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WaveTest User`s Manual

1. Double clicking on the body field brings up the following data form This form can be used to fill out the body field E4 Reassociation Response Data Capability Information pon tC Status Code 0 Successful 4 Association ID i Supported Rates sss 147 Lex Cancel Double clicking on the Capability Information field brings up an additional form for setting the capability information element Double clicking on the Supported Rates field brings up an addition form for setting the supported rates information element Error FCS Select this to force an FCS error to be generated with the frame VeriWave Inc All rights reserved WaveTest User s Manual Obey Defer Select this to cause the frame to defer transmission until there is no contention indicated The frame will be transmitted tx defer value after the channel is determined to be clear See IFS Values command for explanation of tx defer value Affect on log file Complete command inserted in log file at estimated send time VeriWave Inc All rights reserved 109 RTS 110 WaveTest User s Guide Generate a Request To Send RTS frame Ee RTS Frame m RTS frame control duration RA TA b4 00 zt any addrs any adds 7 error FCS obey defer Lex Cancel FiELDS Frame Control Two byte value for the Frame Control field The format is byte0 bytel See Frame C
2. OVeriWave Inc All rights reserved WaveTest User s Manual Collide with frame This command creates collisions with specific frames by generating interference The control fields are used to match specific frames that are captured by the WT1xxx1000 so that highly selective collisions can be generated If the frame is matched the collision is done and control of the sequence goes to the next command in the sequence otherwise a timeout will occur and control will be transferred to the location given the Goto Label field 2a Collide Sequence m Collide with frame where Frame Match frame control mask duration mask address 1 address 2 address 3 p0 R any addrs any addrs any addrs A with a timeout of 10000 goto label A uSec from current time Lex Cancel FIELDS Frame Control Mask This field can contain either an explicit two byte mask or variable name This field matches the Frame Control field of an 802 11 frame The byte format is byte0 bytel Double clicking on the field will bring up the Frame Control Form NOTE Valid byte mask values are Wildcard matches any byte value If there is only a single the whole field is matched XX Matches on the byte value XX The field is ignored It should not be coming out and thus a match is not attempted Duration Mask This field is a two byte mask matching the Duration field of the 802 11 frame The byte format is byte0
3. DA Destination Address The DA field contains an IEEE MAC individual or group address that identifies the MAC entity or entities intended as the final recipient of the MSDU or fragment thereof contained in the frame body The value is selected from one of the addresses defined with the Address command SA Source Address The SA field contains an IEEE MAC individual address that identifies the entity from which the transfer of the MSDU or fragment thereof contained in the frame body was initiated The value is selected from one of the addresses defined with the Address command VeriWave Inc All rights reserved 89 WaveTest User s Guide BSSID This field provides a unique identifier for the BSS It is of the form of an IEEE MAC address In infrastructure BSS mode this value is the MAC address of the AP The value is selected from one of the addresses defined with the Address command Sequence Control Fields These fields are used to set the 16 bit Sequence control fields See the Sequence Control Sub command for details Body The body field contains a hex value in byte format byteO bytel byte2 The definitions of the bytes are shown in the table below Table 9 Deauthenticate Frame Body Number of Octets Information Format 2 Reason Code B0 b1 Double clicking on the body field brings up the following data form This form can be used to fill out the body field y ij
4. Error FCS Select this to force an FCS error to be generated with the frame Affect on log file Complete command inserted in log file at estimated send time 86 VeriWave Inc All rights reserved WaveTest User s Manual Data Data CF Ack Data CF Poll Data CF Ack CF Poll Generate a data frame or data frame with Contention Free controls CF Ack CF Poll CF Ack CF Poll a Data Frame m Data Frame Control Duration Addrs 1 Addrs 2 Addrs 3 Seq Num Ctrl Addrs 4 Payload Pattern o8 00 ff 7f any_addrs fany_adars any addrs fuser specified fany_adars fall ones 4 Seq Num Payload Size bytes A D I Frag Num Ctrl Raw Data user specified 4 Fragment Num 0 error FCS obey defer Cancel FIELDS Frame Control Two byte value for the Frame Control field The format is byte0 bytel See Frame Control sub command for details Duration Two byte value for the Duration field The format is byte0 bytel Bit 15 must be 0 for this frame addrs 1 addrs 2 addrs 3 addrs 4 These values are selected from one of the addresses defined with the Address command See the Data Frame Addresses sub command section for more information on selecting proper values for these fields Sequence Control Fields These fields are used to set the 16 bit Sequence control fields See the Sequence Control Sub command for details VeriWave Inc All rights reserved 87 WaveTest User s Guide Paylo
5. Type SubT ype This field holds an 8 bit value containing the frame type amp subtype values The drop down list contains all the legal combinations This value is automatically set to the correct value for the frame command that is being generated VeriWave Inc All rights reserved WaveTest User s Manual To DS From DS This field is 2 bits wide and is used to indicate the direction of the frame relative to the DS The values can be set according to below Table 3 To From DS Values To DS From DS Meaning 0 0 A data frame from STA to STA within the same IBSS Also for all management and control type frames 1 0 Data frame destined for the DS 0 1 Data frame exiting the DS 1 1 Wireless distribution system WDS frame being distributed from one AP to another AP More Flag Single bit value used to indicate fragmentation Set to 1 in all data and management frames that have additional fragments to follow the current MSDU or MMPDU Set to 0 in all other frames Retry Single bit value used to indicate a retransmission Set to 1 in any data or management frame that is a retransmission of an earlier frame Set to 0 in all other frames Pwr Mgnt Single bit value used to indicate Power Management status Set to 1 to indicate that the STA will be in power save mode following the completion of the frame exchange sequence Set to 0 to indicate that the STA will be in active mode and for all AP
6. Body The body field contains a hex value in byte format byteO bytel byte2 The definitions of the bytes are shown in the table below Table 8 Beacon Frame Body Number of Octets Information Format 8 Timestamp b0 b1 b2 b3 b4 b5 b6 b7 2 Beacon Interval b8 b9 2 Capability information B10 b11 3 SSID 00 length value 3 Supported rates 01 lt length gt lt value gt 3 FH Parameter Set 02 length lt value gt 3 DS Parameter Set 03 length value 3 CF Parameter Set 04 length lt value gt 3 IBSS Parameter Set 06 length value 3 TIM 05 length value Double clicking on the body field brings up the following data form This form can be used to fill out the body field Note The SSID field can be filled in as an ASCII expression using the data form The ASCII characters are converted to hex values in the frame body field OVeriWave Inc All rights reserved WaveTest User s Manual Timestamp Beacon Interval Capability Information SSID ASCII F Supported Rates FH Parameter Set F DS Parameter Set ETE 1 2412MHz E r CF Parameter Set 00 02 e6 03 00 00 E r IBSS Parameter Set TU loa 00 A JATIM 00 00 00 00 Co Cancel Error FCS Select this to force an FCS error to be generated with the frame Obey Defer Select this to cause the frame to defer transmission until t
7. Hence the Test Points control computer and DHCP server should all be present on the same IP subnet i e a router should not be present between any of the Test Points and the control computer or DHCP server If the supplied Ethernet cable is not long enough to connect between the Test Point and the switch or hub a user supplied Category 5 shielded or unshielded cable may be used instead Note that the length of the cable between the Test Point and the Ethernet hub or switch should not exceed 328 feet 100 m in length Connection of a multiple Test Point system An example of a multiple Test Point system setup is shown in Figure 2 In the figure two Test Points rear panels shown Figure 2 Connections for a multiple Test Point system VeriWave Inc All rights reserved WaveTest User s Manual ti test poini Sync 10Base T 4 aN AC Power To ethernet F a O O ti test point Sync 10Base T oy 28 To ethernet To port 1 of addition Test Point As in the single Test Point case the LAW jack on each Test Point should be connected to a port on a switch or hub using a Category 5 twisted pair cable not exceeding 328 feet 100 m in length The control computer should
8. Verify that DHCP server is present and active on the LAN segment Verify that a router is not interposed between Test Points and DHCP server Verify that control computer obtains its IP address via a DHCP server Verify that DHCP server is associated with the same IP subnet as control computer More than one Network interface adaptor exists on the control computer e Disable all network connections other than the one connected to the Ethernet segment that connects to the Test Points The number of All Test Points not connected to same Ethernet LAN Test Points inthe segment Group Test Verify network topology between Test Points and Point Display control computer window does not correspond to the DHCP server is mis configured or does not have number that were enough free addresses installed but at Check DHCP server connections least one Test Point is displayed Disconnect and power down all Test Points and VeriWave Inc All rights reserved 33 34 WaveTest User s Guide Troubleshooting Chart connect each in turn to verify that it is detected One or more Test Points have malfunctioned Power off Test Points in sequence and then power on again Control computer or WaveTest software has malfunctioned Exit and restart WaveTest software Exit WaveTest software restart computer and then restart WaveTest software Test Point Malfunctions Test sequen
9. seq1 vws My Documents winscp RND ME rd Selection C Documents and Settings Carl Brown OK Cancel Use the dialog box to select your target directory and file name Note The system will automatically add the vws extension Opening a sequence To retrieve a previously saved sequence for use in a test click on the Open button The Open File Dialog window is presented 42 VeriWave Inc All rights reserved WaveTest User s Manual open File Create Dir Delete File Rename File C Documents and Settings Carl Brown 1 4 4 seql vws Selection C Documents and Settings Carl Brown sedt vws In the window you can navigate to the directory containing the desired sequence file All of the sequence filenames in the selected directory are displayed for selection Example sequences Several example sequences are included with the WaveTest product These files are located at VERIWAVE HOME 6 sequences directory by default c Program Files VeriWave WaveTest veriwave_home sequences Refer to the comments within each of the sequence files for details on use and purpose of each sequence file VeriWave Inc All rights reserved 43 WaveTest User s Guide Chapter 6 Running a Test This chapter gives a description of how to run tests on the WaveTest system It covers basic operation of the system including setup and configuration testing using multiple WT1xxx Test Points saving and res
10. start stop L add group rename end1 0 1 2 3 4 5 5 P a e AP mane Cien Tratio JOSS Tatie Derus courtes o View gt Log Window Mo mme Rox Simai DataRate Frame tye FC Dur Adrsi Ads Eoo new Wait for Time 1000 usec End Test Sequence Sequence Wind TestPoint Sequence Actions Log Window The various windows are as follows 46 The Group TestPoint Display window displays the status of all of the WT1xxx Test Points that have been detected by the system The Test Points are initially identified by their assigned MAC addresses however the user can rename the Test Points and assign them more descriptive or meaningful names In addition the Group window permits the user to create logical groups of Test Points in order to run tests using subsets of the available Test Points as well as to simulate virtual BSSs and so on The system automatically creates a group called default All Test Points that are connected together with timing cables are grouped together Note that selecting a Test Point in the Group window will cause a number of actions to occur the counter status and log windows will be updated with information for the selected Test Point If a VeriWave Inc All rights reserved WaveTest User s Manual sequence file is associated with the Test Point the Test Point Sequence window will displa
