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:
Oct. 23, 2018
Filed:
Aug. 26, 2015
Barefoot Networks, Inc., Santa Clara, CA (US);
BAREFOOT NETWORKS, INC., Santa Clara, CA (US);
Abstract
The invention provides a packet loss detection system that in near-real time detects packet loss and reports the identities of the lost packets. The identities of the lost packets are based on a set of packet-specific information that includes five-tuple flow information of the packet and other unique packet identifiers. A set of meters are placed at various vantage points in the network, each meter generates digests summarizing all the traffic passing through itself. The digests are exported to a collector/analyzer, which decodes the digests and performs an analysis to detect packet losses and to determine the lost packets' identities. The collector compares between the traffic digests generated by all the meters surrounding the segment. Mismatches among the digests indicate packet losses. The collector restores the identifiers of the lost packets by further decoding the mismatches between the digests.