The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 11, 2003
Filed:
May. 28, 1999
Jean Walrand, Berkeley, CA (US);
Brian Anthony Fuller, Oakland, CA (US);
Ayman Said Fawaz, Berkeley, CA (US);
Fadi Abourjeily, El Cerrito, CA (US);
Matthew Kenneth Siler, Berkeley, CA (US);
Extreme Networks, Santa Clara, CA (US);
Abstract
In a packet-switched network, a distributed performance measurement system is disclosed. In each node, a node monitor maintains information for each virtual channel passing through the node, including a list of the arrival times of the packets queued for the virtual channel. In addition, each node determines node performance characteristics, which may include throughput, effective rate, delay, loss rate, and occupancy. The network further includes a network monitor, which periodically collects the node performance characteristics from each node and determines performance characteristics for each virtual channel in the network, end-to-end. The network performance characteristics may include throughput, effective rate, delay, loss rate, and occupancy. The results are useful for network operators and users to optimize the network and/or their use of the network.