved content for respective requests are dynamically interleaved over any of the connections by the proxy server to the client station.

Claims

1. In a network environment having a client station coupled to a proxy server via a first network and one or more content servers coupled to the proxy server via a second network, a method comprising:

establishing a plurality of connections between the client station and the proxy server over the first network;

dynamically interleaving requests over any of the connections to the proxy server by the client station;

retrieving content for the requests from any of the content servers over the second network by the proxy server; and

dynamically interleaving responses including retrieved content for respective requests over any of the connections by the proxy server to the client station.

2. The method of claim 1, wherein dynamically interleaving requests includes sending requests to the proxy server in any order or in a specified order.

3. The method of claim 2, wherein dynamically interleaving responses includes sending responses to the client station in any order or in a specified order.

4. The method of claim 1, wherein dynamically interleaving requests includes selecting a connection for sending a request based on a classification of the request.

5. The method of claim 1, wherein dynamically interleaving responses includes selecting a connection for sending a response based on a classification of the response.

6. The method of claim 1, further comprising:

receiving an abort request for a previous request;

and aborting the request with out tearing down the connection that previous request was sent on.

7. The method of claim 6, further comprising:

resuming the aborted request on a different connection.

8. A client station comprising:

at least one queue to store one or more requests;

a user agent generating requests for an object;

a processing engine that receives the requests, classifies the requests, stores the requests in the queue, and selects an ordering for sending the requests based on the classification of the requests.

9. The client station of claim 8, wherein the processing engine selects one or more connections for sending the requests based on the classification of the requests.

10. A proxy server comprising:

at least one queue to store one or more responses;

a processing engine that receives responses from a content server, classifies the responses, stores the responses in the queue, and selects an ordering for sending the responses based on the classification of the responses.

11. The proxy server of claim 10, wherein the processing engine selects one or more connections for sending the responses based on the classification of the responses.

12. The proxy server of claim 10, wherein the processing engine orders responses based on a user'"'"'s experience.

13. In a system comprising at least one client station coupled to a proxy server via a network, a method comprising:

establishing at least one connection between the client station and proxy server;

dynamically interleaving requests to the proxy server from the client station over any established connection; and

dynamically interleaving responses from the proxy server to the client station over any established connection.

14. The method of claim 13, further comprising:

sending control information from the proxy server to the client station specifying a maximum number of outstanding requests the client station may send before receiving a response.

15. The method of claim 13, further comprising:

sending control information from the client station to the proxy server specifying an order for the proxy server to send responses to the client station.

16. The method of claim 13, further comprising:

sending control information from the client station to the proxy server allowing the proxy server to send responses to the client station in any order.

17. The method of claim 13, further comprising:

maintaining the established connections independent of a number of outstanding requests.

18. The method of claim 13, further comprising:

sending a request on one of the established connections; and

sending a response to the request on a different established connection.

19. The method of claim 13, further comprising:

multiplexing requests or parts of requests on any of the established connections; and

multiplexing responses or parts of responses on any of the established connections.

20. The method of claim 13, further comprising:

aborting a request on a connection; and

resuming the aborted request on a different connection.

21. The method of claim 13, wherein the dynamically interleaved requests and responses are compressed.

22. A computer readable medium including instructions, which if executed by a computing system, causes the computing system to perform an operation comprising:

receiving requests for objects;

classifying the requests;

storing the requests in a plurality of queues;

and selecting an ordering for sending the requests based on the classification of the requests.

23. A computer readable medium including instructions, which if executed by a computing system, causes the computing system to perform an operation comprising:

receiving responses including objects;

classifying the responses;

storing the responses in a plurality of queues;

and selecting an ordering for sending the responses based on the classification of the requests.