Invention Grant
- Patent Title: Systems, methods and computer-readable media for external non-intrusive packet delay measurement
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Application No.: US16380484Application Date: 2019-04-10
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Publication No.: US11025519B2Publication Date: 2021-06-01
- Inventor: Yaron Koral , Tuan Duong , Steven A. Monetti , Tzuu-Yi Wang , Simon Tse , Shir Landau Feibish , Jennifer Rexford , Xiaoqi Chen
- Applicant: AT&T Intellectual Property I, L.P.
- Applicant Address: US GA Atlanta
- Assignee: AT&T Intellectual Property I, L.P.
- Current Assignee: AT&T Intellectual Property I, L.P.
- Current Assignee Address: US GA Atlanta
- Agency: BakerHostetler
- Main IPC: H04L12/26
- IPC: H04L12/26

Abstract:
Methods, systems, and computer-readable media for measuring packet delays are provided. An input port of a network device is tapped to duplicate an input packet stream having a first packet. An output port of the network device is tapped to duplicate an output packet stream including the first packet. The duplicated input packet stream and the duplicated output packet stream is transmitted to a programmable device. The first packet in the first input packet stream is matched to the first packet in the first output packet stream. An arrival time and a departure time for the first packet is measured. The difference between the departure time of the first packet and the arrival time of the first packet is determined and the value is reported to an external collector.
Public/Granted literature
- US20200328956A1 SYSTEMS, METHODS AND COMPUTER-READABLE MEDIA FOR EXTERNAL NON-INTRUSIVE PACKET DELAY MEASUREMENT Public/Granted day:2020-10-15
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