WO2009086373A3 - Mapless global traffic load balancing via anycast - Google Patents

Mapless global traffic load balancing via anycast Download PDF

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Publication number
WO2009086373A3
WO2009086373A3 PCT/US2008/088158 US2008088158W WO2009086373A3 WO 2009086373 A3 WO2009086373 A3 WO 2009086373A3 US 2008088158 W US2008088158 W US 2008088158W WO 2009086373 A3 WO2009086373 A3 WO 2009086373A3
Authority
WO
WIPO (PCT)
Prior art keywords
closest
authoritative dns
web server
network
client
Prior art date
Application number
PCT/US2008/088158
Other languages
French (fr)
Other versions
WO2009086373A2 (en
Inventor
Michael F. Christian
David Apgar
Igor Gashinsky
Leif Hedstrom
Nitzan Katz
Erik Reed
Randy Troll
Original Assignee
Yahoo! Inc.
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 Yahoo! Inc. filed Critical Yahoo! Inc.
Priority to EP08867262.1A priority Critical patent/EP2235885B1/en
Priority to CN200880123275.7A priority patent/CN101911600B/en
Priority to AU2008345200A priority patent/AU2008345200B2/en
Priority to KR1020107016801A priority patent/KR101177203B1/en
Priority to JP2010540864A priority patent/JP5255653B2/en
Publication of WO2009086373A2 publication Critical patent/WO2009086373A2/en
Publication of WO2009086373A3 publication Critical patent/WO2009086373A3/en

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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
    • H04L45/02—Topology update or discovery
    • H04L45/04—Interdomain routing, e.g. hierarchical routing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H04L61/45—Network directories; Name-to-address mapping
    • H04L61/4552—Lookup mechanisms between a plurality of directories; Synchronisation of directories, e.g. metadirectories
    • 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
    • H04L45/12—Shortest path evaluation
    • H04L45/121—Shortest path evaluation by minimising delays
    • 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
    • H04L45/12—Shortest path evaluation
    • H04L45/122—Shortest path evaluation by minimising distances, e.g. by selecting a route with minimum of number of hops
    • 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
    • H04L45/12—Shortest path evaluation
    • H04L45/125—Shortest path evaluation based on throughput or bandwidth
    • 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
    • H04L45/586—Association of routers of virtual routers
    • 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
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H04L61/45—Network directories; Name-to-address mapping
    • H04L61/4505—Network directories; Name-to-address mapping using standardised directories; using standardised directory access protocols
    • H04L61/4511—Network directories; Name-to-address mapping using standardised directories; using standardised directory access protocols using domain name system [DNS]
    • 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
    • H04L67/101—Server selection for load balancing based on network conditions
    • 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
    • H04L67/1021—Server selection for load balancing based on client or server locations
    • 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
    • H04L67/1029—Protocols in which an application is distributed across nodes in the network for accessing one among a plurality of replicated servers using data related to the state of servers by a load balancer

Abstract

Techniques are described for directing connections between clients and the closest web server. Authoritative DNS resolvers of a network are placed at edges of the network. Using anycast, the authoritative DNS resolvers advertise routes of their destination netblock to the Internet. A request from a client to connect to the network is routed, based upon BGP tables, to the closest particular authoritative DNS resolver. Once the request is received, a response is sent to the client with the IP address of the closest web server. The closest web server is determined through in-network health check measurements, with the authoritative DNS resolvers dynamically selecting IP addresses closest to themselves. Routing protocols that directed the packet to the closest authoritative DNS resolver also dictate the route of subsequent traffic to the network. Thus, the closest web server selected by the authoritative DNS resolver is the closest web server to the client.
PCT/US2008/088158 2007-12-28 2008-12-23 Mapless global traffic load balancing via anycast WO2009086373A2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP08867262.1A EP2235885B1 (en) 2007-12-28 2008-12-23 Mapless global traffic load balancing via anycast
CN200880123275.7A CN101911600B (en) 2007-12-28 2008-12-23 Method and system via the Mapless global traffic load balancing of Anycast
AU2008345200A AU2008345200B2 (en) 2007-12-28 2008-12-23 Mapless global traffic load balancing via anycast
KR1020107016801A KR101177203B1 (en) 2007-12-28 2008-12-23 Mapless global traffic load balancing via anycast
JP2010540864A JP5255653B2 (en) 2007-12-28 2008-12-23 Mapless global traffic load balancing via anycast

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/966,989 2007-12-28
US11/966,989 US20090172192A1 (en) 2007-12-28 2007-12-28 Mapless Global Traffic Load Balancing Via Anycast

Publications (2)

Publication Number Publication Date
WO2009086373A2 WO2009086373A2 (en) 2009-07-09
WO2009086373A3 true WO2009086373A3 (en) 2009-09-11

Family

ID=40799949

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2008/088158 WO2009086373A2 (en) 2007-12-28 2008-12-23 Mapless global traffic load balancing via anycast

Country Status (8)

Country Link
US (2) US20090172192A1 (en)
EP (1) EP2235885B1 (en)
JP (1) JP5255653B2 (en)
KR (1) KR101177203B1 (en)
CN (1) CN101911600B (en)
AU (1) AU2008345200B2 (en)
TW (1) TWI398149B (en)
WO (1) WO2009086373A2 (en)

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Also Published As

Publication number Publication date
EP2235885B1 (en) 2018-02-07
KR20100106540A (en) 2010-10-01
WO2009086373A2 (en) 2009-07-09
TW200941988A (en) 2009-10-01
US20100235441A1 (en) 2010-09-16
JP2011509029A (en) 2011-03-17
KR101177203B1 (en) 2012-08-24
AU2008345200B2 (en) 2012-04-05
US20090172192A1 (en) 2009-07-02
EP2235885A4 (en) 2013-05-29
TWI398149B (en) 2013-06-01
AU2008345200A1 (en) 2009-07-09
EP2235885A2 (en) 2010-10-06
CN101911600B (en) 2016-06-29
CN101911600A (en) 2010-12-08
US8073953B2 (en) 2011-12-06
JP5255653B2 (en) 2013-08-07

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