11. Points are not found even after waiting for this period of time consult the troubleshooting chart given in Chapter 4 for diagnostic recommendations A multiple Test Point setup should preferably have all of the Test Points in the system daisy chained using timing cables to enable precise timing synchronization between them After all of the Test Points have been connected in this manner and powered on the internal clocks within the slave Test Points will automatically begin to synchronize and phase lock to the master t can take up to 5 minutes for the synchronization process to complete Tests cannot be run before synchronization is complete Synchronization is indicated by the green T for each Test Point in the VeriWave Inc All rights reserved 51 WaveTest User s Guide Group TestPoint display A red T indicates that the Test Point is not synchronized If synchronization between the Test Points is not desired then there is no requirement to interconnect them using the timing cables However it is strongly recommended that these cables be used in order to reduce the chance of configuration errors and unpredictable test results Configuring groups In a multiple Test Point system groups of Test Points may be set up to simplify the task of running tests as well as to make test results more predictable by ensuring that all Test Points start execution in synchronism Groups are managed using the Group TestPoint display The butt
12. can contain any alphanumeric character plus and _ The first character must be an alpha character and the name must be at least 3 characters Address value Use this field to enter the hex value for the address in this field This is a 6 byte hex string in the format of xx Xx xXXx Xx Xx Xx The wildcard can be used to match any byte field in the hex string Wildcards cannot be used in frame transmission commands This field can also contain the name of a previously defined address variable or hex string variable VeriWave Inc All rights reserved 133 WaveTest User s Guide Channel 134 This command sets the 802 11 channel number The WT1xxx1000 radio will be set to operate on the specified channel at the current time in the sequence execution This command should be used to initialize the channel number at the beginning of a sequence and can also be used to change the channel number at any point in the sequence A delay of 200usec is associated with this command for the radio to reach a quiescent state Bic channel 1 E Lex Cancel FiELDS Channel Use this field to set the integer value of the channel number The value must be a legal channel number for the 802 11 specification that is in use VeriWave Inc All rights reserved WaveTest User s Manual Data Rate This command sets the transmit receive data rate of the WT1xxx1000 This command should be used to initialize the
13. data Order Security Defaults wep on wep ID Management Defaults Capability Defaults ESS I BSS CF Pollable CF Poll Req Privacy Reserved SSSID ascii enable use ascii text Supported rates Association Defaults Listen I nterval AID Status Code Reason code Current AP Auto Detect Authentication Defaults Auth Algo Auth Trans Challenge text Beacon Defaults Timestamp Auto Gen Beacon Interval ATIM DTIM DTIM cnt DTIM period DTI M ctri DTI M bitmap VeriWave Inc All rights reserved WaveTest User s Manual CF parameters CFP cnt CFP period CFP maxdur CFP durrem Set address variables Address variables are provided to make sequences easy to interpret and allow portability to new lab environments This allows the addresses for the equipment involved in a test to be set once for a sequence instead of needing to be changed in every frame that addresses the particular piece of equipment Click the Address command This allows you to create the name for an address variable and to set the value for that variable In subsequent commands that require an address the variable name can be selected for the address When running a sequence in a new environment or when one of the pieces of equipment changes you can update the sequence by simply redefining the address variables Initialize traffic parameters There are a few commands that need to be set before any frames are generated by a sequence The Channel Data Rate RX
14. FCS Select this to force an FCS error to be generated with the frame 80 VeriWave Inc All rights reserved WaveTest User s Manual Obey Defer Select this to cause the frame to defer transmission until there is no contention indicated The frame will be transmitted tx defer value after the channel is determined to be clear See IFS Values command for explanation of tx defer value Affect on log file Complete command inserted in log file at estimated send time VeriWave Inc All rights reserved 81 WaveTest User s Guide CF End CF End CF Ack Generate a Contention Free CF End frame or CF End CF Ack frame t3 CF end Frame CF end Frame Control Duration RA BSS ID e4 00 p0 00 any addrs any adars error FCS obey defer Co Cancel FIELDS Frame Control Two byte value for the Frame Control field The format is byte0 bytel See Frame Control sub command for details Duration Two byte value for the Duration field The format is byte0 bytel Bit 15 must be 0 for this frame RA Receive Address The RA field contains an IEEE MAC individual or group address of the immediate recipient station for the information contained in the frame body The value is selected from one of the addresses defined with the Address command BSSID This field provides a unique identifier for the BSS It is of the form of an IEEE MAC address In infrastructure BSS mode this value is the
15. beginning of the subroutine is defined as the location of this command The subroutine name is the argument Subroutines are called from f then dec Loop wait for frame wait for trigger collide with frame and multiwait for frame commands Subroutines should be included at the end of a sequence file or at least after an eot statement so that they cannot be executed directly The sequence interpreter will generate an internal error if a subroutine is reached without being called EJ Subroutine m Subroutine Name sub0 Lex Cancel FIELDS Subroutine Name This field defines the name of the subroutine This name is used as a defined location that can be referenced elsewhere in the sequence The name can contain any alphanumeric character plus and The first character must be an alpha character and the name must be at least 3 characters VeriWave Inc All rights reserved 127 WaveTest User s Guide Time Marker This command is used to set a future time marker that can referenced in the timeout values of collide with frame wait for frame and multiwait for frame commands The time marker is referenced by setting the timeout value to 0 in these commands The marker mechanism is generally used for denoting fixed points in time at which specific activities must be performed such as sending frames An example is that of sending a beacon frame at fixed intervals In this case the time marker command is used
16. bytel NOTE Valid byte mask values are Wildcard matches any byte value If there is only a single the whole field is matched VeriWave Inc All rights reserved 113 114 WaveTest User s Guide XX Matches on the byte value XX The field is ignored It should not be coming out and thus a match is not attempted address 1 address2 address3 These fields match the first three addresses fields of the 802 11 frame The value s are selected from one of the addresses defined with the Address command With a Timeout of This field allows a timeout value in usec to be specified After the specified time if the frame has not been matched the sequence control will be directed to the location specified by the Goto Label If the timeout value is set to 0 this will indicate that the time set by the 7 me Marker command will be used as the timeout value If the time set by the Time Marker command has already passed when this command is evaluated control will immediately be sent to the Goto Label location Goto Label This field is used to specify the location in the sequence to which control will be transferred if a timeout occurs The location must a defined label or subroutine name Affect on log file Complete command inserted in log file at estimated send time VeriWave Inc All rights reserved WaveTest User s Manual Comment This command places a comment in the sequence file comment commen
17. clear See IFS Values command for explanation of tx defer value Body The body field contains a hex value in byte format byteO bytel byte2 The definitions of the bytes are shown in the table below Table 7 Authentication Body Data Number of Octets Information Format 2 Authentication Algorithm b0 b1 Number 2 Authentication transaction b2 b3 sequence number 2 Status Code b4 b5 3 Challenge Text 10 length value Double clicking on the body field brings up the following data form This form can be used to fill out the body field VeriWave Inc All rights reserved 75 76 WaveTest User s Guide Authentication Algorithm Number o Open System A Authentication Transaction Sequence Number i A Status Code p Successful E 1 Challenge Text ASCII A Cancel Affect on log file Complete command inserted in log file at estimated send time VeriWave Inc All rights reserved WaveTest User s Manual Beacon Generate a beacon frame Eg Beacon Frame m Beacon Frame Control Duration BSS ID Seq Num Ctrl Body 20 00 tzt E addrs mm addrs fany_ addrs fuser specified fea fe ed fe ed fe e Seq Num 0 Frag Num Ctrl user specified J Fragment Num mn F auto insert timestamp error FCS obey defer Cancel FIELDS Frame Control Two byte value for the Frame Control field The format is byte0 bytel See Frame Control sub co
18. immediately preceeding subroutine name VeriWave Inc All rights reserved 117 WaveTest User s Guide EOT End of Test 118 This command places an End of Test command in the sequence file This causes the currently executing sequence to terminate This command can by placed anywhere in the sequence where the sequence needs to be terminated An End of Testis implied as the last command in any sequence The following dialog is displayed when this command is selected E End Of Test This stops the currently executing test sequence ox anal VeriWave Inc All rights reserved WaveTest User s Manual If then We should probably call this If then else This command defines a If then decision construct The value of a variable is compared to the value of another variable or constant If the comparison is TRUE sequence control will go to the specified label or subroutine name If FALSE sequence control will go to a different label or subroutine E If then call subroutine m Variable Variable2 Jany_addrs 4 J any_addrs Ni When TRUE Goto When FALSE Goto E Lex Cancel FIELDS Variable 1 Variable 2 These fields define the variables to be compared Variables that have been defined using the Set Variable command or are pre defined internal variable are given the dropdown list Variable2 may be a constant integer value Comparison Operator Select from the valid compa
19. inter AP and other complex situations This can be critical for testing advanced switching architectures and location based products Extensive traffic generation Any 802 11 frame with any data value legal or illegal can be generated For example a frame with a CRC error can be programmed and generated in a repeatable way There is also control of other variables of 802 11 based equipment such as channel data rate and transmit power level A unique raw frame command allows the creation of any possible frame and even new protocols with it any combination of data can be sent over the air VeriWave Inc All rights reserved WaveTest User s Manual Interactive testing Each Test Point can be programmed to perform a complex interaction with a Device Under Test The Test Point can match the 802 11 protocol handshakes just like a station or access point interacting with the DUT in a programmable and flexible way Coordinated interference generation A Test Point can play the role of precise interference generation for a test A Test Point can be programmed to collide with particular frames or to act as a random source of interference In both cases the interference is coordinated and synchronized so the exact scenario can be run repeatedly with consistent results An example of this interference could be to interfere with ACK frames from a particular client thereby testing the robustness of the equipment to dropped frames Easy t
20. the information as possible Company name Technical Support I nformation Contact information where the employee can be reached Person Phone E mail Description of the problem Provide a detailed description of the problem including at what point it occurred in the program 6 VeriWave Inc All rights reserved WaveTest User s Manual Technical Support Information Error messages Describe any error messages that display including and User interface the error name and number If possible include a issues screen shot of the error message or interface issue to speed diagnosis of the problem v To create a screen shot simultaneously press Alt Print Screen To paste the captured image into a document simultaneously press Ctrl V For issues that occur during the execution of a test please also complete the following steps 1 Develop a shortened test that shows the questionable behavior if possible The smaller the example the easier it will be to re create and communicate about the issue 2 Run the test as usual 3 After completion of the test generate a diagnostic log file by selecting Generate Diagnostic Log from the View menu In the dialog box enter the name of the diagnostic log file This will create a log file that captures additional information that is useful for debug and analysis purposes 4 Since the diagnostic log can be quite large contac
