WO2005065261B1 - Dynamic timeout in a client-server system - Google Patents

Dynamic timeout in a client-server system

Info

Publication number
WO2005065261B1
WO2005065261B1 PCT/US2004/043237 US2004043237W WO2005065261B1 WO 2005065261 B1 WO2005065261 B1 WO 2005065261B1 US 2004043237 W US2004043237 W US 2004043237W WO 2005065261 B1 WO2005065261 B1 WO 2005065261B1
Authority
WO
WIPO (PCT)
Prior art keywords
request
response
message
server
related items
Prior art date
Application number
PCT/US2004/043237
Other languages
French (fr)
Other versions
WO2005065261A2 (en
WO2005065261A3 (en
Inventor
Arthur Zavalkovsky
Jeremy Stieglitz
Original Assignee
Cisco Tech Inc
Arthur Zavalkovsky
Jeremy Stieglitz
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Cisco Tech Inc, Arthur Zavalkovsky, Jeremy Stieglitz filed Critical Cisco Tech Inc
Priority to EP20040815331 priority Critical patent/EP1700230B1/en
Priority to CN200480033530.0A priority patent/CN1882933B/en
Priority to AU2004311818A priority patent/AU2004311818A1/en
Priority to CA2546627A priority patent/CA2546627C/en
Publication of WO2005065261A2 publication Critical patent/WO2005065261A2/en
Publication of WO2005065261A3 publication Critical patent/WO2005065261A3/en
Publication of WO2005065261B1 publication Critical patent/WO2005065261B1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications

Abstract

The invention provides techniques for dynamic timout including the steps of receiving a request from a requestor (350); and if the interim message should be sent to the requestor, sending to the requestor the interim message (350) referring to the request. Techniques are also provided for dynamic timeout (360) including steps of sending a request to a server; receiving an interim message from the server, where the interim message (350) contains one or more related items; and determining whether to change a timeout value based on the one or more response related items in the interim message (370).

