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Sifos Technologies PhyView PVA-3000 Reference Manual

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PVA-3000 Reference Manual
Sifos Technologies
PhyView Analyzer
®
PVA-3000, PVA-3002
Reference Manual
Version 5.1
December 2, 2019
Copyright © 2013-2019 Sifos Technologies
December 2, 2019
Sifos Technologies
Page 1

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  • Page 1 PVA-3000 Reference Manual Sifos Technologies PhyView Analyzer ® PVA-3000, PVA-3002 Reference Manual Version 5.1 December 2, 2019 Copyright © 2013-2019 Sifos Technologies December 2, 2019 Sifos Technologies Page 1...
  • Page 2 (978) 640-4990 FAX Disclaimer The information contained in this manual is the property of Sifos Technologies, Inc., and is furnished for use by recipient only for the purpose stated in the Software License Agreement accompanying the user documentation. Except as permitted by such License Agreement, no part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, without the prior written permission of Sifos Technologies, Inc.

  • Page 3: Table Of Contents

    Directory and File Organization – Linux and Unix ................... 34 2.3.6. 2.3.7. Tcl/Tk Requirements & Resources ......................34 2.4. (Section Omitted) ............................35 2.5. Network Latency, Host Software, and Host Firewall Considerations ............35 2.6. PVA External Channel Impairment Modules ..................... 35 December 2, 2019 Sifos Technologies Page 3...
  • Page 4 Example 1: Force a DUT on Slot 1, Port 1 to 100Base-T, MDI-X, Full Duplex, with Line Impaired Rx ... 62 3.16.2. Example 2: Assess Link Stability 1000BaseT DUT in Slave mode, with Line and Offset Impairments ... 63 December 2, 2019 Sifos Technologies Page 4...
  • Page 5 100BaseTx Transmission Test ......................111 5.3.2. 1000BaseT Transmission Test ......................112 5.4. Receiver Tests ............................112 5.4.1. 10BaseT Receiver Test ......................... 113 5.4.2. 100Base-TX Receiver Test ........................113 5.4.3. 1000BaseT Receiver Test ........................114 December 2, 2019 Sifos Technologies Page 5...
  • Page 6 6.4. pva_veriphy Automated Test Application for the PhyView Analyzer ............ 131 6.4.1. pva_veriphy Tests ..........................132 6.4.2. pva_veriphy Reporting ........................... 133 6.4.3. Managing Test Limits and Link Delay Tolerances in pva_veriphy ............134 December 2, 2019 Sifos Technologies Page 6...

  • Page 7: The Phyview Analyzer & Ethernet Phy Testing

    The PVA-3002 consists of a single-slot PSA-3002 controller packaged with a single, 2-port PVA-3102 test blade. From a features and control point of view, the PVA-3002 is identical to a PVA-3000 with a single PVA- 3102 test blade in test slot #1. December 2, 2019 Sifos Technologies Page 7...

  • Page 8: Ethernet Twisted Pair Phy's: A Brief History

    Coupling that with higher density coding schemes, data bandwidth increased an order of magnitude with very little spectral impact. On the cabling side, Category 5e was introduced to slightly December 2, 2019 Sifos Technologies Page 8...

  • Page 9: Ethernet Twisted Pair Phy Specification Summary

    For example, a link that starts out at 1000BaseT may eventually drop down to 100BaseT to overcome those impairments. December 2, 2019 Sifos Technologies Page 9...

  • Page 10: Traditional Phy Conformance Testing

    1000BaseT then complicated this further since all 4 pairs possess transmitters meaning that more elaborate fixturing was required with more manual connection interventions to Figure 1.2 Ethernet PHY Test Fixtures perform measurements across the 4 pairs(see Figure 1.2). This December 2, 2019 Sifos Technologies Page...

  • Page 11: Packet Testing: Pros And Cons

    Bit Error Rate (BER) measurements to various physical Figure 1.4 BER versus Physical Impairment impairments or defects. From this figure, it is apparent that bit errors typically do not appear until the degree of December 2, 2019 Sifos Technologies Page...

  • Page 12: The Phyview Analyzer Metrology

    Connection Mode Auto, MDI, MDI-X Forces specified or link determined connection mode Duplex Auto, Half, Full Forces specified or auto-negotiated duplex mode Gigabit Mode Auto, Master, Slave Forces specified or auto-negotiated 1000BaseT gigabit timing mode December 2, 2019 Sifos Technologies Page...

  • Page 13: Transmitter Verification Overview

    Many impairments that distort a transmitter signal in the time domain will produce a different type of distortion in the frequency domain. Figure 1.7 diagrams a number of important distortion types and the expected PSD response to those impairments. These impairments include: December 2, 2019 Sifos Technologies Page...
  • Page 14 Fully automated calibrations requiring no external calibration standards simplify the task of periodic calibration. PSD can be readily used to measure insertion loss across link components including cabling, connectors, and patch panels. PSD is also useful for assessing signal integrity at any service point outlet. December 2, 2019 Sifos Technologies Page...

  • Page 15: Signal-To-Noise Ratio

    This fact should be considered when creating impaired receiver tests as will be discussed elsewhere in this manual. It also means that SNR measurements can be artificially reduced simply by adding fixed loss in line with a transmitter-under-test. December 2, 2019 Sifos Technologies Page...

  • Page 16: Transmit Level Measurement

    It is available only in 1000BaseT because that technology was designed to enable signal power measurements that are correlated only to a specific transmission direction on a specific pair. In other words, the Bulk Return Loss measurement takes advantage of features that are unique to 1000BaseT. December 2, 2019 Sifos Technologies Page...

