摘要:
Disclosed herein are methods and apparatus that improve the perceived responsiveness of a multi-server web site or web environment to web requests issued by web browsers. In one aspect, the methods and apparatus operate by determining a likely sequence of web pages to be accessed by users. The methods and apparatus then incorporate information identifying web pages and web page content likely to be requested later in the sequence in web pages responsive to web page requests received earlier in the sequence. In one such method, the URL of a second web is incorporated in a first web page that is expected to be requested before the second web page. A web client receiving the first web page will then issue a DNS request for address information corresponding to the URL of the second web page even if no request has been received for the second web page. Thus, the probability of a DNS system cache miss occurring when a web request for the second web page is actually received by the web client is significantly reduced.
摘要:
This invention provides methods and apparatus for web switching without connection termination while providing content routing functionality. Content-aware web switches terminate incoming TCP connections and inspect the HTTP header to recognize the URL (content) being requested from a web server farm. This invention maps application layer information (URLs) to MPLS labels. This allows a standard MPLS switch to provide web switching functionality without terminating TCP connections. In addition to content routing, this method is applied for client session affinity, server load balancing and service differentiation. This invention also relates to using TCP port numbers instead of MPLS labels to achieve web-switching functionality through the use of a TCP router that translates IP address and port numbers.
摘要:
This invention provides methods and apparatus for executing applications in a distributed manner employing one or more proxy servers and one origin server. The invention allows the applications to be executed primarily at the proxy servers rather than at the origin servers, thereby gaining in scalability and improved user response time. A redirection mechanism is used to direct requests to one of the proxy servers. The proxy server uses caching techniques to bring information records needed for application execution to the proxy servers. The code required for application execution is also obtained from the origin server. The invention discusses applying this technique to three Web-based applications, namely Web-based auctions, generating personalized content for Web-users, and creating advertisements for users accessing a Web page.