Claims

AMENDED CLAIMS[received by the International Bureau on 29 March 2006 (29.03.06); original claims 1, 6, 8, 11, 14, 17, 20, 23, 26, and 29 amended; remaining claims unchanged (8 pages)]
1. A method for dynamic timeout comprising machine-implemented steps of: receiving a request from a requestor at a server or a process communicatively coupled thereto; determining whether processing the request is incomplete; when processing the request is incomplete, determining whether to send an interim message based on a timeout value that the requestor uses, and in response thereto, sending to the requestor the interim message referring to the request, wherein the interim message contains one or more response-related items.
2. The method of Claim 1, wherein the one or more response-related items comprise one or more of: time estimate related to sending a response to the request; time estimate related to sending a subsequent interim message related to the request; an indication that the request has been received by the server or the process communicatively coupled thereto, and an indication that describing whether the request is well formatted; an indication of the state that the server is in; if processing the request involves multiple steps, an indication of the which steps of the multiple steps have already been performed; and if processing the request involves sending a second request to an external resource server, an indication of the status of the second request.
3. The method of Claim 1, wherein the step of determining whether the interim message should be sent to the requestor comprises determining whether one or more of the following has occurred: the request has been received; the request has been successfully parsed; the server has begun processing the request;
CPU usage of the server meets certain criteria; memory usage of the server meets certain criteria; and a queue of messages awaiting response by the server meets certain criteria.
26
4. The method of Claim 1 , wherein the step of determining whether the interim message should be sent to the requestor comprises determining whether a second request has been sent to an external resource server.
5. The method of Claim 1 , wherein the step of determining whether the interim message should be sent to the requestor comprises determining whether a second response to a second request has been received at the server from an external resource server.
6. A method for dynamic timeout comprising machine-implemented steps of: sending a request to a server; receiving an interim message from the server before receiving a response to the request, wherein the interim message contains one or more response-related items; determining whether to change a timeout value based on the one or more response- related items in the interim message; and altering a timeout value based on the one or more response-related items in the interim message to prevent a timeout before the server response is received.
7. The method of Claim 6, wherein the one or more response-related items comprise one or more of: time estimate related to sending a response to the request; time estimate related to sending a subsequent interim message related to the request; an indication that the request has been received by the server or a process communicatively coupled thereto, and an indication describing whether the request is well formatted; an indication of the state that the server is in; if processing the request involves multiple steps, an indication of the which steps of the multiple steps have already been performed; and if processing the request involves sending a second request to an external resource server, an indication of the status of the second request.
8. A machine-readable medium carrying one or more sequences of instructions for dynamic timeout, which instructions, when executed by one or more processors, cause the one or more processors to carry out the steps of: receiving a request from a requestor at a server or a process communicatively coupled thereto; determining whether processing the request is incomplete; when processing the request is incomplete, determining whether to send an interim message based on a timeout value that the requestor uses, and in response thereto, sending to the requestor the interim message referring to the request, wherein the interim message contains one or more response-related items.
9. The machine-readable medium as recited in Claim 8, wherein the instructions, when executed by one or more processors, cause the one or more processors to act as an AAA server and wherein the requestor is an AAA client, the request is a RADIUS Access Request message, and the interim message is a RADIUS Access Challenge message that contains the one or more response-related items in a Vendor Specific Attribute in the RADIUS Access Challenge message.
10. The machine-readable medium as recited in Claim 8, wherein the instructions, when executed by one or more processors, cause the one or more processors to act as an AAA server and wherein the requestor is an EAP supplicant, the request is an EAP Request, and the interim message is an EAP Notification message that contains the one or more response- related items.
11. A machine-readable medium carrying one or more sequences of instructions for dynamic timeout, which instructions, when executed by one or more processors, cause the one or more processors to carry out the steps of: sending a request to a server; receiving an interim message from the server before receiving a response to the request, wherein the interim message contains one or more response-related items; determining whether to change a timeout value based on the one or more response- related items in the interim message; and altering a timeout value based on the one or more response-related items in the interim message to prevent a timeout before the server response is received.
12. The machine-readable medium as recited in Claim 11, wherein the instructions, when executed by the one or more processors, cause the one or more processors to act as an AAA
28 client and wherein the server is an AAA server, the request is a RADIUS Access Request message, and the interim message is a RADIUS Access Challenge message that contains one or more response-related items in a Vendor Specific Attribute in the RADIUS Access Challenge message.
13. The machine-readable medium as recited in Claim 11 , wherein the instructions, when executed by the one or more processors, cause the one or more processors to act as an EAP supplicant and the server is an AAA server, the request is an EAP Request, and the interim message is an EAP Notification message that contains one or more response-related items.
14. An apparatus for dynamic timeout, comprising: a network interface that is coupled to a data network for receiving one or more packet flows therefrom; a processor; one or more stored sequences of instructions which, when executed by the processor, cause the processor to carry out the steps of: receiving a request from a requestor at a server or the process communicatively coupled thereto; determining whether processing the request is incomplete; when processing the request is incomplete, determining whether to send an interim message based on a timeout value that the requestor uses, and in response thereto, sending to the requestor the interim message referring to the request, wherein the interim message contains one or more response-related items.
15. The apparatus of Claim 14, wherein the apparatus is an AAA server and wherein the requestor is an AAA client, the request is a RADIUS Access Request message, and the interim message is a RADIUS Access Challenge message that contains the one or more response-related items in a Vendor Specific Attribute in the RADIUS Access Challenge message.
16. The apparatus of Claim 14, wherein the apparatus is an AAA server and wherein the requestor is an EAP supplicant, the request is an EAP Request, and the interim message is an EAP Notification message that contains the one or more response-related items.
29
17. An apparatus for dynamic timeout, comprising: a network interface that is coupled to a data network for receiving one or more packet flows therefrom; a processor; one or more stored sequences of instructions which, when executed by the processor, cause the processor to carry out the steps of: sending a request to a server; receiving an interim message from the server before receiving a response to the request, wherein the interim message contains one or more response-related items; determining whether to change a timeout value based on the one or more response- related items in the interim message; and altering a timeout value based on the one or more response-related items in the interim message to prevent a timeout before the server response is received.
18. The apparatus of Claim 17, wherein the apparatus is an AAA client and wherein the server is an AAA server, the request is a RADIUS Access Request message, and the interim message is a RADIUS Access Challenge message that contains one or more response-related items in a Vendor Specific Attribute in the RADIUS Access Challenge message.
19. The apparatus of Claim 17, wherein the apparatus is an EAP supplicant and wherein the server is an AAA server, the request is an EAP Request, and the interim message is an EAP Notification message that contains one or more response-related items.
20. An apparatus for dynamic timeout, comprising: means for receiving a request from a requestor at a server or the process communicatively coupled thereto; means for determining whether processing the request is incomplete; means for determining, when processing the request is incomplete, whether to send an interim message based on a timeout value that the requestor uses, and in response thereto, for sending to the requestor the interim message referring to the request, wherein the interim message contains one or more response- related items.
30
21. The apparatus of Claim 20, wherein the means for performing the steps is an AAA server and wherein the requestor is an AAA client, the request is a RADIUS Access Request message, and the interim message is a RADIUS Access Challenge message that contains the one or more response-related items in a Vendor Specific Attribute in the RADIUS Access Challenge message.
22. The apparatus of Claim 20, wherein the means for performing the steps is an AAA server and wherein the requestor is an EAP supplicant, the request is an EAP Request, and the interim message is an EAP Notification message that contains the one or more response- related items.
23. An apparatus for dynamic timeout, comprising: means for sending a request to a server; means for receiving an interim message from the server before receiving a response to the request, wherein the interim message contains one or more response- related items; means for determining whether to change a timeout value based on the one or more response-related items in the interim message; and means for altering a timeout value based on the one or more response-related items in the interim message to prevent a timeout before the server response is received.
24. The apparatus of Claim 23, wherein the means for performing the steps is an AAA client and wherein the server is an AAA server, the request is a RADIUS Access Request message, and the interim message is a RADIUS Access Challenge message that contains one or more response-related items in a Vendor Specific Attribute in the RADIUS Access Challenge message.
25. The apparatus of Claim 23, wherein the means for performing the steps is an AAA client and wherein the server is an AAA server, the request is an EAP Request, and the interim message is an EAP Notification message that contains one or more response-related items.
31
26. A method for dynamic timeout for an AAA server comprising machine-implemented steps of: receiving a request from a requestor at an AAA server or a process communicatively coupled thereto; determining whether processing the request is incomplete; when processing the request is incomplete, determining whether to send an interim message based on a timeout value that the requestor uses, and in response thereto, sending to the requestor the interim message referring to the request, wherein the interim message contains one or more response-related items.
27. The method of Claim 26, wherein the requestor is an AAA client, the request is a RADIUS Access Request message, and the interim message is a RADIUS Access Challenge message that contains the one or more response-related items in a Vendor Specific Attribute in the RADIUS Access Challenge message.
28. The method of Claim 26, wherein the requestor is an EAP supplicant, the request is an EAP Request, and the interim message is an EAP Notification message that contains the one or more response-related items.
29. A method for dynamic timeout comprising machine-implemented steps of: sending a request to an AAA server; receiving an interim message from the AAA server before receiving a response to the request, wherein the interim message contains one or more response-related items; determining whether to change a timeout value based on the one or more response- related items in the interim message; and altering a timeout value based on the one or more response-related items in the interim message to prevent a timeout before the AAA server response is received.
30. The method of Claim 29, wherein the steps are performed by an AAA client, the request is a RADIUS Access Request message, and the interim message is a RADIUS Access Challenge message that contains one or more response-related items in a Vendor Specific Attribute in the RADIUS Access Challenge message.
32
31. The method of Claim 29, wherein the steps are performed by an EAP supplicant, the request is an EAP Request, and the interim message is an EAP Notification message that contains one or more response-related items.
33
PCT/US2004/043237 2003-12-31 2004-12-21 Dynamic timeout in a client-server system WO2005065261A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP20040815331 EP1700230B1 (en) 2003-12-31 2004-12-21 Dynamic timeout in a client-server system
CN200480033530.0A CN1882933B (en) 2003-12-31 2004-12-21 Method and device using for dynamic timeout in a client-server system
AU2004311818A AU2004311818A1 (en) 2003-12-31 2004-12-21 Dynamic timeout in a client-server system
CA2546627A CA2546627C (en) 2003-12-31 2004-12-21 Dynamic timeout in a client-server system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/749,897 2003-12-31
US10/749,897 US7493394B2 (en) 2003-12-31 2003-12-31 Dynamic timeout in a client-server system

