Keysight Technologies U4301, User Manual

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Keysight U4301 PCIe Gen3 Analyzer User’s Guide 77
Viewing PCIe Gen3 Packets 8
If you make any filtering changes to the Filter/Colorize tool instance, these changes will not be
reflected or applied to the Simple Packet Filter dialog box. However, any changes to the Simple
Packet Filter dialog box will be reflected in the associated Filter/Colorize tool instance.
Filtering Bidirectional Packets Data
If the captured data (for which you want to define filtering setup) is for multiple or bi-directional
signals, the filtering options displayed and defined in the Simple Packet Filter dialog box are
applicable to multiple or bidirectional signals.
When filtering bidirectional or multiple signals data, the Simple Packet Filter creates a separate
filtering clause for each direction and applies the filtering setup that you defined to each of these
clauses. This avoids erroneous filtering results.
For instance, in the first screen below, the filtering setup is defined to hide Skip ordered set and Ack
packets for bidirectional data. In the second screen, the Simple Packet Filter creates two separate
clauses for the Upstream and Downstream data and reflects the filtering setup that you defined in
both these clauses. Finally, in the third screen, the filtered bidirectional data is displayed.