  • Page 17: Bulk Pair-Pair Crosstalk

    TIA/EIA 568 (ISO/IEC 11801) qualified connectors that are in turn subject to various crosstalk specifications. IEEE 802.3 also specifies expected near-end crosstalk (see Figure 1.14) performance of physical links that connect Ethernet ports with the formula: NEXT < 27.1 – 16.8*LOG( MHz / 100 ) dB December 2, 2019 Sifos Technologies Page...

  • Page 18: Pair Designators In The Phyview Analyzer

    Spare Pair for 10/100BaseT Orange & Orange/White & MDI Transmit / MDI-X Receive Pair for 10/100BaseT Green & Green/White & MDI-X Transmit / MDI Receive Pair for 10/100BaseT Brown & Brown/White & Spare Pair for 10/100BaseT December 2, 2019 Sifos Technologies Page...

  • Page 19: Receiver Verification Overview

    (or Test Port) to discern the receive condition of the other link partner. This means that Link Stability generally will not correlate linearly to a hypothetical port-under-test bit error rate or packet error rate. December 2, 2019 Sifos Technologies Page...

  • Page 20: Receiver Testing With Impairments

    (see Section 1.2.5), statistically, it takes many packet errors to assess BER. Impairing the receiver-under-test will drive up the BER, increase packet drops and packet error, and assess that receiver under typical and worst case stresses. December 2, 2019 Sifos Technologies Page...

  • Page 21: Reference Manual Overview

    Section 4 will review PowerShell PSA, the live command line control and script automation environment for the PhyView Analyzer and for all PowerSync Analyzer instruments from Sifos Technologies. Section 5 will cover the fully automated PHY Performance Test Suite for 10/100/1000BaseT Ethernet port testing.
  • Page 22 PVA-3000 Reference Manual December 2, 2019 Sifos Technologies Page...

  • Page 23: Phyview Analyzer Overview

    TEST interface is connected to the THRU interface, all of the PVA test port measurement capabilities become unavailable while certain impairments resources remain fully available as “in-line” resources to external test equipment (see Figure 2.2). Figure 2.2 PVA THRU Interface December 2, 2019 Sifos Technologies Page...

  • Page 24: Test Port Resources

     Link Partner Capabilities Through a cooperative arrangement between the TEST PHY device supplier and Sifos Technologies, the PVA is able to access and manipulate numerous proprietary features within these devices in order to access, configure, and process DSP data streams. These raw data sources are then post-processed using Sifos proprietary methods within the Micro- Controller and PVA software into the meters introduced earlier in Section 1.3.

  • Page 25: Pva-3000 Meters: Overview

    So unlike Link Monitor and Tx Level, both of these meters may need to re- configure a link prior to completing a measurement. Both meters will notify of a failure to establish the specified link rate. December 2, 2019 Sifos Technologies Page...

  • Page 26: Pva-3000 Meters: Configuration Maintenance

    MEASURE + Monitor sampling on multiple test ports could start End of Period End of Period coincident with a forced re-link on all of those ports in order Figure 2.3 Triggered Meter State Machine December 2, 2019 Sifos Technologies Page...

  • Page 27: Pva-3000 Meter Calibrations

    PVA-3000 with 24 test ports to be calibrated in two steps. Sifos Technologies does not offer any strict recommendations regarding calibration frequency. Instruments that are parked in a laboratory and always mated to the same test cables should maintain calibration for weeks or months.

  • Page 28: Pva Line Loss And Mismatch Impairments

    The noise source is designed to approximately model the 100BaseTx power spectrum so that upper frequencies are not disproportionately impaired, thus implementing the recommendation of IEEE 802.3 clause 40.6.1.3.4. Figure 2.6 depicts the spectral shaping of the Alien Crosstalk impairment. December 2, 2019 Sifos Technologies Page...

  • Page 29: Pva Timing Offset And Random Jitter Impairment

    PHY’s to acquire and lock to incoming receive signals. For this reason, jitter and offset may have little or no effect on signal-to-noise ratio inside the PHY receiver until the magnitude of impairment exceeds some December 2, 2019 Sifos Technologies Page...

  • Page 30: Pva Tx Level And Tx Slew Impairment

    (see Section 1.1.4), the host-based software will also be referred to as “PSA Software” within this manual. PowerSync Analyzer PowerSync Analyzer PhyView Analyzer software is primarily designed for Figure 2.8 PVA Host Software Architecture the Microsoft Windows operating environment. A December 2, 2019 Sifos Technologies Page...

  • Page 31: Pva Interactive

    PVA-3000 chassis (or PVA-3002 instrument). It can be activated at any time using a chassis-specific key code supplied by Sifos Technologies. The pva_veriphy automated test application performs less comprehensive physical layer qualification testing on one to six 10/100/1000Base-T ports at a time with test times as low as 80 seconds per port tested.
  • Page 32 PVA software but is reserved for future use. POLARITY: Specifies auto-MDI capability of a device-under-test. Generally, this would be BOTH (or “auto”), “MDI”, or “MDI-X”. This parameter is not currently used by PVA software but is reserved for future use. December 2, 2019 Sifos Technologies Page...

  • Page 33: Directory And File Organization - Microsoft Windows

    PSA/PSL/PVA sample scripts at installation. It also includes the pva_veriphy.tbc application for automated testing. Version information concerning individual PowerSync Analyzer software libraries is available from PSA Interactive under the [Help] menu as well as from PowerShell PSA using the pva_version command. December 2, 2019 Sifos Technologies Page...

