Xgig Tuning and Equalization
Chapter 3, Getting Started with Xgig TraceControl
Xgig Analyzer User’s Guide
69
b
The blade is replaced
c
A cable is changed
d
Device is replaced (drive, HBA, expander, etc.)
e
Device transmitter settings are changed (for example, de-emphasis is increased)
2
Upon completion of tuning, if some ports still receive errors, follow the instructions below to
modify the equalization on that particular port and attempt to tune again. If problems persist,
shorten the cables or adjust the emphasis and/or amplitude settings on the transmitter, if
possible.
3
Settings persist across an Xgig chassis reboot or power cycle.
Restore Tuning Defaults
To restore the original factory settings for tuning, press the
Restore
button on the web page. The
restore function will also cause all link rates to return to the original factory settings. The tuning
process will automatically apply both the Tuning results and the latest Equalization settings at the
end of the tuning process.
Equalization
The general rules for choosing the appropriate Equalization setting are listed below. The suggested
settings for Equalization for each port and speed are provided in Table 4. Note that the legend
below Table 4 shows the precise meaning of cable lengths and de-emphasis settings at the input
device.
1
At data rates of 1.5000 Gbps and 3.0000 Gbps the equalization setting can be left to
None
.
2
The Equalization process is performed for the selected ports on a blade. All locked ports are
selected by default, but you can choose to unselect any of those ports. If Equalization is not
required for a particular port at a particular speed, make sure it is set to
None
.
3
At 6.0000 Gbps, you may need to change the equalization setting. Situations where
equalization settings should be changed include when the transmitting device has low or no
emphasis, or where a long cable is used. See Table 4 for a list of the suggested settings for
equalization based on de-emphasis of the signal and the length of the cable.
4
Always perform the Tuning procedure after you have completed Equalization. In the unlikely
event you believe the analyzer is receiving false errors after performing both Equalization and
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Страница 3: ...Viavi Solutions 1 844 GO VIAVI www viavisolutions com Xgig Analyzer Version 7 3 User s Guide ...
Страница 6: ...Xgig Analyzer User s Guide Page iv Version 7 3 December 2015 ...
Страница 7: ...v CONTENTS ...
Страница 15: ...1 PART ONE Using Xgig Analyzer ...
Страница 16: ...PART ONE Using Xgig Analyzer 2 Xgig Analyzer User s Guide ...
Страница 27: ...13 PART TWO Using Xgig TraceControl ...
Страница 28: ...PART TWO Using Xgig TraceControl 14 Xgig Analyzer User s Guide ...
Страница 29: ...15 Chapter 2 About Xgig TraceControl In this chapter Introduction to TraceControl ...
Страница 156: ...Chapter 4 Xgig TraceControl Capture Configuration Segment Capture Options 142 Xgig Analyzer User s Guide ...
Страница 157: ...143 Chapter 5 Template Browser Template Editor In this chapter Template Browser Template Editor ...
Страница 173: ...159 Chapter 6 Xgig TraceControl Hints and Tips In this chapter TraceControl Hints and Tips Keyboard Shortcuts ...
Страница 176: ...Chapter 6 Xgig TraceControl Hints and Tips Keyboard Shortcuts 162 Xgig Analyzer User s Guide ...
Страница 177: ...163 PART THREE Using Xgig Performance Monitor ...
Страница 178: ...PART THREE Using Xgig Performance Monitor 164 Xgig Analyzer User s Guide ...
Страница 179: ...165 Chapter 7 About Xgig Performance Monitor In this chapter Introducing Xgig Performance Monitor ...
Страница 181: ...167 Chapter 8 Getting Started with Xgig Performance Monitor In this chapter Launching Xgig Performance Monitor ...
Страница 192: ...Chapter 9 Xgig Performance Monitor Port Configuration Changing Port Functions 178 Xgig Analyzer User s Guide ...
Страница 223: ...209 PART FOUR Using Xgig TraceView ...
Страница 224: ...PART FOUR Using Xgig TraceView 210 Xgig Analyzer User s Guide ...
Страница 225: ...211 Chapter 11 About Xgig TraceView In this chapter Introducing Xgig TraceView ...
Страница 227: ...213 Chapter 12 Getting Started with Xgig TraceView In this chapter Launching Xgig TraceView Working With Domains ...
Страница 379: ...365 Chapter 15 Xgig TraceView Histograms In this chapter Histogram Overview Histogram Controls ...
Страница 382: ...Chapter 15 Xgig TraceView Histograms Histogram Controls 368 Xgig Analyzer User s Guide ...
Страница 383: ...369 Chapter 16 Xgig TraceView Template Editor In this chapter Using Template Editor ...
Страница 394: ...Chapter 16 Xgig TraceView Template Editor Using Template Editor 380 Xgig Analyzer User s Guide ...
Страница 414: ...Chapter 18 Converting Files from Other Platforms Converting I Tech Files 400 Xgig Analyzer User s Guide ...
Страница 429: ...415 Chapter 20 Xgig Trace View Hints and Tips In this chapter Trace View Hints and Tips Toolbar Keyboard Shortcuts ...
Страница 437: ...423 PART FIVE Using Xgig Expert ...
Страница 438: ...PART FIVE Using Xgig Expert 424 Xgig Analyzer User s Guide ...
Страница 439: ...425 Chapter 21 Xgig Expert In this chapter Key Features of Xgig Expert Opening a Trace Switching to TraceView ...
Страница 442: ...Chapter 21 Xgig Expert 428 Xgig Analyzer User s Guide Figure 194 Xgig Expert Graph View ...
Страница 443: ...429 PART SIX Appendices ...
Страница 444: ...PART SIX Appendices 430 Xgig Analyzer User s Guide ...
Страница 454: ...Appendix C Protocol Display Color Coding 440 Xgig Analyzer User s Guide ...
Страница 461: ...447 INDEX ...
Страница 467: ......