21. to remove the WaveTest program and all of its components To uninstall the software Step 1 Step 2 Select the Uninstall WaveTest entry in the WaveTest program submenu This will bring up the uninstaller A confirming dialog box will be shown first Click Yes to uninstall the software All files installed by the WaveTest installation program will be deleted and the registry entries will be removed At the end of the uninstall process a dialog box informs you that the process is complete Click OK to dismiss the dialog box Installation problems If you encounter problems during the installation try one or more of the following Close all software programs turn off the computer then turn it on again and attempt the installation again Close any virus protection programs that may be running on the computer Uninstall the software using the process described above and then repeat the installation procedure OVeriWave Inc All rights reserved WaveTest User s Manual Verifying the installation It is recommended that a simple test be performed to verify that the software and hardware installation completed successfully Before performing this test Atleast one Test Point must have been installed connected and powered up as described above The WaveTest software must have been installed as described above A DHCP server should be present on the same LAN as the Test Point s and configured to respond to re
22. 1 Hardware setup oett UR ee AE EE EEE OS DRE FEE REFER DX URR T CES PER 21 Unpacking AM EM EE 21 Positioning Test Points on hr eR FR OR DOR OT CAR LE OU ALTRE VER ORE eRe To 22 Connecting antennias and cables 2 n onte mote bee Ie od IER e Ree D hones 22 Software Inst ll tioris 5 6 5 onem deo o pron e OE EP e EDO e c eg cO E Erga a 26 Before installing the software 5 netto e PRU e D OP bee eee pe X Re X RIPE ed 26 Installing the software from the CD ROM eseseseeeeeseeeeeene nete nennen emen enne tren nnen reiner nne trennen 26 Uninstalling the soft ware ss a eneen r rehe ene RE e p DOCE ERE i ED PRU CREE ESL X EE ERE e o ed 28 Installation problers 2 61 t i ER Dott eie EHE RED DR U De E EC b ore DR Rec RE POE IRE 28 Verifying the install ations ttr eI E IPRC D ER DRE DRE e He E 29 Troubleshooting the Installation s 3 21 3 2 090 teet hee U e d REM Rede e er sob RO ERR 32 Chapter 5 Sequences eo onm om De D OD I rc be c E ODER EE eiae AE ESSE 35 Description of Sequences enire itea iein aa eee ene ide dir eene Erie edente ene T er eae den ete edere eo deci 35 Types of commands ie e tee lee eredi e een teinte ree cep ete Rae Le rer ade S Ue ee oL SEA 35 Creatine a sequence ses ee eer treat tu ea enres e b e ge eret ee Une ditto de ens eoe eee POR 36 Setting defaults ciiin EEPOP ES 36 Set address vanables dm eo eese rede eerie e ed e redde ede empto Pre SAE RA 39 Initial
23. D e tei ge P Ore e e CREE ra 62 Data Frame A ddresses eG e E D EHE EDD ERREUR ERR reete eo Per e tuat 63 Frame Transmission Commands isisi doge E e poaa HOD EO Te UD Ha 64 2 VeriWave Inc All rights reserved WaveTest User s Manual PC qu M M 64 ASSocI tion Request x e fot ideni tenti ot ei e dere Ee oe tee oi tei HE e estie pee dentes 66 ASSOCIATION Respoltlsei endete deem te tent oen eee fie Oni tete tesi UR D et eb EE 69 dpt Emm 72 Authenticate eire nre e e ERREUR o e tmi e dn ER RACE E He ERE ERR EE E eee te 74 BG COM ges sic trc m er OPERE PU DOR REGE DUREE D Sce RR RC REEF EVER LER casa UE A AE A R TI CE Ack CE Ack tC E Poll 5 icone rion Pon e D tse upon E EC a E ODER E En EDU 80 CF End CECEnd tC E ACGKE inh ep ee Ee Fat ep a BU rp EO i n e ro DECRE eS 82 S dud 84 lE 86 Data Data CF Ack Data CF Poll Data CF Ack CF Poll oo ee ceeeeesseceseeeenseceereeeseeceeeeenaeceseeesaeceeneesaeeeeee 87 D authenti cate etn ineo edere dr eo di ta t ni ID Eb o preci 89 Dis ssoClatIODS 45 eaten e re o IR o FOEDE LO v Bon EDU c tr e D ER HET mente 91 Null itai tentat tekst e E PR RH OE EEEE E Dei aUo d ere E E E sua eae 93 Probe Request opc eR OUI ee DR p C RO RO SH Pt tere tp peel 95 Probe Response etse eoe gei e eidem adiit atu cred teg erede ster e et 98 IAE ES 101 RAW nnna re n ea eaa aN EEE Eae EEE e TAr a a et er petat rte testes rn dec me RAE 103 Rea
24. EEE MAC address In infrastructure BSS mode this value is the MAC address of the AP The value is selected from one of the addresses defined with the Address command Sequence Control Fields These fields are used to set the 16 bit Sequence control fields See the Sequence Control Sub command for details Body The body field contains a hex value in byte format byteO bytel byte2 The definitions of the bytes are shown in the table below Table 6 Association Response Form Number of Octets Information Format 2 Capability Information b0 b1 2 Status Code b2 b3 3 Association ID AID 00 length value 3 Supported Rates 01 lt length gt lt value gt Double clicking on the body field brings up the following data form This form can be used to fill out the body field EJ Association Response Data Capability Information ooo 4 Status Code 0 Successful A Association ID 3 4 Supported Rates scs tt Lex Cancel Double clicking on the Capability Information field brings up an additional form for setting the capability information element Double clicking on the Supported Rates field brings up an addition form for setting the supported rates information element VeriWave Inc All rights reserved WaveTest User s Manual Error FCS Select this to force an FCS error to be generated with the frame Obey Defer Select this t
25. Ethereal The PCAP cap file described in the previous section can be exported for analysis using Ethereal The PCAP format only supports time resolution to 1 usec Therefore the results shown in the PCAP file may differ slightly from the log file because of rounding Report Generation 56 The information contained in the Counters window can be saved in report file for later use The report file is in plain text format To generate the report open the Counters window by clicking on the Counters Tab Then click on the SAVE button located under the 7estPoint Traffic Counters window Enter the name and location for the report using the save dialog box The following is an example of the report file VeriWave Inc All rights reserved WaveTest User s Manual Fri May 07 15 18 39 2004 WT 1000 Test Report Test Point Configuration Test Point Type PHY Type Group 1 WT 1000 802 11b Default 2 WT 1000 802 11b Default Page 1 Fri May 07 15 18 39 2004 WT 1000 Test Report Test Point 1 Counters AP Initial Test Sequence File C Documents and Settings VAssociate test Client TP1 vws C Documents and Settings VAssociate test Client TP2 vws ping txt AP Initial Test tx frames tx CIC errors tx ctrl frames tx mgmt frames tx data frames tx rsvd frames tx octets tx err octets tx ctr octets tx mgmt octets tx data octets tx rsvd octets rx frames IX CIC eITOIS rx ctrl frames rx mgmt frames rx data frames rx rsvd f
26. MAC address of the AP The value is selected from one of the addresses defined with the Address command Error FCS Select this to force an FCS error to be generated with the frame 82 VeriWave Inc All rights reserved WaveTest User s Manual Obey Defer Select this to cause the frame to defer transmission until there is no contention indicated The frame will be transmitted tx defer value after the channel is determined to be clear See IFS Values command for explanation of tx defer value Affect on log file Complete command inserted in log file at estimated send time VeriWave Inc All rights reserved 83 WaveTest User s Guide CF Poll Generate a Contention Free CF Poll frame This frame looks like a null data frame EB CF Poll Frame m CF Poll Frame Control Duration Addrs 1 Addrs 2 Addrs 3 Seq Num Ctrl Addrs 4 e8 00 tz any addrs any addrs any addrs user specified Hany addrs A Seq Num 0 Frag Num Ctrl auto reset E Fragment Num error FCS obey defer Cancel FiELDS Frame Control Two byte value for the Frame Control field The format is byte0 bytel See Frame Control sub command for details Duration Two byte value for the Duration field The format is byte0 bytel Bit 15 must be 0 for this frame addrs 1 addrs 2 addrs 3 addrs 4 These values are selected from one of the addresses defined with the Address command See the Data Frame Addresses sub com
27. N CVESR SE EVER EESR ERREUR ER PUR RES 144 Humidity oerte to e ee e oU ee ie Rin RE ERE ERE Rt 144 ATIttude 4 iir operit te EAE Dae o Dti e erp E DERE ED EIE Ero OUR E 145 Vibration randoms scis te t bee rod tati e meteo d Rc re eB ECRIRE PERROS 145 SHOCK qu ELE 145 lj ET 145 DC dri EE 145 Appendix idt erret e ber OE EDO erae p BLOOD Me e e DOC Decke ee ERE EDD TES 146 GIOSSaty cea re RO Deo e P T 146 4 VeriWave Inc All rights reserved WaveTest User s Manual Chapter 1 Introduction Structure of this manual Here is a summary of the structure of the WaveTest User s Guide Use this manual s Table of Contents to locate additional information of interest Introduction Chapter 1 provides an overview of how to use this manual a description of other documentation and how to contact technical support Description of the Equipment in the System Chapter 2 explains the hardware software and documentation included with the product Also this chapter explains the additional equipment that the user must supply for testing Theory of Operation Chapter 3 describes the VeriWave architecture and how the major components play a role This includes a complete description of the product features the user interface and basic test operation Installation and Connection Chapter 4 explains how to install the WaveTest software and how to set up the WaveTest hardware Test Sequences Chapter 5 explains the creation editi
28. Reason Code Data m E Reason Code Unspecified reason A Lex Cancel Error FCS Select this to force an FCS error to be generated with the frame Obey Defer Select this to cause the frame to defer transmission until there is no contention indicated The frame will be transmitted tx defer value after the channel is determined to be clear See IFS Values command for explanation of tx defer value Affect on log file Complete command inserted in log file at estimated send time VeriWave Inc All rights reserved WaveTest User s Manual Disassociation Generate a Disassociation frame E Disassociation Frame m x Disassociation Frame Control Duration BSS ID Seq Num Ctrl Body a0 00 tt E addrs E addrs any addrs user specified ot o0 Seq Num D Frag Num Ctrl user specified 4 Fragment Num 0 error FCS obey defer Cancel FIELDS Frame Control Two byte value for the Frame Control field The format is byte0 bytel See Frame Control sub command for details Duration Two byte value for the Duration field The format is byte0 bytel Bit 15 must be 0 for this frame DA Destination Address The DA field contains an IEEE MAC individual or group address that identifies the MAC entity or entities intended as the final recipient of the MSDU or fragment thereof contained in the frame body The value is selected from one of the addresses defined with the Address c
29. Test At the completion of a test sequence execution the WaveTest application generates a number of files that contain information about the just completed run By default all output files are put in the og win32 sub directory located in the VERIWAVE HOME directory c Program Files Veriwave Wavetest veriwave_home log_win32 Each file is named according the Test Point MAC address of the WT1xxx generating the information Error Reference source not found describes the individual files Table 1 Output Files Produced by WaveTest File Extension FileType Description VWS binary Veriwave counters file Used by the system to update the counter values vwr Binary Veriwave raw data file File containing the raw log information generated by a WT1xxx device VWS ASCII Veriwave sequence file This file uses the same base format as the sequence files used as input to the WaveTest system It contains all the event information collected during the test This file is processed to generate the log and cap files See the Sequence Command Reference for details on this file format log ASCII This is a text file that contains the exact same information that is displayed in the log window in the WaveTest application cap Binary PCAP format supports integration with Ethereal protocol analysis software Also used as an import export with other protocol analysis tools The Log File The log file is an easily readable listing of the resul