  • Page 34: Directory And File Organization - Linux And Unix

    8.4.5 is found, PSA installation software will install version 8.4.20 Tcl. (Note: This does not apply to Linux systems where the user is responsible for pre-installing a satisfactory version of Tcl/Tk.) December 2, 2019 Sifos Technologies Page...

  • Page 35: Section Omitted)

    2.6. PVA External Channel Impairment Modules Sifos Technologies offers several channel impairment modules that may be used to validate PhyView measurements and to create certain line conditions between two 10/100/1000BaseT link partners. These devices can be useful in assessing calibration integrity, crosschecking measurements, and creating specialized measurement conditions.
  • Page 36 PHY Performance Test Suite. This 2-channel device forces a fixed unbalance current of ≈18mA on the PSE magnetics while powered for PoE. It then allows a PSA-3000 (or PSL-3000) PoE test blade (or PSA-3002 Compact PSA) to modulate DC unbalance current between 20mA and 80mA as seen by the PSE. December 2, 2019 Sifos Technologies Page...

  • Page 37: Technical Data: Pva-3000

    Bypass Mode TEST Port to THRU ≤ -15 dB, 1MHz to 100MHz Return Loss Port (All Pairs)  (terminated 100 / pair) ≤ -33 dB, 1 MHz to 100MHz Pair-Pair Isolation (All Pair Combo’s) December 2, 2019 Sifos Technologies Page...

  • Page 38: Link Partner Transmitter / Incoming Link Integrity Measurements

    96, 576, or 11006 Internal Test Port Packet 10/100/1000BaseT Counting payload bit periods Transmitted Packet Count 0 = Continuous 32K, 128K, 5120K, or 1024K Received Packet Count 0 to > 1e9 Receive Packet Filtering NONE December 2, 2019 Sifos Technologies Page...

  • Page 39: Impairment Synthesis Specifications

    Link Link Status : Link Up, : Link Down : 100M Cat5e Line Impairment Connected Line Impairment Impr Connection : Line Impairment Removed BLINKING : Indicates Host Communications to PVA-3102 Communications Test Port 2.7.7. December 2, 2019 Sifos Technologies Page...

  • Page 40: Programming And Control

    Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at their own expense. December 2, 2019 Sifos Technologies Page...

  • Page 41: Pva Interactive Software

    After selecting and connecting to a PVA Chassis address, the Main Menu (see Figure 3.3) will appear along with the Slot-Port Control helper menu. The Main Menu will open by default to the first tab sub-menu, Port Config. Each of the tab sub-menus will be addressed in Sections 3.6 through 3.13 below. December 2, 2019 Sifos Technologies Page...

  • Page 42: Loading And Saving Dut Configurations

    /Results/ subdirectory used for all PVA reporting. Users may elect to route reporting to another subdirectory elsewhere using the Browse control. Figure 3.6 Creating a DUT Configuration File December 2, 2019 Sifos Technologies Page...

  • Page 43: Navigating Pva Instruments And Test Ports

    Sections 2.1 and 2.2.7. It consists of four framed sub-menus:  Port Connection  Port Impairments  Active Impairments  (Selected) Actions December 2, 2019 Sifos Technologies Page...

  • Page 44: Port Config Menu-Wide Controls

    Port Connections checkbox is selected. 3.6.4. Port Impairments Sub-Menu The Port Impairments sub-menu also controls test port switching options. The Figure 3.11 Pending Port Config 100 Meter Cat5e sub-menu represents the Line Loss impairment discussed December 2, 2019 Sifos Technologies Page...

  • Page 45: Active Impairments Sub-Menu

    TEST PHY. This is achieved by selecting Automatic. Alternatively, selecting Nominal will also mitigate any impairment effect of these transmit signal characteristics by fixing them at a typical mid-range value. December 2, 2019 Sifos Technologies Page...

  • Page 46: Configuration Replication

    TEST PHY receiver. It consists of five sub-menus:  Link Config  Gigabit Config  Test Signal  Test PHY  (Selected) Actions Figure 3.14 Link Configuration Menu December 2, 2019 Sifos Technologies Page...

  • Page 47: Link Config Menu-Wide Controls

    Arm Configuration and RE-LINK. Generally, the duplex configuration of a link is not significant in the outcome of physical layer measurements and receiver testing meaning that the Automatic setting will normally work fine for most operations. December 2, 2019 Sifos Technologies Page...

  • Page 48: Test Signal Sub-Menu

    1 to 100 meters of Cat5 cabling. It corresponds to the Rx Gain setting of “4” (on a 1 to 10 scale) that can be configured in PowerShell PSA. It is the only fixed gain (that is, non-automatic) setting available for 10BaseT links. December 2, 2019 Sifos Technologies Page...

  • Page 49: Link Config Actions Sub-Menu

    Link State (LINKED or UNLINKED)  Link Speed (10, 100, or 1000)  Link Polarity (MDI or MDI-X)  Duplex Mode (FULL or HALF)  Gigabit Mode (MASTER or SLAVE)  Pair 1&4 Polarity (SWAPPED or NOT_SWAPPED) December 2, 2019 Sifos Technologies Page...
  • Page 50 10 seconds built into the Link Stability measurement. It can also report if extremely short link drops occur that the sampling misses during a Link Stability measurement. The current status of the Link Monitor is reported in the Monitor Status display. Generally this will indicate either “READY” or “MEASURING”. December 2, 2019 Sifos Technologies Page...

