Systems and methods for robust, real-time measurement of network performance
First Claim
1. A method of measuring a performance of a route in an internetwork, the route coupling an internetwork server to a terminal on the internetwork, the method comprising:
- at a frequently trafficked portal on the internetwork, detecting a request for a web page from the terminal, wherein the web page is at least partially stored at the frequently trafficked portal;
in response to the request for the web page, downloading the web page to the terminal via the internetwork;
from the web page, retrieving a Uniform Resource Locator (URL) for a web object referenced in the web page;
resolving the URL to the internetwork server;
detecting a request for the web object from the terminal at the internetwork server;
in response to the request for the web object, sending the web object from the internetwork server to the terminal; and
concurrent with sending the web object, measuring a Round Trip Time (RTT) of one or more packets sent between the internetwork server and the terminal.
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Accused Products
Abstract
Methods and apparatuses for obtaining delay, jitter, and loss statistics of a path between server and an end user coupled via an internetwork are described. The server may comprise a web server in communication with the end user via the Internet. Statistics are obtained by analyzing the details of a TCP connection underlying an HTML transaction. Robust measurements of jitter, delay, and loss are ensured by maximizing traffic between the web server and the surfer in order to generate a robust sample of TCP connections. Content may be updated with one or more html link(s). This existing content may reside on a highly trafficked portal, such as a web portal, and may be encoded in a markup language, such as Hyper Text Markup Language (HTML). The Uniform Resource Locators (URLs) corresponding to the one or more links resolve to the server from which the statistics are to be measured. The actual content supplied by the server may be minimized, in order to preserve bandwidth.
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Citations
17 Claims
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1. A method of measuring a performance of a route in an internetwork, the route coupling an internetwork server to a terminal on the internetwork, the method comprising:
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at a frequently trafficked portal on the internetwork, detecting a request for a web page from the terminal, wherein the web page is at least partially stored at the frequently trafficked portal;
in response to the request for the web page, downloading the web page to the terminal via the internetwork;
from the web page, retrieving a Uniform Resource Locator (URL) for a web object referenced in the web page;
resolving the URL to the internetwork server;
detecting a request for the web object from the terminal at the internetwork server;
in response to the request for the web object, sending the web object from the internetwork server to the terminal; and
concurrent with sending the web object, measuring a Round Trip Time (RTT) of one or more packets sent between the internetwork server and the terminal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of measuring performance in a network, the method comprising:
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between a first point in the network and a second point in the network, wherein the first point is identified by a first address and the second point is identified by a second address, generating one or more pairs of packets, each of the one or more pairs of packets including;
a packet sent from the first point to the second point; and
a packet received at the second point from the first point, wherein the received packet comprises a response to the sent packet;
measuring a plurality of durations between the sent packets and the received packets for the one or more pairs; and
calculating, at least from the plurality of durations, parameters of at least part of the network, wherein the parameters comprise per-group delay, jitter, and loss. - View Dependent Claims (10, 11, 12, 13, 15, 16)
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14. A system for measuring performance of an internetwork, the system comprising:
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a frequently trafficked web portal in the internetwork;
a web page at least partially stored on the frequently trafficked web portal, the at least partially stored web portal including a Uniform Resource Locator (URL) for a web object, such that the web object is not stored on the frequently trafficked web portal;
a Domain Name System (DNS) server on the internetwork;
the DNS server including a reference which maps the URL for the web object to an Internet Protocol address for an internetwork on the internetwork;
a web browser coupled to the internetwork, wherein the web browser sends a download request for the web object to the server; and
a measurement process executed on the server, such that in response to the download request, the measurement process measures one or more Round Trip Times between the server and the web browser.
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17. A method of measuring a performance of a route in an internetwork, the route coupling an internetwork server to a terminal on the internetwork, the method comprising:
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at a frequently trafficked portal on the internetwork, detecting a request for a web page from the terminal, wherein the web page is at least partially stored at the frequently trafficked portal;
from the web page, retrieving a Uniform Resource Locator (URL) for a web object referenced in the web page;
resolving the URL to the internetwork server;
detecting a request for the web object from the terminal at the internetwork server; and
in response to the request for the web object, measuring a Round Trip Time (RTT) of one or more packets sent between the internetwork server and the terminal.
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Specification