30. This field is an integer value specifying the low threshold in the range of 20 80 in units dbm The field can either be set directly or through the increment and decrement arrows This value must be a larger integer than the high value High This field is an integer value specifying the high threshold in the range of 20 80 in units dbm The field can either be set directly or through the increment and decrement arrows This value must be a smaller integer than the low value 138 VeriWave Inc All rights reserved WaveTest User s Manual Seed This command is used to set the seed value used in random number generation Setting this value allows for repeatable tests when random numbers are used to generate timing or data seed value JO Lex Cancel FIELDS Seed value This field contains an integer value The field can either be set directly or through the increment and decrement arrows VeriWave Inc All rights reserved 139 WaveTest User s Guide Set Variable 140 This command is used to define and or set the value of a sequence variable Variables can be either integers or hex strings Integers can be either decimal or hex values E set Variable m Set Variable name Variable value 1 Operator Variable value 2 o p oy p Lex Cancel FiELDS Variable Name This field defines the name of the variable The name can contain any alphanumeric character plus and The
31. Threshold and TX Power should be placed at the start of the sequence Two other commands IFS Values and Seed may also be set at the start of a sequence The default values for IFS values correspond to the 802 11 standard The Seed command is used in conjunction with random data generation If the seed is not set the seed value of one will be used Creating sequence commands Click the button for the command This brings up a screen that has fields for every parameter For a frame generation commands every field of the frame is presented for editing VeriWave Inc All rights reserved 39 WaveTest User s Guide user specified 4 Fragment Num 0 error FCS obey defer Lox Cancel E Data Frame m Data Frame Control Duration Addrs 1 Addrs 2 Addrs 3 Seq Num Ctrl Addrs 4 Payload Pattern 08 00 tt any addrs any adars fany_addrs fuser specified fany_addrs sfai ones 4 Seq Num Payload Size bytes o 1 Frag Num Ctrl Raw Data Every frame has the options of correct or errored FCS obey a user defined defer value and for setting the sequence control fields After the fields are filled in and the command is accepted the command is added to the sequence This command is then shown in the sequence window This process is repeated until the end of the sequence is reached Editing a sequence 40 Several operations are supported to allow the easy edit of test sequences including changing a c
32. Tx Rx data rate at the beginning of a sequence and can also be used to change the rate at any point in the sequence tx rx data rate 1 Mb s Ni Co Cancel FIELDS tx rx data rates Select the speed from the pull down values Values depend on the 802 11 specification a b g that is in use VeriWave Inc All rights reserved 135 WaveTest User s Guide IFS Values 136 This command allows the InterFrame Spacing IFS values to be defined EJ IFS Values m SIFS Value DIFS Value PIFS Value EIFS Value TX Defer Value uSec uSec ii uSec QJ e Lm uSec uSec abe ee IR RI E Min Random BackOff range o 3 Time Unit Max Random BackOff range o 3 Time Unit Lex Cancel FIELDS SIFS Value This field contains in integer value used to specify the short interframe space SIFS Values are in uSec DIFS Value This field contains in integer value used to specify the DCF interframe space DIFS Values are in uSec PIFS Value This field contains in integer value used to specify the PCF interframe space PIFS Values are in uSec EIFS Value This field contains in integer value used to specify the dextened interframe space EIFS Values are in uSec units VeriWave Inc All rights reserved WaveTest User s Manual TX Defer Value This field contains in integer value used to specify the amount of time to wait after a deferral before transmitting
33. VeriWave Inc All rights reserved 63 WaveTest User s Guide Frame Transmission Commands ACK Generate an Acknowledge frame uu Ack Frame m Ack frame control duration RA u4 00 00 00 any adds error FCS obey defer Cancel FIELDS Frame Control Two byte value for the Frame Control field The format is byte0 bytel See Frame Control sub command for details Duration Two byte value for the Duration field The format is byte0 bytel Bit 15 must be 0 for ACK frame RA Receive Address The RA field contains an IEEE MAC individual or group address of the immediate recipient station The value is selected from one of the addresses defined with the Address command Error FCS Select this to force an FCS error to be generated with the frame Obey Defer Select this to cause the frame to defer transmission until there is no contention indicated The frame will be transmitted x defer value after the channel is determined to be clear See FS Values command for explanation of tx defer value 64 VeriWave Inc All rights reserved WaveTest User s Manual Affect on log file Complete command inserted in log file at estimated send time VeriWave Inc All rights reserved 65 WaveTest User s Guide Association Request Generate an Association Request frame fi Association Request Frame m x Association Request Frame Control Duration BSS ID Seq Num Ctrl Body 00 00 t
34. WaveTest User s Manual Version 1 1 WaveTest User s Manual Table of Contents Table Of Contents ete e eT Utm UD Rte ER ERI dps 1 Chapter 1 Introd cti n iine aeo e ee sie e RB n EDD RO PER ROTE UH REO EEES 5 Str cture of this in nual do e ete D D RE e t EROR bhessees Gast e sE ARES 5 Howto use this guide eere D o qe RU D ep ge ep a I UO DERE REID HIR ER HREREE 5 Standard conyentlons ce Ot eee T RUFI ERE UD RE RE e ERU TR EERE 5 Technical Supports eR obe m ane e afe ce ode aee UU ree ted 6 Contact Information J 2 re tui ear IR D C Gm RERO EE e ER UD RS 6 Reporting proble enve aaeei e eden ed p eee eee det rer De ete dap denote Dee certe deae r Ea ede 6 Copyright and Trademark notices esses enne enne EE a teen neen Se EMA ESTEE rennen eene tenete 8 Chapter 2 Description of Equipment seseeeeeeeeeeeeeee eene enne nne nennen etes trennen ennt nn etre ne enne enne trennen enne 9 List of materials in the WaveTest System eeseseeeseeeeeeeeee eene enne ennetnen nein trennen ene te etes enne trennen enne 9 Hardware stehen Db On etd eq denen 9 Test Ports 25 oae me ettebeneeqamiga eden ede meae deque 9 Cable8 o sceptro edem ia e eee eH REQUE 11 Antennas aiio E e db eda ERI Debe e RD SER UE PR ERE 11 Power adaptors eere eec trennt rea eere gor egere epa Pee ca bete e e Dea ERA AR CERES 11 SOftWAIe 5 ia e ede etnia Ee dec rd rre te i te aee d a re D de eer td eee 12 Documentation e
35. a frame It is used in conjunction with the Obey Defer option on transmitted frames Values are in uSec units Pseudo Random Backoff When this button is selected a pseudo random backoff value will be used before attempting to transmit during the contention window If selected the value will be picked from the range specified by the Min Random Backoff and the Max Random Backoff Min Random Backoff This field is used to specify the minimum number of time units to wait before attempting to transmit The value of the time unit depends on the medium Max Random Backoff This field is used to specify the maximum number of time units to wait before attempting to transmit The value of the time unit depends on the medium VeriWave Inc All rights reserved 137 WaveTest User s Guide Rx Threshold This command is used to set the threshold for receiving packets Setting these values will cause all packets with RX power below the low threshold value or above the high threshold value to be ignored For instance setting the values to low 50 high 20 will cause only those packets with an RSSI value gt 50dBm and 20dBm to be seen and interpreted by the Test Point If a packet is not between the threshold it will not be passed for evaluation by commands like wait for frame collide with frame and multiwait for frame i Receive Threshold m x Low 80 dbm High 20 dbm Cox Cancel FIELDS Low
36. ad Pattern This field is used to define the data payload The drop down list allows the following patterns to be selected All ones All zeros Ones and zeros Byte count up Byte count down Random Raw data Auto reset Auto increment Auto rollback Payload Size This field is used to define the data payload size The value is in terms of bytes Legal values are 1 2500 Error FCS Select this to force an FCS error to be generated with the frame Obey Defer Select this to cause the frame to defer transmission until there is no contention indicated The frame will be transmitted tx defer value after the channel is determined to be clear See IFS Values command for explanation of tx defer value Affect on log file Complete command inserted in log file at estimated send time 88 GOVeriWave Inc All rights reserved WaveTest User s Manual Deauthenticate Generate a Deauthenticate frame E Deauthentication Frame m x Deauthenticate Frame Control Duration BSS ID Seq Num Ctrl Body cO DO tt E addrs E addrs any addrs user specified ot o0 Seq Num D Frag Num Ctrl user specified 4 Fragment Num 0 error FCS obey defer Cancel FIELDS Frame Control Two byte value for the Frame Control field The format is byte0 bytel See Frame Control sub command for details Duration Two byte value for the Duration field The format is byte0 bytel Bit 15 must be 0 for this frame
37. alue will not be logged High This field defines the high RX threshold value Units are in dBm below Odbm A smaller number equals a stronger signal 122 OVeriWave Inc All rights reserved WaveTest User s Manual Log Value This command enters the specified value into the log when it is executed log value Lex Cancel FIELDS Log value This field is used to enter an integer value to be entered into the log The value can be either a constant or variable reference Address variables or hex strings are not allowed VeriWave Inc All rights reserved 123 WaveTest User s Guide Multi wait for Frame 124 This command sets up a sequence control that allows the user to wait for up to 8 different frame patterns simultaneously Each pattern match is specified in terms of a byte mask and has in independent branch operation The first pattern to match will cause flow execution to be directed to the goto location and will complete the execution of the multiwait command t3 Multi Wait for Frame Joe Multi Wait for Frame Wait Mask 1 Goto i Ai Wait Mask 2 Act 4 Wait Mask 3 Goto Wait Mask 4 4Zet y Wait Mask 5 4Zete 4 Wait Mask B fo 0 Goto rt Wait Mask F fo Goto Wait Mask 8 Goto pM Goto 4 Cancel FIELDS Wait Mask 1 8 This field specifies a byte mask correspondi
38. and connected on the Ethernet segment The Test Points will be identified on the screen by their MAC addresses Step 3 Select the first Test Point in the Group TestPoint Display and Click on the Open button below the Group TestPoint Display This will bring up a file browser VeriWave Inc All rights reserved WaveTest User s Manual Step 4 Step 5 Step 6 Step 7 Step 8 t3 Open File m Create Dir Delete File Rename File C Documents and Settings Carl Brown 1 F 4 segil vws Selection C Documents and Settings Carl Brown seqt ws Cancel Navigate to the sequences sub directory of the WaveTest home directory default C Program Files VeriWave WaveTest veriwave_home sequences and find the file Testi nstall vws Select this file and click OK The contents of the Testi nstall vws file will now be displayed in the TestPoint Sequence window Repeat steps 3 4 each Test Point in the Group TestPoint Display Now select the Default group from the Group TestPoint Display Next click on the Start button This will cause the selected Test Point to begin executing the sequence The status for the selected Test Point will go to running while the sequence is executing When the sequence terminates click one of the Test Points shown in the Group TestPoint Display Now check the values displayed in the Test Point Traffic Counters The 7X frames counter should read 10 Repeat step 7 above for ea
39. ard to reproduce can now be brought from the customer site back to the design lab for more extensive analysis This can be done economically with the record replay capability of our Test Points This can reduce the number of customer site visits by expensive technical personnel and eliminate the personnel costs associated with time waiting on intermittent issues Components of the System Test Points Each Test Point is a sophisticated piece to test equipment built for high accuracy and reliability This complete control of all paths involved in the generation and logging of frames gives a level of accuracy that cannot be matched with off the shelf solutions The internal electronics of the Test Point are shield from by a heavy gauge steel enclosure with minimal apertures for leaks into the test environment The RF portion of the electronics are shielded twice This minimizes the chance that the test equipment can introduce unwanted RF signals that could disturb a test Programmable Each Test Point is fully programmable and interactive allowing it to act as any type of 802 11 device including access points and client stations VeriWave Inc All rights reserved 19 20 WaveTest User s Guide Upgradeable Test Points can be upgraded to support new interfaces and test capabilities preserving your investment over multiple generations of protocols Radio generate frames log frames and generate interference Connectors Softwa