  • Page 51: Link Partner Assessment

    Generally, a reliable 10/100 link should occur consistently in well less than one second and a reliable 1000Base-T link should occur consistently in less than 2 seconds. For further information regarding assessment of 10/100/1000 Auto-Negotiation, see Sifos application note Auto-Neg Analysis with the PhyView Analyzer. December 2, 2019 Sifos Technologies Page...

  • Page 52: 3.10. Meters Menu

    Grp 12 | Grp 13 | Grp 14 | Grp 23 | Grp 24 | Grp 34 | All (Pair Groups) (None – reports present incoming pair) Power (None – reports all 4 pairs) 1000 (None – reports all 4 pairs) Skew 1000 December 2, 2019 Sifos Technologies Page...

  • Page 53: Psd Frequency Range & Trace Display

    – this will always precede the measurement result. Section 4 will cover the topic of PowerShell PSA for the PhyView Analyzer. December 2, 2019 Sifos Technologies Page...

  • Page 54: 3.11. Packets Menu

    CRC meaning the packet on the line for a 60 byte selection is 64 bytes total and for a 1512 byte selection is 1516 bytes. There are five choices for Frame Count as follows:  Continuous: Transmit frames indefinitely until Stop Packets is pressed December 2, 2019 Sifos Technologies Page...

  • Page 55: Packet Reception And Counting

    Packet counting will run indefinitely until the Stop Count button is pressed. During this period, regardless of the Receive Status, the Clear & Start Count button will be disabled. Figure 3.28 Packet Counting in Packets Menu December 2, 2019 Sifos Technologies Page...

  • Page 56: Packet Flow Testing

    The process described in this section could be effected simultaneously in both directions where both PVA test ports #1 and #2 are transmitting with impairment and counting packets all at the same time. This would effectively double the testing throughput. December 2, 2019 Sifos Technologies Page...

  • Page 57: 3.12. Phy Tests Menu

    Figure 3.31 Running pva_tx_1000 Test The Rx Method selection decides whether the receiver tests, pva_rx_10, pva_rx_100, and pva_rx_1000, will utilize Link Monitor measurements or Packet Flow measurements. As discussed earlier in Sections 1.3.12 and 3.11.4, December 2, 2019 Sifos Technologies Page...

  • Page 58: Sequencing Phy Performance Tests To A Report

    Test and sequence status is displayed in the Status display box. When the sequencer is running, the Results display box will indicate current test and test port. The top of the display will present the PowerShell PSA command used for the configured sequence of tests and test ports. December 2, 2019 Sifos Technologies Page...

  • Page 59: The Dc Unbalance Analysis Application For Pse's

    Ethernet twisted pairs for the delivery of PoE (Power-over-Ethernet). The testing performed is therefore specific to PSE’s and must be performed using two additional components: A Sifos Technologies PSA-3000, PSA-3002, or PSL-3000 PoE analyzer A Sifos Technologies PVA-DCU In-Line DC Unbalance Channel The DC Unbalance Analyzer is explained further in Section 5.6.

  • Page 60: 3.14. Demo Mode

    PVA instrument, this mode will be invoked automatically. Demo Mode is entered by selecting the Demo Mode checkbox in the PVA initial connection dialog, or at any time in the Chassis Selection dialog (see Figure 3.38). December 2, 2019 Sifos Technologies Page...

  • Page 61: 3.15. Pva Help Menus

    All PowerShell PSA modules that relate to the PhyView Analyzer as well as all PVA Interactive modules are included in this window. Figure 3.43 PVA Software Versions December 2, 2019 Sifos Technologies Page...

  • Page 62: 3.16. Pva Interactive Examples

    Link Monitor Verify link status over 5 seconds Select the Link Monitor Tab Select Link Status under Sample Select 100 under Link Count Select 50 msec under Count Interval Click Measure Expect: LINKED, Speed= 100, December 2, 2019 Sifos Technologies Page...

  • Page 63: Example 2: Assess Link Stability 1000Baset Dut In Slave Mode, With Line And Offset Impairments

    Verify link stability over 10 seconds Select the Link Monitor Tab Select Gig. Remote under Sample Select 100 under Link Count Select 100 msec under Count Interval Click Measure Expect: LINKED, Speed= 1000, MASTER, Meas._Count= December 2, 2019 Sifos Technologies Page...

  • Page 64: Example 3: Calibrate Test Port For Psd, Both 100Basetx And 1000Baset

    Select 64 (or desired value) under Averages Click Run Calibrations Verify Test Port Connections Test cable should connect the test port to be calibrated to a mating calibration port. Click Start Cals Calibrations sequence and completed December 2, 2019 Sifos Technologies Page...

  • Page 65: Example 4: Measure 4-Pair Psd And Snr Of Calibration Partner Linked At 1000Base-T

    Select All under Pair(s) Click Measure Meters Measure PSD. Select the Meters Tab Select 1000 under Link Speed Select PSD under Meter Type Select All under Pair(s) Click Measure –2.6dB Expect & Flat Frequency Response December 2, 2019 Sifos Technologies Page...

  • Page 66: Example 5: Measure Wideband Power Loss Of Line Loss Impairment Given 100Basetx Dut

    Measure Power with line impairment switched in. Select the Meters Tab Select 100 under Link Speed Select Power under Meter Type Click Measure Conclusion: Wideband power loss of the Line Loss impairment is 0.3 dB - 7.5 dB = December 2, 2019 Sifos Technologies Page...

