Viavi Xgig User Manual page 131

Capture and Trigger Setup
Reduce error data capture during loss of sync
This option is for 16G FC traffic. This option greatly reduces the number of errored primitives
captured after a loss-of-sync. It applies to 16G FC only and it is selected by default.
This option is useful when you are capturing the training sequence or during speed negotiation. It
is also useful when you physically pull the fiber to create a loss-of-sync event and reconnect it to
re-initialize the link.
When this option is enabled, the Xgig hardware waits for 40000 error-free consecutive ordered
sets (Idle, NOS, OLS, LR or LRR) or 2 consecutive error-free Training Frame markers to get out
of the loss-of-sync state. As a result, it reduces the number of errored events captured after a
loss-of-sync.
When this option is disabled, the Xgig hardware synchronizes according to the standard state
machine.
Note that this option only affects the capturing of errors after the loss-of-sync occurred. It does not
affect the errors captured while going into the loss-of-sync state. If you physically pull the fiber to
create the loss-of-sync, it is recommended to start the capture after you pulled the fiber and then
reconnect the fiber. Then, you will only capture errors after the loss-of-sync state where this option
is in effect to reduce the errors.
SAS/SATA Exclude Options
The options in this section specify if certain SAS/SATA primitives and errors should always be left
out of the capture, no matter what is set in the Capture Filter Editor. Force capture Code Violation,
for example, means that even if a Frame is set to not be captured, if it has a code violation, an
event will be shown in TraceView to show the error. If you un-check these boxes, it does not
necessarily mean the primitives are captured.
•
Exclude SATA_HOLD, SATA_HOLDA or SATA_R_IP
All SATA_HOLD, SATA_HOLDA or SATA_R_IP primitive sequences are filtered out from
the capture.
Note: Captures of SATA_HOLD and SATA_HOLDA primitives are not supported in Digital
Retime mode. Use Analog Passthrough mode if you want to capture these primitives.
•
Exclude ALIGNs/NOTIFYs outside OOB and speed negotiation
All ALIGNs/NOTIFYs that are outside OOB and speed negotiation are filtered out from the
capture.
• Exclude SAS Scrambled Idle Dwords and SATA_SYNC
All SAS Scrambled Idle Dwords and SATA_SYNC primitive sequences are filtered out from
the capture.
Support Proprietary 16G ISL Traffic
This option is for 16G FC traffic. Some Proprietary 16G FC inter-switch links make use of ARB
ordered sets and nonstandard 64/66B Transmission Words. This option enables the support of one
type of proprietary ISL traffic. It is ON by default.
Xgig Analyzer User's Guide
Chapter 4, Xgig TraceControl Capture Configuration
117