3.TestsandDiagnostics 
SatelliteL550/SatelliteL555/SatelliteL557/SatelliteProL550SeriesT&D22
LineSpeed–1000Mbpsor100Mbpsor10Mbps.
BusID–it’s“14”.
TheLANtestincludesthreesubtestsofthe:
1.Speed1000
2.Speed100
3.Speed10
Thesubtestsrunautomatically.
Thescreenshoulddisplayasbelow,indicatingwhetherthesubtestspassorfailwhenfinished.