  • Page 67: Example 6: Establish And Verify Packet Forwarding In A Switch

    Packets tab is refreshed after Port 2 is selected. Click on Update Status & Count. The Receive Status and Receive Count should stay the same. Packets Stop the Received Packets Counter Click on Stop Count. Packet Count= 524288 December 2, 2019 Sifos Technologies Page...

  • Page 68: Example 7 Measure 1000Baset Packet Loss In A Switch With Impairments Enabled

    Select the Packets Tab Click Clear & Start Count under Received Packets Port Select Select the port to transmit packets while impaired. Click on Port 1 in Slot 1 on the Slot Port Select menu.. December 2, 2019 Sifos Technologies Page...

  • Page 69: 3.17. Host Computer And Network Latency Qualification

    Latency Evaluator is under “ideal” conditions, that is, a computer that is not simultaneously carrying out other user Figure 3.44 Latency Evaluator Utility interactive tasks. December 2, 2019 Sifos Technologies Page...
  • Page 70 PVA-3000 Reference Manual December 2, 2019 Sifos Technologies Page...

  • Page 71: Powershell Psa Software

    4.2. PSA Connection Dialog Unlike PVA Interactive, PowerShell PSA has the capability to connect to any Sifos Technologies PowerSync Analyzer (PSA) or PhyView Analyzer (PVA), including instruments that may include both test blade types. When PowerShell Tcl is opened (see Figure 4.1),...

  • Page 72: Powershell Psa Demo Mode

    Connect. With Demo Mode, users are given a choice of which type of PSA platform they would like to emulate when PowerShell opens Figure 4.5 PowerShell Wish Demo (see Figure 4.5). Users can also select the chassis slot population. Menu December 2, 2019 Sifos Technologies Page...

  • Page 73: Powershell Psa Command Documentation Conventions

    Script Editing with Notepad ++ (for Microsoft Windows) PowerShell PSA scripts may be created and edited in the freely available Notepad++ source code editor that is readily available on the web (e.g. https://notepad-plus-plus.org). This powerful editor is knowledgeable of Tcl/Tk and December 2, 2019 Sifos Technologies Page...

  • Page 74: Powershell Connection And Configuration Commands

    Count of latency measurements to be performed. Range is 100 to 2000 measurements. . Default value is 100 measurements. Higher counts will catch more intermittent problems. -v: Produce diagnostic details from the psa_latency_test utility. Default is no diagnostic details. December 2, 2019 Sifos Technologies Page...

  • Page 75: Test Port Connection And Passive Impairment Configuration

    Perform the line mismatch connect or disconnect on just LAN Pair 1 and 2 (Blue and Orange TIA pairs). pair34 Perform the line mismatch connect or disconnect on just LAN Pair 3 and 4 (Green and Brown TIA pairs). December 2, 2019 Sifos Technologies Page...

  • Page 76: Test Port Active Impairment Configuration

    Program jitter level to +3 dB relative to 1.4 nsec pk-pk. jitter_pwr Program jitter level in dB relative to 1.4 nsec pk-pk. Range is –6 dB to + 24 dB in 0.5 dB steps.) December 2, 2019 Sifos Technologies Page...

  • Page 77: Test Port Trigger Generation

    Force link to full duplex only duplex half Force link to full duplex only Configure link speed and duplex mode but suppress any re-link (auto-negotiation) until a later re-link operation takes place. Enables use with port ‘99,99’. December 2, 2019 Sifos Technologies Page...
  • Page 78 MASTER | SLAVE | FAULT state Query returns present configured gigabit Ethernet timing mode of current or specified test port. Value is only meaningful when linked 1000BaseT. FAULT indicates problem with resolving gigabit timing mode. December 2, 2019 Sifos Technologies Page...

  • Page 79: Test Phy Front-End (Pma) Configuration

    Configures Test PHY for a high transmit slew rate (6 out of 8) Configures Test PHY for a maximum transmit slew rate (8 out of 8) txslew Configures Test PHY for transmit slew rate from 1 (slowest slew) to 8 (fastest slew) December 2, 2019 Sifos Technologies Page...

  • Page 80: Dut Transmitter Measurement Calibrations

    PSA Software wake-up default = 3.) nAvgs Specifies the number of raw measurements to nAvgs average into each echo response finished measurement. Range is 1 to 64. (Test Port wakeup default is 10). Timeout 10 | 100 December 2, 2019 Sifos Technologies Page...

  • Page 81: Dut Transmitter Measurement Configurations And Queries

    <port> stat READY Measures 1000BaseT (gigabit) timing skew on all 4 LAN pairs. Measurement is only immediate triggered and does Pair_1_Skew not require or retain configurations. Pair_2_Skew Pair_3_Skew Pair_4_Skew LINK_DROP | UNLINKED | DISCONNECTED December 2, 2019 Sifos Technologies Page...
  • Page 82 10 seconds following stat query. (Test Port wake-up default) timeout 100 specifies that an Event Triggered measurement should time out if no trigger is received within 100 seconds following stat query. December 2, 2019 Sifos Technologies Page...
  • Page 83 10 seconds following stat query. (Test Port wake-up default) timeout 100 specifies that an Event Triggered measurement should time out if no trigger is received within 100 seconds following stat query. December 2, 2019 Sifos Technologies Page...
  • Page 84 10 seconds following stat query. (Test Port wake-up default) timeout 100 specifies that an Event Triggered measurement should time out if no trigger is received within 100 seconds following stat query. December 2, 2019 Sifos Technologies Page...