Publications (3)

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WO2005065261A2 WO2005065261A2 (en) 2005-07-21
WO2005065261A3 WO2005065261A3 (en) 2006-04-06
WO2005065261B1 true WO2005065261B1 (en) 2006-05-26

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PCT/US2004/043237 WO2005065261A2 (en) 2003-12-31 2004-12-21 Dynamic timeout in a client-server system

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US (1) US7493394B2 (en)
EP (1) EP1700230B1 (en)
CN (2) CN102176715B (en)
AU (1) AU2004311818A1 (en)
CA (1) CA2546627C (en)
WO (1) WO2005065261A2 (en)

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Also Published As

Publication number Publication date
CA2546627C (en) 2013-10-08
EP1700230B1 (en) 2015-05-06
CN102176715A (en) 2011-09-07
US7493394B2 (en) 2009-02-17
CN1882933A (en) 2006-12-20
CA2546627A1 (en) 2005-07-21
CN1882933B (en) 2011-06-15
WO2005065261A2 (en) 2005-07-21
US20050198190A1 (en) 2005-09-08
AU2004311818A1 (en) 2005-07-21
WO2005065261A3 (en) 2006-04-06
EP1700230A4 (en) 2013-05-01
CN102176715B (en) 2015-07-08
EP1700230A2 (en) 2006-09-13

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