40. ariety of different ways The WaveTest software provides a summary og view in the Log Window This log view is principally intended to show only the test results In addition a much more detailed version of the logged information with all of the different items listed above being included is generated to a file For VeriWave Inc All rights reserved 53 54 WaveTest User s Guide additional information see the section Output Files Generated by WaveTest below Enabling and disabling logging By default logging is enabled when a sequence starts executing on a Test Point The user may not however wish to capture events and data into the log for the entire duration of the test a long test run may generate a very large log file and impose a significant burden on the user in terms of locating the specific items that are of interest Therefore the WaveTest sequence language provides a means of disabling and re enabling logging Logging may be disabled by clicking the Log Control button This will bring up a dialog box that allows the user to turn off logging de select the start button A Stop Logging entry will be displayed in the Sequence window Subsequent to the execution of this entry logging will be turned off and no more items will be stored to the log Logging may be re enabled at a later point in the sequence by again clicking the Log Control button and turning logging on using the resulting dialog box This enters a Sta
41. ata rate does not automatically adapt to the data rate followed by the DUT and hence must be explicitly indicated using the data rate sequence command Setting the receiver thresholds The WaveTest system is capable of rejecting received packets or signals that fall outside a user specified range of received signal strength This facility can be used to filter out unwanted packets or for special test scenarios However if the acceptable range of signal strengths is not properly specified tests may fail because of lost receive packets To avoid this problem the expected receive signal strength at the antenna port of the WT1xxx Test Points should be monitored prior to creating or loading a sequence and the test sequences can then be modified appropriately to set the acceptable signal strength range Setting the transmit power The transmit power of each Test Point in the system can be adjusted to control the signal strength at the RF port of the DUT This is intended to allow the testing of signal strength dependent effects on the MAC protocol The Tx Power sequence command is provided to allow the transmit power level to be adjusted on a packet by packet basis as described previously in Chapter 4 The transmit power levels should be adjusted properly to ensure that the correct power level is received by the DUT Dealing with interference In an open air environment using the supplied antenna on the WTxxx Test Points it is possible to
42. ating Sequences with Test Points Typically each Test Point is assigned a separate sequence to be executed The user is referred to Chapter 5 for more information on sequences as well as details on how they can be created and edited v It is possible to assign the same sequence to more than one Test Point The WaveTest system does not place any restrictions on the contents of the sequence being run by each Test Point However note that running identical sequences on multiple Test Points at the same time may result in unexpected test results VeriWave Inc All rights reserved 47 48 WaveTest User s Guide To view the sequence that has been assigned to run on a given Test Point click on the Test Point in the Group TestPoint display The sequence associated With the Test Point will display in the sequence window It is highly recommended that you save sequences prior to executing them This is done by selecting the sequence in Group TestPoint display and clicking on the Save button and following the prompts to enter a suitable file name and directory Once saved sequences may be reopened assigned to new Test Points or edited in another application Once a new sequence has been created using the WaveTest software or an existing sequence has been opened from a file as described in the previous chapter it must be associated with a Test Point prior to execution To associate a sequence with a Test Point first select the sequence from
43. cations that the system is useful for and a complete list of the features of the product Overview of the WaveTest System 14 VeriWave test equipment is designed for the unique challenges of wireless LAN verification WaveTest is a powerful multi point system that provides an extensive capability to test 802 11 based equipment WaveTest allows you to streamline your validation efforts and lower your total development and support costs WaveTest can quickly expose product issues using maximum rate loading random traffic generation and other stress tests WaveTest gives development engineers a powerful tool to set up analyze and debug the most difficult scenarios This allows tackling of complex validation issues with confidence The VeriWave architecture is comprised of multiple intelligent Test Points and a central controller PC The Test Points are completely synchronized allowing the separate units to work in unison to perform a complex test Each Test Point is a sophisticated and precise piece of test equipment The central controller PC provides the capabilities to develop control and monitor tests The Test Points are connected to the controller PC by an Ethernet network VeriWave Inc All rights reserved WaveTest User s Manual mE RE A PR Pg P4 i a Eus p mmm m uEEERN NC gt Moe i EE EN eee Test P
44. ce One or more Test Points have malfunctioned fails to produce Power off all Test Points and then power on expected results again Check cables and connections Verify that SMA RF connectors on Test Points are connected to either an antenna or a 50 ohm load e g a device under test or a power divider Verify that power adapter is functioning properly disconnect and reconnect it Control computer or WaveTest software has malfunctioned Exit and restart WaveTest software Exit WaveTest software restart computer and then restart WaveTest software VeriWave Inc All rights reserved WaveTest User s Manual Chapter 5 Sequences Description of Sequences A sequence is an ordered set of commands that are executed by a WaveTest Test Point during a test A sequence is associated with a specific Test Point during a test The sequence specifies the complete behavior of the Test Point during a test The sequence provides the personality for a Test Point Sequences can be written that make a Test Point log all the RF activity of a test provide a specific load to a DUT perform a specific protocol interchange and provide specific controlled interference to a test A Test Point can behave as an Access Point a client station a collection of stations a sniffer or other devices depending on the sequence that it executes Sequence commands can cause a specific 802 11 frame to be generated control the informat
45. ch of the other Test Points displayed in the Group TestPoint Display VeriWave Inc All rights reserved 31 WaveTest User s Guide If the number of Test Points shown in the Group TestPoint Display sub window does not correspond to the actual number of Test Points installed or the results of running the Testl nstall vws sequence do not match those expected then an installation error has occurred Go to Troubleshooting the installation below for some suggestions on solving the problem Troubleshooting the Installation This section describes some possible problems that may be encountered when installing the WaveTest hardware and software and suggests some solutions that may resolve these issues Contact VeriWave Technical Support for further assistance if none of the recommended solutions resolve the problem or if the specific symptom is not included in the troubleshooting chart below Troubleshooting Chart Test Point LED Indicators Symptom Cause Solution Green Power External power supply is disconnected or has failed LED is off Check connections between Test Point external power adapter and wall outlet Verify that wall outlet is energized with AC power Substitute power adaptor from another Test Point to check if the original power adapter has failed If the problem cannot be isolated then the external power adaptor may have failed Contact VeriWave Technical Support for assistance Link LED on Te
46. des the following items e WTI1xxx Test Point e Timing cable e Power adaptor and power cord e Omni directional Antenna e WaveTest CD e WaveTest Installation and QuickStart Guide After you have received your WaveTest system a quick check should be completed to make sure you have received all the components of your system Contact our technical support if you find any component of your system is missing A complete description of the each of these components is provided in the rest of this chapter Hardware Test Points The Test Points form the heart of the WaveTest system Each Test Point is a sophisticated and powerful piece of networking test equipment Each Test Point has been engineered to provide extremely high precision timing for the generation and logging of 802 11 tests Each Test Point has been carefully engineered to absolutely minimize any emission that might affect the results of a test There are minimal openings in the metal skin of the Test Point to minimize or eliminate any extraneous RF emissions from the Test Point VeriWave Inc All rights reserved 9 WaveTest User s Guide Front Panel Connections Antenna LED A green colored LED that indicates that traffic is being sent or received on the antenna Antenna connector An SMA connector that is used to connect the antenna to the Test Point This connector can also be used for cabled test operation Other antennas can also be attached to the connec
47. ditional requirements may be necessitated by the WaveTest system depending on the release level and the options installed Consult the release notes for more information Installing the software from the CD ROM The installation may be terminated at any step without harm to the system In addition the application can be uninstalled if required To install the WaveTest software 26 VeriWave Inc All rights reserved WaveTest User s Manual Step 1 Step 2 Place the CD ROM in the CD ROM drive Installation should start automatically If installation does not start automatically select Run from the Start menu and type x X wavetest version installer exe where x stands for the drive letter of the CD ROM drive in the dialog box and click OK The following dialog box will appear This will install Veriwave Wavetest Do you wish to continue Step 3 Step 4 Step 5 Step 6 Click OK to proceed with the installation A welcome window will be presented Click Next gt gt to continue with the installation A license window will appear Review the terms of this license and Click accept the agreement if they are acceptable and click Next gt gt Otherwise click Cancel to terminate the installation A window will be displayed that allows the destination directory to be changed If the target directory for the installation program is to be changed select a new disk and directory Thi
48. dividual address that identifies the entity from which the transfer of the MSDU or fragment thereof contained in the frame body was initiated The value is selected from one of the addresses defined with the Address command 104 VeriWave Inc All rights reserved WaveTest User s Manual BSSID This field provides a unique identifier for the BSS It is of the form of an IEEE MAC address In infrastructure BSS mode this value is the MAC address of the AP The value is selected from one of the addresses defined with the Address command Sequence Control Fields These fields are used to set the 16 bit Sequence control fields See the Sequence Control Sub command for details Error FCS Select this to force an FCS error to be generated with the frame Obey Defer Select this to cause the frame to defer transmission until there is no contention indicated The frame will be transmitted tx defer value after the channel is determined to be clear See IFS Values command for explanation of tx defer value Body The body field contains a hex value in byte format byteO bytel byte2 The definitions of the bytes are shown in the table below Table 13 Reassociation Request Frame Body Number of Octets Information Format 2 Capability Information b0 b1 2 Listen Interval b2 b3 6 Current AP Address b4 b5 b6 b7 b8 b9 3 SSID 00 length lt value gt 3 Supported Rates 01 lt length gt lt value