  • Page 85: 4.10. Link Status And Dut Receiver Measurements

    + Sample Type following stat query. (Link “up” | Remote “ok”) clear Clear latched Link Status & Remote Fault history stat reg1 Append results with Latched Link Status & Remote Fault Status (IEEE 802.3 Register 1) December 2, 2019 Sifos Technologies Page...
  • Page 86 8 nibbles (4 bytes) in hexadecimal format. Wake-up default is “55BEA6C0”. start Starts MAC frame transmission and returns current status of frame transmission. stop Discontinues MAC frame transmission immediately and returns to IDLE state. stat Provide status of packet transmission December 2, 2019 Sifos Technologies Page...

  • Page 87: 4.11. Powershell Psa Test Support Utilities

    Test Support Utility commands. As with the Test Port Configuration and Measurement commands, port parameter may be used with these commands to direct which slot-port should be configured or from which slot-port to return a status. Broadcast port =99,99 is not accepted with PowerShell utilities. December 2, 2019 Sifos Technologies Page...
  • Page 88 Force UUT port to FULL Duplex. HALF: Force UUT port to HALF Duplex. Default is Auto-Negotiate DUPLEX. off_time: Duration of LAN disconnect prior to physical connection. Range is 2 to 15 seconds. Default is 7 seconds. December 2, 2019 Sifos Technologies Page...

  • Page 89: 4.12. Powershell Calibration Utilities

    Pair Group, and Date of each calibration for that chassis. Link_Rate, Date, and Time psaAddress Non-Default PSA/PVA chassis. Default is current connected PSA/PVA chassis. Present results in table form for easy reading. Default is return ordinary (TCL) list. December 2, 2019 Sifos Technologies Page...

  • Page 90: 4.13. Powershell Multi-Pair Measurement Utilities

    Utility will first verify presence of all required | UNLINKED calibrations. … Pair Group + nAvgs Specifies non-default number of averages to use (READY + Xtalk) in measurement. Range is 1 to 64. Default is 8. | UNLINKED} + AVG_Xtalk December 2, 2019 Sifos Technologies Page...

  • Page 91: 4.14. Powershell Multi-Port Measurement Utilities

    1 is TIA blue pair, Pair 2 is TIA orange pair, Pair 3 is TIA green pair, slot,port_N and Pair 4 is the TIA brown pair. (READY + nAvgs Specifies non-default number of averages to use in RL(dB)) measurement. Range is 1 to 64. Default is 8. | UNLINKED } December 2, 2019 Sifos Technologies Page...

  • Page 92: 4.15. Powershell System & Chassis Commands

    & file name to be downloaded to the chassis flash memory. Use forward slashes for directory level delimiters in filename. Enclose in quotes if there are spaces in filename. December 2, 2019 Sifos Technologies Page...

  • Page 93: 4.16. Phy Performance Test Suite Commands & Utilities

    Assesses link rates (10, 100, 100BaseTX Counts + 1000 BaseT), Duplex Modes, and MDI / MDI-X Connectivity. 1000BaseT Counts Link Stability reported on a scale of 0 to 100 where 100 means full link stability. December 2, 2019 Sifos Technologies Page...
  • Page 94 Exclude Line Loss impairment from all impairment configurations as required for service outlet testing. Default is to always connect line loss impairment. impair offset_dB Adjust Noise and Jitter impairment levels by -6dB to +3dB from default levels (see Returned Parameters). December 2, 2019 Sifos Technologies Page...
  • Page 95 Exclude Line Loss impairment from all impairment configurations as required for service outlet testing. Default is to always connect line loss impairment. impair offset_dB Adjust Noise and Jitter impairment levels by -6dB to +3dB from default levels (see Returned Parameters). December 2, 2019 Sifos Technologies Page...
  • Page 96 “DOWN” indictors configurations as required for service outlet testing. Default is to always connect line loss impairment. impair offset_dB Adjust Noise and Jitter impairment levels by -6dB to +3dB from default levels (see Returned Parameters). December 2, 2019 Sifos Technologies Page...
  • Page 97 100% packet loss to a 100BaseTx Receiver. Connect according to MDI or MDI-X polarity. Default is current polarity connection. Assess DUT’s Remote Receiver Status indicator function. 1000 DUT will be configured to MASTER mode. December 2, 2019 Sifos Technologies Page...
  • Page 98 Adjust Noise and Jitter impairment levels by -6dB to +3dB from default levels in any receiver tests (pva_rx_10, pva_rx_100, pva_rx_1000) that are included in the test sequence. December 2, 2019 Sifos Technologies Page...

  • Page 99: Pva_Veriphy Automated Multi-Port Test Application

    Test report should be recorded in an ASCII text file. (Default is report to screen or calling script only.) Full path and file name in “x:/dir1/dir2/filename.txt” format. pathname December 2, 2019 Sifos Technologies Page...

  • Page 100: 4.18. Powershell Psa Scripting Examples

    # Verify link configuration and link status over 5 seconds. set rslt [pva_link_mon $port sample link count 100 period 50 clear stat] Figure 4.5 Exercise 1 Script Execution Expected Result: LINKED, Speed = 100, MDI, Rx_Power_3 December 2, 2019 Sifos Technologies Page...

