Pcie Tuning Wizard - Viavi Xgig User Manual

Chapter 3, Getting Started with Xgig TraceControl
Figure 24: Chassis Shutdown, System Security Dialog
You must wait more than one minute before you can remove power from the chassis once the shut
down message is sent from TraceControl to the chassis.

PCIe Tuning Wizard

TraceControl provides several Interposer Equalizations to suit different hosts and devices. When
your host/device cannot reach the Gen3 speed, or when there are errors on the link, you can try
each Interposer Equalization in the Lane Control panel to find the best one for your system. It is
important to reboot the DUT every time you change any Interposer Equalization because the
equalization affects both the thru path between the host and the target, and the tap path towards the
Xgig Analyzer. Changing the equalization on the thru path changes the link characteristics and the
Host/Device must be retrained in the Gen3 LTSSM Recovery Equalization phase, which happens
during reboots.
Figure 25: Interposer Equalization List
TraceControl has a Tuning Wizard which can find the best equalization from the list or beyond by
trying additional settings. Once it finds good settings, you can save them to a new preset that will
appear in Lane Control's Interposer Equalization list for a future use.
To launch the tuning wizard, click on TraceControl's Tuning Wizard toolbar button and then click
Start Auto Tuning
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PCIe Tuning Wizard
Xgig Analyzer User's Guide