Using the Traffic Summary Pane
Chapter 14, Using the Secondary Panes in Xgig TraceView
Xgig Analyzer User’s Guide
345
Traffic Summary SAS/SATA Speed Negotiation Counters
The following table describes the SAS/SATA Speed Negotiation counters within the Traffic
Summary pane of TraceView. TraceView uses timing values and other criterion to determine
events reported for speed negotiation using OOB signals.
Table 32: Traffic Summary SAS/SATA Speed Negotiation Counters
Speed Negotiation Counters
Description
Valid Speed Negotiation
Valid SNW-1
This counter increments when the analyzer receives ALIGN(1)
primitives from both ends of a SAS link at 1.5 Gbps during SNW-1
window of the SAS speed negotiation sequence.
Valid SNW-2
This counter increments when the analyzer receives ALIGN(1)
primitives from both ends of a SAS link at 3.0 Gbps during SNW-2
window of the SAS speed negotiation sequence.
Valid SNW-3
This counter increments when the analyzer receives one or more
SAS-2 SNW-3 phy capabilities bits transmitted as COMWAKE OOB
signals during SNW-3 window of the SAS speed negotiation
sequence.
Valid Final-SNW (1.5 Gbps)
This counter increments when a Final-SNW event at 1.5 Gbps is
detected. A valid Final-SNW event is set when the analyzer receives
ALIGN(1) primitives from both ends of a SAS link at 1.5 Gbps rate
during Final-SNW window of the SAS speed negotiation sequence.
Valid Final-SNW (3.0 Gbps)
This counter increments when a Final-SNW event at 3.0Gbps is
detected. A valid Final-SNW event is set when the analyzer receives
ALIGN(1) primitives from both ends of a SAS link at 3.0 Gbps rate
during Final-SNW window of the SAS speed negotiation sequence.
Valid Train SNW
This counter increments when any Valid Train SNW event is detected,
regardless of the speed or parameters set for the speed negotiation.
ATT (Actual Training time) within
spec
This counter increments when an ATT within spec event is detected.
An ATT within spec event is set when the measured value of ATT is
within TLT (Training Lock Time) which is defined to be 28497920 OOBI
or ~ 18.998613 ms.
RCDT (Rate Change Delay Time)
within spec
This counter increments when an RDCT within spec event is detected.
A SAS device shall send D.C Idle for 750000 OOBI (nominal value =
500 us) during the RCDT phase of a SAS speed negotiation window
time. An RDCT within spec event is set when the measured RCDT
value lies within this range: 492.5 us < RCDT < 507.5 us.
SNTT (Speed Negotiation
Transmit time) within spec
This counter increments when an SNTT within spec event is detected.
A SAS device shall send ALIGN(0) or ALIGN(1) for 163840 OOBI
(nominal value = 109.2 us) during the SNTT phase of a SAS speed
negotiation window time. An SNTT within spec event is set when the
measured SNTT time lies within this range: 102.5 us < SNTT < 117.5
us
SATA 1.5 Gbps speed detected
This counter increments when ALIGN(0) primitives are detected from
host and drive at 1.5 Gbps on a SATA link.
SATA 3.0 Gbps speed detected
This counter increments when ALIGN(0) primitives are detected from
host and drive at 3.0 Gbps on a SATA link.
SATA 6.0 Gbps speed detected
This counter increments when ALIGN(0) primitives are detected from
host and drive at 6.0 Gbps on a SATA link.
Summary of Contents for Xgig
Page 1: ...Xgig Analyzer Version 7 3 User s Guide ...
Page 2: ......
Page 3: ...Viavi Solutions 1 844 GO VIAVI www viavisolutions com Xgig Analyzer Version 7 3 User s Guide ...
Page 6: ...Xgig Analyzer User s Guide Page iv Version 7 3 December 2015 ...
Page 7: ...v CONTENTS ...
Page 15: ...1 PART ONE Using Xgig Analyzer ...
Page 16: ...PART ONE Using Xgig Analyzer 2 Xgig Analyzer User s Guide ...
Page 27: ...13 PART TWO Using Xgig TraceControl ...
Page 28: ...PART TWO Using Xgig TraceControl 14 Xgig Analyzer User s Guide ...
Page 29: ...15 Chapter 2 About Xgig TraceControl In this chapter Introduction to TraceControl ...
Page 176: ...Chapter 6 Xgig TraceControl Hints and Tips Keyboard Shortcuts 162 Xgig Analyzer User s Guide ...
Page 177: ...163 PART THREE Using Xgig Performance Monitor ...
Page 178: ...PART THREE Using Xgig Performance Monitor 164 Xgig Analyzer User s Guide ...
Page 223: ...209 PART FOUR Using Xgig TraceView ...
Page 224: ...PART FOUR Using Xgig TraceView 210 Xgig Analyzer User s Guide ...
Page 225: ...211 Chapter 11 About Xgig TraceView In this chapter Introducing Xgig TraceView ...
Page 382: ...Chapter 15 Xgig TraceView Histograms Histogram Controls 368 Xgig Analyzer User s Guide ...
Page 383: ...369 Chapter 16 Xgig TraceView Template Editor In this chapter Using Template Editor ...
Page 437: ...423 PART FIVE Using Xgig Expert ...
Page 438: ...PART FIVE Using Xgig Expert 424 Xgig Analyzer User s Guide ...
Page 442: ...Chapter 21 Xgig Expert 428 Xgig Analyzer User s Guide Figure 194 Xgig Expert Graph View ...
Page 443: ...429 PART SIX Appendices ...
Page 444: ...PART SIX Appendices 430 Xgig Analyzer User s Guide ...
Page 454: ...Appendix C Protocol Display Color Coding 440 Xgig Analyzer User s Guide ...
Page 461: ...447 INDEX ...
Page 467: ......