  • Page 101: Example 2: Assess Link Stability 1000Baset Dut In Slave Mode, With Line And Offset Impairments

    [pva_link_mon $port sample remote count 100 period 100 clear stat] Figure 4.6 Exercise 2 Script Execution Ideal Result: LINKED, Speed = 1000, MASTER, Count = 100 Remote_Gig_OK Actual Result: Count = 78 December 2, 2019 Sifos Technologies Page...

  • Page 102: Example 3: Calibrate Test Port For Psd, Both 100Basetx And 1000Baset

    # Force a re-link, to establish the desired line conditions. pva_relink $port # Measure SNR. set rslt [mpair_snr $port link 1000 avg 16] # Measure PSD. set rslt [mpair_psd $port start 1 stop 100 link 1000 avg 16] December 2, 2019 Sifos Technologies Page...
  • Page 103 Figure 4.8 Exercise 4 Script Execution – SNR Results Ideal Result: LINKED, 36 dB on each pair Figure 4.9 Exercise 4 Script Execution – PSD Results Ideal Result: -2.6dB, Flat Frequency Response 1 – 100 MHz December 2, 2019 Sifos Technologies Page...

  • Page 104: Example 5: Measure Wideband Power Loss Of Line Loss Impairment Given 100Basetx Dut

    $port stat] 5] # Calculate the wideband power loss of the Line Impairment set LOSS [expr $dB - $impr_dB] Figure 4.10 Exercise 5 Script Execution Conclusion: Wideband loss of the Line Impairment is 7.1 dB. December 2, 2019 Sifos Technologies Page...

  • Page 105: Example 6: Establish And Verify Packet Forwarding In A Switch

    # Check for Transmit completed while {[lindex [pva_tx_pkt $TxPort stat] 3] != "IDLE"} { } # Read the Received Packet Counter. set rslt [pva_rx_pkt $RxPort stat] # Stop the Received Packet Counter. pva_rx_pkt $RxPort stop December 2, 2019 Sifos Technologies Page...

  • Page 106: Example 7: Measure 1000Baset Packet Loss In A Switch With Impairments Enabled

    Note: Test port 1,1 and 1,2 MAC addressing were configured in previous example to send traffic to each other. Switch bridging was also established and it is assumed to be in tact for this example. December 2, 2019 Sifos Technologies Page...
  • Page 107 # Stop the Received Packet Counter. set rslt [pva_rx_pkt $RxPort stop] # Calculate Packet Loss. set lostPackets [expr 1048576 - $rcvdPackets] Figure 4.12 Example 7 Script Results Conclusion: This example shows a loss of 1371 packets (0.13%). December 2, 2019 Sifos Technologies Page...
  • Page 108 PVA-3000 Reference Manual December 2, 2019 Sifos Technologies Page...

  • Page 109: Phy Performance Test Suite

    The PHY Tests tab menu in PVA Interactive will only be enabled if the instrument is licensed for the PHY Performance Suite feature. PowerShell PSA commands described in Section 4.16 are similarly enabled only for instruments with this license. Contact Sifos Technologies for further information regarding enabling this feature. 5.2. Link Capabilities Test...
  • Page 110 Could not be assessed – not applicable Slv_Fault NONE Forced SLAVE timing (link partner = MASTER) did not produce Fault indicator FAULT Forced SLAVE timing (link partner = MASTER) produced a Fault indication Could not be assessed – not applicable December 2, 2019 Sifos Technologies Page...

  • Page 111: Transmission And Interface Tests

    If the standard spreadsheet report is selected, the results of the PSD measurements will be used to estimate IEEE 802.3 peak-to-peak voltage levels (Vpp), waveform droop (%), and rise/fall time (nsec) on a per-pair basis. The measured parameters will be displayed in both tabular and graphical form, shown below in Section 5.5. December 2, 2019 Sifos Technologies Page...

  • Page 112: 1000Baset Transmission Test

    As fully automated tests, all receiver tests must always deal with some important tasks:  Assuring initial link success with new connection and each impairment  Assuring recovery from link drops  Managing timer intervals over which measurements are performed December 2, 2019 Sifos Technologies Page...

  • Page 113: 10Baset Receiver Test

    The default test configuration applies Line Loss. This can be overridden if the pva_rx_100 command is executed from PowerShell, for example if testing a service outlet, where there is already some significant line loss present. Subtract 2 dB for PVA-3102 version 1 or 2 hardware. December 2, 2019 Sifos Technologies Page...

  • Page 114: 1000Baset Receiver Test

    Section 5.5. “Excellent” performance typically means that the receiver is operating beyond the minimum requirements of the 802.3 specification and is on par with the state of the art in 10/100/1000Base- T transceivers. December 2, 2019 Sifos Technologies Page...

  • Page 115: Standard Phy Performance Test Report

    Nominal Exceeds applicable 802.3 specifications Marginal On or near the limit of one or more 802.3 specifications Failure Probable 802.3 limit violation(s) Figure 5.1 PHY Performance Test Suite Standard Report December 2, 2019 Sifos Technologies Page...

  • Page 116: Basic Capabilities Test Results

    5.5. This provides a quick perspective of wideband power levels by link speed and transmitting pair. The bar graphs will Figure 5.4 Transmit Power Level and SNR Tabular Results depict both positive and negative deviations December 2, 2019 Sifos Technologies Page...
  • Page 117 These points span 4MHz to 100MHz for 100BaseTx and 4MHz to 88MHz for 1000BaseT (see Figure 5.8). Tabular results include pairs 2 and 3 for 100BaseTx and pairs 1-4 for 1000BaseT. PSD (power) versus December 2, 2019 Sifos Technologies Page...
  • Page 118 Criteria for marginal performance will typically be in the –20dB range and specification failure will be estimated given readings in the –18 dB range. Figure 5.11 shows the bar graph representation of Bulk Return Loss by pair. December 2, 2019 Sifos Technologies Page...

