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Chapter 13, Configuring Xgig TraceView
Xgig Analyzer User’s Guide
265
SAS -1, Speed Negotiation Decodes
TraceView uses timing values and other criterion to determine events reported for speed
negotiation using OOB signals. The description of how TraceView determines these events are
shown in Table 18.
Table 18: Speed Negotiation Decodes
Speed Negotiation Decodes
Event Description
Successful G1 speed Neg
This event is set when a SAS device sends and receives ALIGN(1)
primitives during G1 window of the SAS speed negotiation sequence.
Unsuccessful G1 speed Neg
This event is set when a SAS device does not send or receive
ALIGN(1) primitives during G1 window of the speed negotiation
sequence.
Successful G2 speed Neg
This event is set when a SAS device sends and receives ALIGN(1)
primitives during G2 window of the speed negotiation sequence.
Unsuccessful G2 speed Neg
This event is set when a SAS device does not send or receive
ALIGN(1) primitives during G2 window of the speed negotiation
sequence.
Successful G3 speed Neg
This event is set when a SAS device sends and receives ALIGN(1)
primitives during G3 window of the speed negotiation sequence.
Unsuccessful G3 speed Neg
This event is set when a SAS device does not send or receive
ALIGN(1) primitives during G3 window of the speed negotiation
sequence.
Good RCDT 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. This event is set when the measured RCDT value lies within this
range: 492.5 us < RCDT < 507.5 us.
Bad RCDT detected
A SAS device shall send D.C Idle for 750000 OOBI (nominal value =
500 us) during the RCDT phase of a speed negotiation window time.
This event is set when the measured RCDT time <= 492.5 us or
RCDT time >= 507.5 us.
Good SNTT 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. This event is set when the measured SNTT
time lies within this range: 102.5 us < SNTT < 117.5 us
Bad SNTT 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. This event is set when the measured SNTT
time <= 102.5 us or SNTT time >= 117.5 us.
1.5 Gbps speed detected
This event is set during SATA speed negotiation sequence, if a SATA
device sends and receives ALIGN(0) primitives at 1.5 Gbps rate.
3.0 Gbps speed detected
This event is set during SATA speed negotiation sequence, if a SATA
device sends and receives ALIGN(0) primitives at 3.0 Gbps rate.
6.0 Gbps speed detected
This event is set during SATA speed negotiation sequence, if a SATA
device sends and receives ALIGN(0) primitives at 6.0 Gbps rate. This
event applies only to the 6G SAS/SATA blade.
Speed Neg. Failed
This event is set when the SAS speed negotiation sequence or the
SATA speed negotiation sequence fails between two devices trying to
communicate using the SAS/SATA protocol.
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: ......