WO2006073804A3 - Data traffic load balancing based on application layer messages - Google Patents

Data traffic load balancing based on application layer messages Download PDF

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Publication number
WO2006073804A3
WO2006073804A3 PCT/US2005/046149 US2005046149W WO2006073804A3 WO 2006073804 A3 WO2006073804 A3 WO 2006073804A3 US 2005046149 W US2005046149 W US 2005046149W WO 2006073804 A3 WO2006073804 A3 WO 2006073804A3
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WO
WIPO (PCT)
Prior art keywords
network element
server
application layer
message
load
Prior art date
Application number
PCT/US2005/046149
Other languages
French (fr)
Other versions
WO2006073804A2 (en
Inventor
Hari Kathi
Subramanian Srinivasan
Pravin Singhal
Original Assignee
Cisco Tech Inc
Hari Kathi
Subramanian Srinivasan
Pravin Singhal
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, Hari Kathi, Subramanian Srinivasan, Pravin Singhal filed Critical Cisco Tech Inc
Priority to CN200580045932.7A priority Critical patent/CN101124565B/en
Priority to EP05854804.1A priority patent/EP1839176B1/en
Publication of WO2006073804A2 publication Critical patent/WO2006073804A2/en
Publication of WO2006073804A3 publication Critical patent/WO2006073804A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/58—Association of routers
    • H04L45/583—Stackable routers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/38—Flow based routing
    • 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
    • H04L67/01—Protocols
    • H04L67/10—Protocols in which an application is distributed across nodes in the network
    • H04L67/1001—Protocols in which an application is distributed across nodes in the network for accessing one among a plurality of replicated servers
    • 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
    • H04L67/01—Protocols
    • H04L67/10—Protocols in which an application is distributed across nodes in the network
    • H04L67/1001—Protocols in which an application is distributed across nodes in the network for accessing one among a plurality of replicated servers
    • H04L67/1004—Server selection for load balancing
    • H04L67/1008—Server selection for load balancing based on parameters of servers, e.g. available memory or workload
    • 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
    • H04L67/01—Protocols
    • H04L67/10—Protocols in which an application is distributed across nodes in the network
    • H04L67/1001—Protocols in which an application is distributed across nodes in the network for accessing one among a plurality of replicated servers
    • H04L67/1004—Server selection for load balancing
    • H04L67/1017—Server selection for load balancing based on a round robin mechanism
    • 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
    • H04L67/50—Network services
    • H04L67/60—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
    • H04L67/63—Routing a service request depending on the request content or context

Abstract

A method is disclosed for application layer message-based load balancing. According to one aspect, when a network element receives one or more data packets that collectively contain an application layer message, the network element determines a message classification to which the application layer message belongs. Using a load-balancing algorithm that is mapped to the message classification, the network element selects a server from among a plurality of servers, and sends the message toward that server. According to one 'adaptive' load-balancing algorithm, the network element selects the server based on multiple servers' average historical response times and average outstanding request wait times. The network element continuously maintains these statistics for each server toward which the network element has sent requests. The network element tracks response times by recording how much time passes between the sending of a request to a server and the receiving of a corresponding response from that server.
PCT/US2005/046149 2005-01-06 2005-12-15 Data traffic load balancing based on application layer messages WO2006073804A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN200580045932.7A CN101124565B (en) 2005-01-06 2005-12-15 Data traffic load balancing based on application layer messages
EP05854804.1A EP1839176B1 (en) 2005-01-06 2005-12-15 Data traffic load balancing based on application layer messages

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/031,184 2005-01-06
US11/031,184 US20060155862A1 (en) 2005-01-06 2005-01-06 Data traffic load balancing based on application layer messages

Publications (2)

Publication Number Publication Date
WO2006073804A2 WO2006073804A2 (en) 2006-07-13
WO2006073804A3 true WO2006073804A3 (en) 2007-09-13

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2005/046149 WO2006073804A2 (en) 2005-01-06 2005-12-15 Data traffic load balancing based on application layer messages

Country Status (4)

Country Link
US (1) US20060155862A1 (en)
EP (1) EP1839176B1 (en)
CN (1) CN101124565B (en)
WO (1) WO2006073804A2 (en)

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