System and method for directing clients to optimal servers in computer networks
First Claim
1. A method, comprising:
- constructing, at one or more of a collection of Web routers communicatively coupled to one another via a computer network that supports an inter-Web router communication protocol wherein inter-Web router communication messages are exchanged between neighbor Web routers, one or more tables containing client-to-server distance information, the tables constructed by each of the respective Web routers being stored in a computer-readable medium accessible by the corresponding Web router, wherein the term client refers to any information object requesting device, or a group thereof, communicatively coupled to one or more of the Web routers and the term server refers the any information object repository accessible by one or more clients; and
determining, using the client-to-server distance information contained in one or more of the tables, a best server for servicing a request for a particular information object made by one of the clients.
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Accused Products
Abstract
A communication protocol includes one or more messages passed between Web routers over a reliable transmission protocol used for inter-Web router communication. These messages include information that allows the Web routers to dynamically update mappings of client addresses or address ranges to information object repository addresses based on client-to-server distance and server load. The mappings are preferably optimal mappings of the client addresses or address ranges to the information object repository addresses and the messages report updated distances from these information object repository addresses to the client addresses or address ranges. For example, the messages may report, for each updated distance, an associated client address or address range and/or an associated anchor address of a Web router co-located with an information object repository that is the subject of the message.
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Citations
38 Claims
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1. A method, comprising:
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constructing, at one or more of a collection of Web routers communicatively coupled to one another via a computer network that supports an inter-Web router communication protocol wherein inter-Web router communication messages are exchanged between neighbor Web routers, one or more tables containing client-to-server distance information, the tables constructed by each of the respective Web routers being stored in a computer-readable medium accessible by the corresponding Web router, wherein the term client refers to any information object requesting device, or a group thereof, communicatively coupled to one or more of the Web routers and the term server refers the any information object repository accessible by one or more clients; and
determining, using the client-to-server distance information contained in one or more of the tables, a best server for servicing a request for a particular information object made by one of the clients. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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- 14. A communication protocol, comprising one or more messages passed between Web routers over a reliable transmission protocol used for inter-Web router communication, said messages including information which allows said Web routers to dynamically update mappings of client addresses or address ranges to information object repository addresses based on client-to-server distance and server load, wherein the term client refers to any information object requesting device, or a group thereof, communicatively coupled to one or more of the Web routers and the term server refers the any information object repository accessible by one or more clients.
- 19. A method, comprising creating, at a first Web router of a network of Web routers, a network latency map for at least one of the Web routers of the network and a client communicatively coupled to the at least one Web router using internetwork connectivity information received at the first Web router through an inter-domain routing protocol, and disseminating the network latency map from the first Web router to one or more neighbor Web routers of the first Web router through a reliable communication protocol used for inter-Web router communication messages exchanged via the network.
- 32. A method, comprising receiving, at a first Web router, an inter-Web router communication message including an update for a mapping between a client and a second Web router and updating, at the first Web router, a client-to-Web router table to include the mapping between the client and the second Web router if this client-to-Web router mapping specifies a better client-to-Web router distance than is currently maintained in the client-to-Web router table for the client.
Specification