49. e Auto rollback Hold the fragment number at the previous value Used when re transmitting failed frames e User specified Allows a specific fragment number to be set using the Frag Seq Value field Frag Seq Value Fragment This field is used to set the fragment number when the Sequence Control is set to user Specified 62 VeriWave Inc All rights reserved WaveTest User s Manual Seg Control Seg Seq Ctrl This field controls how the sequence number is generated for the frame Possible values are e Auto reset Causes the sequence number to be reset to 0 e Auto increment Increments the sequence number by 1 e Auto rollback Hold the sequence number at the previous value Used to keep the sequence number constant during fragmented sequences and when re transmitting failed frames e User specified Allows a specific sequence number to be set using the Seg Control Value field Seq Control Value Sequence This field is used to set the sequence number when the Seq Contro Seq is set to user specified Data Frame Addresses The 802 11 specification defines four address fields for data frames The content of address fields depend on the value of the DS bits and are shown in the table below Table 4 Data Frame Address Field Contents ToDS From DS Address 1 Address 2 Address 3 Address 4 0 O DA SA BSSID N A 0 1 DS BSSID SA N A 1 0 BSSID SA DA N A 1 1 RA TA DA SA
50. e WaveTest system carries out extensive logging of test results in addition to displaying counts of frames errors and events on the screen The test results may be displayed on the screen saved to files and reloaded for later inspection Logging in the WaveTest system The WaveTest system creates and updates a results database during the execution of any test This database contains a detailed record of everything that was performed or observed during the process of running the test A separate database is created for each Test Point Logging information to the database may be enabled or disabled under user control via special sequence commands Note that the results database is only generated if a Test Point is actually executing a sequence if no sequence is running on a Test Point the data it receives is ignored and not entered into the database log The database log holds a variety of different data items Transmitted packets and other data Received packets and other data Sequence execution information line numbers timeouts etc User defined values Timestamps Trigger events Configuration information Logged information is useful both for analyzing the results of a particular test i e the responses of the DUT to the signals generated by the Test Points as well as for ensuring that the test was properly created and set up and that it executed as desired The database maintained by each Test Point may be accessed in a v
51. e generation ditor cte tee detiene He e E tete enews 17 Easy to use software for fast and efficient test setup enne 17 Real time display of important statistics sessssssssessesseseeeeen eere enne en rennen enne nns 17 GConhigurable trigSermg i on peo n Pr Pe E e DUE pa Eb D e o Se UR ER ee 17 Complete and large capacity log gms eei eee n p eee ele Het iiem tiere ite detta 17 Coordinated System Loading os 5 iit tert te odere ice epe titm Hec Price Ub eite ve ERA 18 Coordinated Interference nean tren BRE o e e e ORE PRU e reped 18 Benefits of the System tes pa Pe DOR LE PC e lei DUE eae Eten rie npe EIE eto etat 18 More thorough testinde ee ERE e pero trate ei pn a Sep Da tot Dein e PR eh Epp 18 INDur MEE 18 Fast nd conyententset p 3 2 0 onem ed o e Ero n PU e pn a EU ep PO PD e PU eR 18 Tackhng complex features open ro reb i ea D BUR EE Po A OC Esas 19 Improve organizational efficiency 5 eere ra e pi D BUR Ee S AEE R ea 19 Efficiently bring customer issues back to factory for analysis esee 19 Components of the Systemsin dee entia tton dle be oeste ede t Uode aee eoe eee ee dd eee ste cede Pare 19 VeriWave Inc All rights reserved 1 WaveTest User s Guide Test Points need have Sed uuE een been ted ace ete Aad eee eee 19 Software Interface oett ces tet tete bete mee intei orte timebo am ie fue t pepe edg 20 Chapter 4 Installation and C nn ctlon niri eei tee rite Detienen eor 2
52. ed tx defer value after the channel is determined to be clear See IFS Values command for explanation of tx defer value Affect on log file Complete command inserted in log file at estimated send time VeriWave Inc All rights reserved WaveTest User s Manual Null Generate a null frame E Null Frame m x Null Frame Control Duration Addrs 1 Addrs 2 Addrs 3 Seq Num Ctrl Addrs 4 48 00 ft 7f any addrs fany_adars fany_adars fuser specified fany_adars 4 Seg Num Oo Frag Nurn Ctrl user specified 4 Fragment Num error FCS obey defer FIELDS Frame Control Two byte value for the Frame Control field The format is byte0 bytel See Frame Control sub command for details Duration Two byte value for the Duration field The format is byte0 bytel Bit 15 must be 0 for this frame addrs 1 addrs 2 addrs 3 addrs 4 These values are selected from one of the addresses defined with the Address command See the Data Frame Addresses sub command section for more information on selecting proper values for these fields Sequence Control Fields These fields are used to set the 16 bit Sequence control fields See the Sequence Control Sub command for details Error FCS Select this to force an FCS error to be generated with the frame VeriWave Inc All rights reserved 93 94 WaveTest User s Guide Obey Defer Select this to cause the frame to defer transmission until there i
53. empted With a Timeout of This field allows a timeout value in usec to be specified After the specified time if the frame has not been matched the sequence control will be directed to the location specified by the Goto Label f the timeout value is set to 0 this will indicate that the time set by the 7 me Marker command will be used as the timeout value If the time set by the Time Marker command has already passed when this command is evaluated control will immediately be sent to the Goto Label location Goto Label This field is used to specify the location in the sequence to which control will be transferred if a timeout occurs The location must a defined label or subroutine name VeriWave Inc All rights reserved WaveTest User s Manual Wait for Time This command forces a delay in the sequence execution i Wait for Time Sequence m Wait for 2 usec Ni Lex Cancel FIELDS Wait for The first field specifies the number of units of delay or wait for The second field defines the delay units The delay units are described in XX Delay Unit Explanation Symbol time from end of prev frame Delay for the specified number of symbol times usec Delay for the specified number of usecs SIFS from end of prev frame Wait for specified number of SIFS periods DIFS from end of prev frame Wait for specified number of DIFS periods PIFS from end of prev frame Wait for specif
54. en pee PU ERE petente eem rex et E Eua 133 PNGGTESS e cons 133 Grund M 134 Data R Cc H cones 135 MAUI 136 R Threshold p M 138 CEC ses 139 Set Variable e ORE ERREUR OEC NOE EE RRCREO RO REB EET 140 ibd ooo 142 Sp ifiCations sas psd eds aes ERR ne EOD eI PD e QU DE T aab 143 System Requiremen ts i EG Re ER E ELE DERE E e OSEE Ee eap 143 Connection to host COIDpU ter eine ne eme RU RECEN E e e ELE Pe ERR 143 Supported host computers configuration essere nennen eene ener enee tren nenn eene trennen ente ener 143 Operating System r T ea PR D D UHR RE ERO REGERE RR 143 Bh npc T EEUU 143 VeriWave Inc All rights reserved 3 WaveTest User s Guide Power Consurpti n ei on eR i eet oat ensi io anre eife ei pscen i ies 143 Radio SpecifiCatioD see Dee ees tet tite ote ce netus olini fefe te e Eid reet 143 hdgdldni D EE 144 esu MEER 144 Physical Characteristi63 ies qe ite eile e ae t percita ieu erre pt 144 Environmental 2 2 nonni POI EGER DOCU ERRARE EPUM EI E aE E DDR CERE Ee Be RO 144 Tempera treisi im s e RO ERE DER TRR ERE ESSERE Ee DX OR TREE ER
55. encounter various degrees of interference from other WLAN devices such as access points and clients If the possibility of interference is not taken into account during testing the tests may fail or provide erroneous results The WaveTest system provides several facilities to deal with or avoid such interference when open air testing is required One such facility is the ability to set acceptable power ranges on received packets If the signal strength presented by the DUT at the WT1xxx antenna is substantially different from that presented by the interferer then setting a OVeriWave Inc All rights reserved WaveTest User s Manual relatively narrow range of acceptable receive power with the received power from the DUT falling into the middle of the range can serve to exclude the interferer while still receiving packets from the DUT Obviously this will not prevent the DUT from receiving packets from the interferer only the WT1xxx receiver can be controlled in this fashion This capability is particularly useful when the DUT is much closer to the WT1xxx Test Points than the interferer The timeout and looping capability of the sequences run on the Test Points can also be used to deal with interference If a frame that is being waited for during the execution of a sequence is not received due to collision with an interferer it is possible to time out and then automatically restart the specific portion of the test that has been interfered wi
56. entation WaveTest User s Manual This document is the complete manual for the use of the WaveTest system This manual is included on the CD WaveTest Installation and QuickStart Guide This document is included with the WaveTest product It contains information for quickly setting up and using your WaveTest system Sequence Command Reference This document describes the sequence command language used by the WaveTest system This document is included on the CD 12 VeriWave Inc All rights reserved WaveTest User s Manual User supplied There are several pieces of equipment that are required for test operation that are not supplied with the WaveTest system Windows based PC The requirements for this PC are e Microsoft Windows XP e 256 MB or more RAM installed e 50 MB or more free disk space e CD ROM or DVD ROM drive e Ethernet interface with TCP IP networking software Ethernet network The Test Points and PC need to be connected by an Ethernet network This network can be shared with other applications but we suggest that they be placed on a separate LAN segment using a switch or bridge to provide traffic isolation VeriWave Inc All rights reserved 13 WaveTest User s Guide Chapter 3 Theory of Operation This chapter explains the capabilities of the WaveTest system It briefly covers an overview of the system the characteristics of the system the benefits the components that make up the system the appli
57. equence file This allows for various filtering conditions to be set and changed throughout the sequence E3 Log Control J A Logging On Logging Off Filter RF Anomalies On Filter RF Anomalies Off Filter Using RX Low Threshold Low 80 3 dbm Filter Using RX High Threshold High 20 z dbm Lex Cancel FIELDS Logging On Off Selecting the Logging on button will cause the logging to be enabled at the current point in the sequence Selecting the logging off button will cause the logging to disabled at the current point in the sequence Filter RF Anomalies On Off Selecting the on button will cause the system to start logging RF ANOMALY events at the current point in the sequence Selecting the off button will cause the system to stop logging RF ANOMALY events at the current point in the sequence By default RF ANOMALY events are logged VeriWave Inc All rights reserved 121 WaveTest User s Guide Filter Using RX Low Threshold Selecting the button will cause the logging to be based on the received signal strength Frames received with and RSSI value below the Low value will not be logged Low This field defines the low RX threshold value Units are in dBm below Odbm A larger number equals a weaker signal Filter Using RX High Threshold Selecting the button will cause the logging to be based on the received signal strength Frames received with and RSSI value above the High v
58. er be placed on a separate LAN segment using a switch or bridge to provide traffic isolation 2 Connect the timing cables f more than one Test Point is being used in the WaveTest system connect their RJ 45 synchronization jacks labeled Multi Test Point Sync 1 and 2 in a daisy chain using the supplied shielded twisted pair 25 meter cables Additional details on connecting the synchronization ports are given below Use only the timing cables supplied with the Test Points Contact VeriWave Technical Support if test setups requiring longer or shorter cables are desired 3 Connect the antennas or RF cables f the supplied omni directional antennas are being used with the Test Points connect the male SMA connector on each antenna to the corresponding female SMA antenna connector on a Test Point labeled Antenna VeriWave Inc All rights reserved WaveTest User s Manual If a direct connection to the unit under test is required instead connect microwave rated SMA cables not supplied to the female SMA antenna connectors on the Test Points Test Points may also be connected to user supplied directional or omni directional antennas however they will no longer conform to the calibration levels established at the factory 4 Connectthe power adapters Connect the DC power plug on each power adapter to the corresponding DC power jack on a Test Point labeled Power and plug the AC power plug on the power adapter into a 115 230V
