JDS Uniphase HST-3000 - Page 9

Contents
HST-3000 Ethernet Testing User’s Guide
vii
Chapter 2 Running Cable Diagnostics 41
About cable diagnostics. . . . . . . . . . . . . . . . . . . . . . . . . 42
Running cable diagnostics. . . . . . . . . . . . . . . . . . . . . . . 42
Viewing cable measurements. . . . . . . . . . . . . . . . . . . . . 43
Chapter 3 Ethernet Testing 45
About Ethernet testing . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Selecting a layer 2 test . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Discovering another JDSU test instrument . . . . . . . . . 47
Initializing the link for Ethernet testing . . . . . . . . . . . . . 47
Configuring layer 2 Ethernet tests. . . . . . . . . . . . . . . . . 51
Specifying frame characteristics . . . . . . . . . . . . . . . . . 51
Configuring the traffic load . . . . . . . . . . . . . . . . . . . . . 56
Transmitting a constant load. . . . . . . . . . . . . . . . . 57
Transmitting a bursty load . . . . . . . . . . . . . . . . . . 59
Transmitting a ramped load . . . . . . . . . . . . . . . . . 61
Transmitting a flooded load . . . . . . . . . . . . . . . . . 65
Filtering received traffic using layer 2 criteria . . . . . . . 65
Transmitting layer 2 traffic . . . . . . . . . . . . . . . . . . . . . . . 71
Using J-Proof to verify layer 2 transparency . . . . . . . . 71
Observing J-Proof (transparency) results . . . . . . . . . . 78
BER testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Measuring service disruption time . . . . . . . . . . . . . . . . 80
Inserting errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Inserting pause frames . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Configuring and viewing pause capabilities on Electrical
Ethernet networks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Configuring pause capabilities . . . . . . . . . . . . . . . . . . 85
Viewing pause capabilities . . . . . . . . . . . . . . . . . . . . . 85
Transmitting patterns . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Loopback testing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Using the Local Loopback feature. . . . . . . . . . . . . . . . 87
Using the automatic loopback feature. . . . . . . . . . . . . 89
Monitoring Ethernet traffic . . . . . . . . . . . . . . . . . . . . . . . 93