  • Page 119: Receiver Test Results

    Figure 5.13 where the reported value is percent packets received at the calibration partner port. Limit thresholds for impaired receiver testing are independent of metering method, that is, Link Monitor or Packet Flow. The Figure 5.14 100BaseTx Receiver Test Results December 2, 2019 Sifos Technologies Page...

  • Page 120: Configuring The Test Report Location

    DC power up to 30 watts or more on the same twisted pairs that carry 10/100/1000BaseT signals up to 100 meter distances. This allows Powered Devices (PD’s) such as VoIP phones, wireless access points, and security cameras to operate independent of other electrical power sources. December 2, 2019 Sifos Technologies Page...

  • Page 121: The Dc Unbalance Impairment

    30.0 Watt 57 VDC 17.0 mA 8.5 mA 25.4.4a1 given 100BaseTx Baseline Wander packets As suggested above, the I levels from PoE would be additive to any DC biases created by baseline wander. bias December 2, 2019 Sifos Technologies Page...

  • Page 122: Dc Unbalance Analysis With The Phyview Analyzer

    17. DCU Unbalance Current added by PSA load level passing through the PVA-DCU The magnetics in the PowerSync Analyzer test port only see the second component of DC Unbalance and therefore will experience ≈10mA less biasing, or ≈20mA less DC Unbalance than the DUT port. December 2, 2019 Sifos Technologies Page...

  • Page 123: Pse Dc Magnetic Unbalance Reporting

    The goal for SNR would be to remain above ≈27 dB at all DC Unbalance levels, preferably > 29 dB. Low Frequency PSD should ideally remain above –7 dB. Figure 5.21 PSE DC Unbalance Standard Report December 2, 2019 Sifos Technologies Page...
  • Page 124 PVA-3000 Reference Manual December 2, 2019 Sifos Technologies Page...

  • Page 125: Specialized Scripting & Automation With The Pva-3000

    (arm pva_pkt_addr pva_xtalk (config only) only) pva_tx_clk pva_gig_mode (arm pva_link_mon (config only) only) pva_test_signal pva_tx_pkt (config only) pva_rx_pkt (start/stop only) Broadcast port values 99,N N,99 require PSA-3000 controller firmware version 3.0f or newer. December 2, 2019 Sifos Technologies Page...

  • Page 126: Event Triggered, Multi-Port Measurements

    { [lindex $status 3] != "MEASURING"} { set psdResp($port) $status set idx [lsearch $portList $port] set portList [lreplace $portList $idx $idx] # Test Port List # Scan Loop # View the results in PowerShell parray psdResp December 2, 2019 Sifos Technologies Page...

  • Page 127: Multi-Port Packet Transmission And Analysis

    # Retrieve all of the Rx counts to array variable rxCounts, discontinue packets foreach port $rxPortList { set status [pva_rx_pkt $port stat] set rxCounts($port,Count) [lindex $rawStat 6] set rxCounts($port,CRCErr) [lindex $rawStat 8] pva_rx_pkt 99,99 stop pva_tx_pkt 99,99 stop December 2, 2019 Sifos Technologies Page...

  • Page 128: Merging The Powershell Psa Api Into Tcl And Wish Shells

    PowerShell Tcl will attempt to open a connection to the most recently connected PSA address. The delay associated with the connection prompt may be set between 2 and 60 seconds. December 2, 2019 Sifos Technologies Page...

  • Page 129: Initial Connection Dialog Control - Powershell Wish (And Psa Interactive)

    PowerShell PSA and a supported version of Tcl must be installed on the system where the API library will be used. The PhyView API Library Reference Manual (PhyView API Library Ref Manual.pdf) provides information regarding the functions provided in the library, and usage with selected programming languages. December 2, 2019 Sifos Technologies Page...

  • Page 130: Tcp Socket Server

    SERVER_STOPPED any new connections. The TCP Socket Interface method, including an example, is discussed in greater detail in the Sifos Technologies application note PowerShell PSA - Remote Access Methods (PowerShell PSA - Remote Access Methods.pdf). Additionally, application notes with specific examples of the TCP Socket Interface are available for the following application environments: ...

  • Page 131: Mailbox File Method

    The Mailbox File technique, including an example, is discussed in detail in the Sifos Technologies application note PowerShell PSA - Remote Access Methods (PowerShell PSA - Remote Access Methods.pdf).

  • Page 132: Pva_Veriphy Tests

    IEEE 802.3 worst case insertion loss Link Stability (0 – 100%) connections to a link partner SNR (pair N, dB)  Assess residual distortion, that is, bulk deviation from an ideal transmission signal on one of the transmitting pairs. December 2, 2019 Sifos Technologies Page...

  • Page 133: Pva_Veriphy Reporting

    Section 6.4.1. Figure 6.2 presents a nominal test report from testing 6 ports of a 10/100Base-T Ethernet Figure 6.2 6-Port 10/100Base-T Nominal Test Report device. Note that test time per port was 79 December 2, 2019 Sifos Technologies Page...

  • Page 134: Managing Test Limits And Link Delay Tolerances In Pva_Veriphy

    December 2, 2019 Sifos Technologies Page...

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