59. er frequency 47 Hz 63 Hz Standby power consumption 12 watts Active power consumption 13 watts Radio Specification Transmit power 15 dBm max VeriWave Inc All rights reserved 143 WaveTest User s Guide Transmit power control settable from 4 dBm to 14 dBm in 1 dBm increments Transmit power accuracy 1 0dBm Receiver sensitivity 76 dBm maximum for 8x10 2 FER Receive sensitivity control settable from 80 dBm to 20 dBm in dBm increments Receive sensitivity accuracy 2 dBm Frequency 2 4 GHz RF Input Connector SMA Female standard thread Coupling AC Impedance 50 Q nominal Max input voltage 10 VDC VSWR lt 1 5 1 over frequency band of interest Maximum RF input power 15 dBm Connectors Network Ethernet RJ 45 10 100 base T LAN Timing Sync between WT1xxx units RJ 45 VeriWave Synchronization timing cable required Trigger Input Rear Panel BNC female 5 0 Vdc max positive logic TTL Trigger Output Rear Panel BNC female 0 5 0 Vdc positive logic TTL Auxiliary Connector Rear Panel SMA Female Physical Characteristics Height 3 0 23 3 cm Width 12 25 31 1 cm Depth 9 1875 7 5 cm Weight 6 3 Ib 2 9 kg Environmental Temperature Operating 0 C to 40 C Storage 20 C to 460 C Humidity Operating 20 to 80 relative humidity Storage 40 C 95 relative humidity non condensing 144 OVeriWave Inc All rights reserved WaveTest User s Ma
60. es defined with the Address command VeriWave Inc All rights reserved WaveTest User s Manual BSSID This field provides a unique identifier for the BSS It is of the form of an IEEE MAC address In infrastructure BSS mode this value is the MAC address of the AP The value is selected from one of the addresses defined with the Address command Sequence Control Fields These fields are used to set the 16 bit Sequence control fields See the Sequence Control Sub command for details Error FCS Select this to force an FCS error to be generated with the frame Obey Defer Select this to cause the frame to defer transmission until there is no contention indicated The frame will be transmitted tx defer value after the channel is determined to be clear See IFS Values command for explanation of tx defer value Affect on log file Complete command inserted in log file at estimated send time VeriWave Inc All rights reserved 73 WaveTest User s Guide Authenticate Generate an Authentication frame t3 Authenticate Frame aJ Authenticate Frame Control Duration BSS ID Seq Num Ctrl Body b0 00 tt E addrs quem addrs ny addrs user specified 0 00 01 00 00 00 Seq Num D Frag Num Ctrl user specified A Fragment Num 0 error FCS obey defer Cancel FIELDS Frame Control Two byte value for the Frame Control field The format is byte0 bytel See Frame Control sub command f
61. fine any frame content The format is byteO bytel byte2 Error FCS Select this to force an FCS error to be generated with the frame Obey Defer Select this to cause the frame to defer transmission until there is no contention indicated The frame will be transmitted tx defer value after the channel is determined to be clear See IFS Values command for explanation of tx defer value VeriWave Inc All rights reserved 103 WaveTest User s Guide Reassociation Request Generate a Reassociation Request frame t3 Reassociation Request Frame m Reassociation Request Frame Control Duration BSS ID Seq Num Ctrl Body 20 00 tt E addrs prem addrs any addrs user specified 100 00 01 00 fff ff Seq Num D Frag Num Ctrl user specified 4 Fragment Num error FCS obey defer Cancel FIELDS Frame Control Two byte value for the Frame Control field The format is byte0 bytel See Frame Control sub command for details Duration Two byte value for the Duration field The format is byte0 bytel Bit 15 must be 0 for this frame DA Destination Address The DA field contains an IEEE MAC individual or group address that identifies the MAC entity or entities intended as the final recipient of the MSDU or fragment thereof contained in the frame body The value is selected from one of the addresses defined with the Address command SA Source Address The SA field contains an IEEE MAC in
62. first character must be an alpha character and the name must be at least 3 characters Variable Value 1 This field defines the value of the variable or is used in an expression to define the value of the variable Legal values include e An integer an decimal or hex 0x format e Atwo or more byte hex string in the format of xx xx e Another previously defined variable Operator This optional field allows the variable to be set to a value based on the expression containing variable value 1 and variable value 2 The drop down list contains the following operators amp 96 concat lt lt gt gt With the exception of the concat operator these operators are only valid on integer values or variables The concat operator can be used to concatenate hex strings VeriWave Inc All rights reserved WaveTest User s Manual Variable Value 2 This optional field is used in the expression to set the variable Legal values include e An integer in decimal or hex 0x format e A two or more byte hex string in the format of xx xx e Another previously defined variable VeriWave Inc All rights reserved 141 WaveTest User s Guide Tx Power 142 This command is used to set the radio transmit power The value can be set from 4dbm to 14 dbm in 1 db increments By changing the transmit power of the WT1xxx distance effects can be simulated It will take 4 frame transmissions for the radio to reac
63. gt Double clicking on the body field brings up the following data form This form can be used to fill out the body field VeriWave Inc All rights reserved 105 106 WaveTest User s Guide E Reassociation Request Data Capability Information Listen Interval Current AP Address ff ff ff fF fF ff A SSID ASCII E Supported Rates e2 64 56 96 E Lex Cancel Double clicking on the Capability Information field brings up an additional form for setting the capability information element Double clicking on the Supported Rates field brings up an addition form for setting the supported rates information element Affect on log file Complete command inserted in log file at estimated send time VeriWave Inc All rights reserved WaveTest User s Manual Reassociation Response Generate a Reassociation Response frame t3 Reassociation Response Frame m Reassociation Response Frame Control Duration BSS ID Seq Num Ctrl Body 30 00 tt E addrs E addrs any addrs fuser specified o0 00 00 00 01 00 Seq Num D Frag Num Ctrl user specified A Fragment Num D error FCS obey defer Cancel FIELDS Frame Control Two byte value for the Frame Control field The format is byte0 bytel See Frame Control sub command for details Duration Two byte value for the Duration field The format is byte0 bytel Bit 15 must be 0 for this frame DA Destination Add
64. h a quiescent state ig Transmit power m d 5 S dbm Lex Cancel FiELDS dbm This field is an integer value in the range of 4 14 in units dbm The field can either be set directly or through the increment and decrement arrows VeriWave Inc All rights reserved WaveTest User s Manual Specifications System Requirements Connection to host computer e 10BASE T Ethernet RJ 45 jack Supported host computers configuration IBM PC compatible 800 MHz processor or greater Minimum 256 Mbytes of memory 500 Mbytes available disk space CD drive minimum 10 100 Base T network adapter Operating System e MS Windows XP Professional Timing System Reference All timing referenced to internal clock of Test Point configured as Master Synchronization of Test Points Clock system of each slaved Test Point synchronized to within 500 ns of the Master Synchronization of Frames Between Slaved Test Points Frames from multiple test points are synchronized to within 500 ns Interframe Spacing Adjustable from 8 Us to 4 seconds Trigger Input Response Time 70 us max from receipt of trigger signal to execution of sequence command Trigger Output Delay Time 70 us max from execution of sequence command to output of trigger signal Power Consumption Input Power to each Test Point is provided by an external power supply Input voltage 120 240Vac max Input current 0 2 A max at 120 VAC 0 1 A max at 240 VAC Input pow
65. here is no contention indicated The frame will be transmitted tx defer value after the channel is determined to be clear See IFS Values command for explanation of tx defer value Affect on log file Complete command inserted in log file at estimated send time VeriWave Inc All rights reserved 79 WaveTest User s Guide CF Ack CF Ack CF Poll Generate a Contention Free CF Acknowledge ACK frame or CF Ack CF Poll frame These frames look like a null parameter set capability info and supported data frame EB CF Ack Frame J CF Ack Frame Control Duration Addrs 1 Addrs 2 Addrs 3 Seq Num Ctrl Addrs 4 68 00 ima any_addrs fany_adars any adars fuser specified fany_addrs A Seq Num Frag Num Ctrl user specified 4 Fragment Num 0 error FCS obey defer Cancel FIELDS Frame Control Two byte value for the Frame Control field The format is byte0 bytel See Frame Control sub command for details Duration Two byte value for the Duration field The format is byte0 bytel Bit 15 must be 0 for this frame addrs 1 addrs 2 addrs 3 addrs 4 These values are selected from one of the addresses defined with the Address command See the Data Frame Addresses sub command section for more information on selecting proper values for these fields Sequence Control Fields These fields are used to set the 16 bit Sequence control fields See the Sequence Control Sub command for details Error
66. ied number of PIFS periods EIFS from end of prev frame Wait for specified number of EIFS periods Random Backoff time Value is selected randomly with value between the min and max backoff values specified by the Set IFS Command VeriWave Inc All rights reserved 131 WaveTest User s Guide Wait for Trigger 132 This command causes the sequence to wait for the external trigger in to be asserted t3 Wait for Trigger m m Timeout On Trigger goto m 3 uSec from current time Lex Cancel FIELDS Timeout This field specifies the amount of time to wait for the trigger before timing out The value is in units of uSec On Trigger goto If a timeout occurs control will be sent to the location specified by this value The location can be either a abe or subroutine name The dropdown list contains all the defined labels and subroutines A new name may be entered but it must then be defined using the abe or subroutine command VeriWave Inc All rights reserved WaveTest User s Manual Parameter Commands Address This command defines an address variable Address variables are used in frame command address fields Each unique address in a sequence must be defined using this command EJ Address Variable m address name wildcard address value ox and FIELDS Address name Use this field to enter the text name for the address variable in this field The name
67. ion that is put into the log file change the flow of control within a sequence change the characteristics of a Test Point channel data rate and power or collide with a particular frame All Test Points are synchronized at the start of a test The timing of frame generation or interference generation is determined by the sequence Sequences once created can be written out to files to save them for re use later The WaveTest software assigns the file extension vws to all saved sequences by default Sequences can be easily edited for use in different situations A specific sequence such as a loading sequence can be run on multiple Test Points during a test The details for each command are included in the Command Reference chapter of this manual Types of commands The commands in sequences fall into three broad categories commands to generate frames commands to control the sequence and sequence parameters The WaveTest user interface contains a command button corresponding to each sequence command To make sequence creation easier the command interface is organized according to the type of 802 11 traffic The command buttons are located under the AP Traffic Client Traffic and IBSS Traffic tabs The commands that generate frames are VeriWave Inc All rights reserved 35 WaveTest User s Guide ACK ATIM Auth Assoc Req Assoc Rsp Beacon CTS Data Deauth Disassoc Null Probe Req Probe Rsp PS Poll Raw Reassoc Req Reas
68. is is accomplished by unchecking the checkbox in front of the unused Test Point s in the Group TestPoints display VeriWave Inc All rights reserved WaveTest User s Manual Figure 4 Group Test Point Display Enabled Test Point Disabled Test Point Default Group File Edit Vighw Group Testoint Display ar E 00 60 35 00 89 d9 stopped 00 60 35 00 89 49 00 60 55 00 d6 e4 stopped 00 60 55 00 d6 e4 AP_assoc Click the group to be executed usually Defau t this will cause the start button to be activated Next click start this will cause the WaveTest system to download the sequences to the associated Test Points via the Ethernet link and cause the Test Points to execute them Execution may be stopped at any time by clicking the Stop button Y Once execution of a sequence is stopped however clicking on the Start button will cause it to be re executed from the beginning There is no means of pausing execution or restarting from any point other than the beginning The execution of sequences causes test signals stimuli to be generated by one or more WT1xxx Test Points These stimuli as well as the responses by the DUT are recorded by the WaveTest system and displayed in the form of counter values that are shown in the Counter window as well as packet traces or logs Logs are shown in the Log window These windows are sensitive to the item selected in the Group TestPoint display If a Test Point is selected they will dis
