DocumentCode
145651
Title
Direct measurement of ingress and egress latency on 1000Base-T Gigabit Ethernet links
Author
Noseworthy, Bob
Author_Institution
InterOperability Lab., Univ. of New Hampshire, Durham, NH, USA
fYear
2014
fDate
22-26 Sept. 2014
Firstpage
53
Lastpage
58
Abstract
Any error in a physical layer´s asymmetry corrections for egress and ingress latency can result in uncorrectable timing error. These asymmetries increase the timing inaccuracy of any PTP system. A technique to directly measure the ingress and egress latencies of a 1000Base-T Gigabit Ethernet physical layer is presented.
Keywords
local area networks; protocols; synchronisation; Ethernet links; Ethernet physical layer; PTP system; egress latency; ingress latency; physical layer asymmetry corrections; precision time protocol; timing error; Accuracy; Clocks; Delays; Hardware; Physical layer; Transmitters;
fLanguage
English
Publisher
ieee
Conference_Titel
Precision Clock Synchronization for Measurement, Control, and Communication (ISPCS), 2014 IEEE International Symposium on
Conference_Location
Austin, TX
Print_ISBN
978-1-4799-2698-5
Type
conf
DOI
10.1109/ISPCS.2014.6948531
Filename
6948531
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