69. ize traffic parameters isties Go ene treten edee dece taedet roche catugctpsascnsta eerte ee dede dep eade ere e ere dienes 39 Creating sequence commands issii 2 rere rre dee ra Fe nei recte e deo IEEE Ch Eon Snc Md Heo qe ee redeo d ee ee eae coL ia 39 Editing sequence tic ee he seeded t tee dinate a cea dee ae E ep eaa dee Bee ete ove cR 40 Changing command n eene ete tr denne ete qe oet Pesaro dence ade Po de Ede ep eade ee aee Ei Eir 40 Adding a command eite erste te He teet ep etr Ve e e i Ue ede de e a eerie ode ense eene S 40 Cutand paste ouo eques eda qe aeneae ied ode d tiet Te Ure dite deeds Deae ig ey 41 Deleting specific command ccccccscccicesicccccsucescecatcectacsacecdeestecdeatacsdcuseavecducdavescucaiecensvedaccaceudacnneeddusdeuedeesdaaces 41 Saving and loading sequences ce eeceseeccesesseeecssecseesecseesccssescesaecaesecseesecsaeeesaecaessecseeseesaesceseeeeessecseesesnesseeeaees 4l Saving a SEQUENCE e geste rei adie Dai EE E RD E S E EIER PETER nen nests wh Re EEUU rb LEE aD qt 68 4l Opening a sequence EP 42 Example SEQUeN c 43 Chapter o Rimming Test ege RESO EI ieee ee a tete Page ndn 44 BasiC OperatiOnzi aote ete ro dre IEEE QUERER ERAN TOUR A LIF ERE CE RERTRFURER TE 44 Edquipientset psicse idt doe OE TEUER ERREUR FINES RU ONERE REPE rb A UE Pet EIER UR IRE RE SEED 44 Th WaveTest SOIW C erras e E E rea E E E E EE EE E EE E EEE EEEE EEE EA E 45 Associating Sequences with Te
70. l rights reserved 17 WaveTest User s Guide WaveTest can at the user s discretion log all information in the air including frames partial frames and interference Coordinated System Loading Quickly and easily create traffic loading scenarios of any rate size or duration to stress a device under test Using a Test Point this remains completely synchronized with the rest of the WaveTest system to ensure the repeatability of the test Coordinated Interference Generate controlled interference effects within the testing environment Collide with specific frames in the protocol or randomize interference to determine robustness under almost any real world conditions Again using a Test Point this remains completely synchronized with the rest of the WaveTest system to ensure the repeatability of the test Benefits of the System 18 More thorough testing WaveTest gives you the capability to execute more complete and extensive testing of your WLAN equipment This allows you to build products that are higher performance and more robust because your are able to create more scenarios that test all the combinations that you want to test and do it repeatably Regression WaveTest s precise synchronization and timing system makes WLAN regression testing consistent and repeatable The system test knowledge of your organization can be saved in regression suites that can be run before the release of a new product Collections of tests ca
71. ll be transmitted tx defer value after the channel is determined to be clear See IFS Values command for explanation of tx defer value VeriWave Inc All rights reserved WaveTest User s Manual Affect on log file Complete command inserted in log file at estimated send time VeriWave Inc All rights reserved 97 WaveTest User s Guide Probe Response 98 Generate a Probe Response frame EJ Probe Response Frame m Probe Response Frame Control Duration BSS ID Seq Num Ctrl Body 50 00 tt E addrs Es addrs fany_ addrs user specified feu fe ed fe ed fe e Seq Num 0 Frag Num Ctrl user specified 4 Fragment Num QO F auto insert timestamp J error FCS obey defer Cancel FIELDS Frame Control Two byte value for the Frame Control field The format is byte0 bytel See Frame Control sub command for details Duration Two byte value for the Duration field The format is byte0 bytel Bit 15 must be 0 for this frame DA Destination Address The DA field contains an IEEE MAC individual or group address that identifies the MAC entity or entities intended as the final recipient of the MSDU or fragment thereof contained in the frame body The value is selected from one of the addresses defined with the Address command SA Source Address The SA field contains an IEEE MAC individual address that identifies the entity from which the transfer of the MSDU or fragment thereof co
72. mand section for more information on selecting proper values for these fields Sequence Control Fields These fields are used to set the 16 bit Sequence control fields See the Sequence Control Sub command for details Error FCS Select this to force an FCS error to be generated with the frame 84 VeriWave Inc All rights reserved WaveTest User s Manual Obey Defer Select this to cause the frame to defer transmission until there is no contention indicated The frame will be transmitted tx defer value after the channel is determined to be clear See IFS Values command for explanation of tx defer value Affect on log file Complete command inserted in log file at estimated send time VeriWave Inc All rights reserved 85 WaveTest User s Guide CTS Generate a Clear to send CTS frame Ej CTS Frame JJ CTS Frame Control Duration RA c4 00 tzt any adds error FCS J obey defer Cancel FIELDS Frame Control Two byte value for the Frame Control field The format is byte0 bytel See Frame Control sub command for details Duration Two byte value for the Duration field The format is byte0 bytel Bit 15 must be 0 for this frame RA Receive Address The RA field contains an IEEE MAC individual or group address of the immediate recipient station for the information contained in the frame body The value is selected from one of the addresses defined with the Address command
73. mmand for details Duration Two byte value for the Duration field The format is byte0 bytel Bit 15 must be 0 for this frame DA Destination Address The DA field contains an IEEE MAC individual or group address that identifies the MAC entity or entities intended as the final recipient of the MSDU or fragment thereof contained in the frame body The value is selected from one of the addresses defined with the Address command SA Source Address The SA field contains an IEEE MAC individual address that identifies the entity from which the transfer of the MSDU or fragment thereof contained in the frame body was initiated The value is selected from one of the addresses defined with the Address command VeriWave Inc All rights reserved 7I 78 WaveTest User s Guide RA Receive Address The RA field contains an IEEE MAC individual or group address of the immediate recipient station for the information contained in the frame body The value is selected from one of the addresses defined with the Address command BSSID This field provides a unique identifier for the BSS It is of the form of an IEEE MAC address In infrastructure BSS mode this value is the MAC address of the AP The value is selected from one of the addresses defined with the Address command Sequence Control Fields These fields are used to set the 16 bit Sequence control fields See the Sequence Control Sub command for details
74. must be made according to Seller s then current return and RMA Returned Merchandise Authorization policies a copy of which will be provided to Buyer upon request Upon receipt of such notice from Buyer Seller shall take commercially reasonable steps to repair or replace the product or refund to Buyer the purchase price at Seller s option THE FOREGOING STATES SELLER S SOLE AND EXCLUSIVE LIABILITY AND BUYER S SOLE AND EXCLUSIVE REMEDY FOR PRODUCTS THAT FAIL TO CONFORM TO THIS LIMITED PRODUCT WARRANTY All costs related to replacing a non conforming product during the Warranty Period or thereafter shall be borne exclusively by Seller b Warranty Exclusions The above warranty is contingent upon proper use of the product in the application for which it was intended and does not apply to any product that is subjected to unusual physical or electrical stress misuse neglect improper testing or storage unauthorized repair or problems that arise from any use of the products with other products not approved by Seller The products are not designed and no warranty is made with respect to goods used in devices intended for use in applications where failure to perform when properly used can reasonably be expected to result in significant injury including without limitation military or space applications navigation aviation nuclear equipment fire fighting or rescue equipment or for surgical implant or to support or sustain life Buyer hereby rep
75. n be easily shared between projects or between sites Fast and convenient set up The time required to set up a test scenario is significantly reduced or in some cases completely eliminated The information for each Test Point is downloaded automatically at the start of a test The need to re configure the settings for client station PCs is eliminated thus reducing the time required and eliminating configuration errors VeriWave Inc All rights reserved WaveTest User s Manual Tackling complex features Complicated advanced feature testing can be accomplished with confidence Intricate protocol interactions interference scenarios spatial information and precise measurement capability can all be combined to handle the testing of any layer 2 protocol related feature Improve organizational efficiency The consistent description of test scenarios and results improves communication between departments Engineering test cases can now be easily shared with manufacturing to allow them to more quickly develop the manufacturing tests Conversely manufacturing can feedback problems back to design in a clear and unambiguous way Also test can now be efficiently shared between sites allowing the elimination of redundant efforts Test and issues can now be shared between departments between sites and between companies Efficiently bring customer issues back to factory for analysis Difficult problems that have resisted analysis or are h
76. n case it is necessary to return the product to the factory VeriWave Inc All rights reserved 21 22 WaveTest User s Guide Positioning Test Points The WaveTest Test Points may be positioned at any desired location within the test environment They may be stacked on top of each other if required The antennas on the Test Points may be aligned at any orientation desired No special placement or cooling precautions are needed However the following recommendations are made Keep the Test Points away from any heating devices and protect them against excessively dusty or wet environments If used outdoors ensure that they are well protected from heat or moisture Allow at least 6 inches 15 cm of space above a stack of Test Points to permit optimum cooling Do not stack more than 6 Test Points on top of one another Align the antennas on the Test Points vertically for an omni directional radiation pattern Connecting antennas and cables The basic connection procedure is as follows 1 Connect the LAN Connect the RJ 45 Ethernet jack labeled JAO0BASE T on each Test Point to a 10 Mbps or 100 Mbps Ethernet port on a TCP IP LAN using a standard Category 5 unshielded or shielded twisted pair cable supplied Do not plug Ethernet cables into the RJ 45 timing jacks on the Test Points Damage may result To reduce the traffic load on the remainder of the LAN it is suggested that the Test Points and control comput
77. nd for details Duration Two byte value for the Duration field The format is byte0 bytel Bit 15 must be 0 for this frame BSSID This field provides a unique identifier for the BSS It is of the form of an IEEE MAC address In infrastructure BSS mode this value is the MAC address of the AP The value is selected from one of the addresses defined with the Address command TA Transmitting Address The TA field contains an IEEE MAC address of the station transmitting the frame The value is selected from one of the addresses defined with the Address command AID Overwrite Explanation needed VeriWave Inc All rights reserved 101 WaveTest User s Guide Error FCS Select this to force an FCS error to be generated with the frame Obey Defer Select this to cause the frame to defer transmission until there is no contention indicated The frame will be transmitted tx defer value after the channel is determined to be clear See IFS Values command for explanation of tx defer value Affect on log file Complete command inserted in log file at estimated send time 102 OVeriWave Inc All rights reserved WaveTest User s Manual RAW Generate an 802 11 frame using a simple byte stream a Raw Frame a x raw frame byte stream fe ed fa ce Ob ad f0 0d error FCS obey defer Cancel FIELDS Raw frame Use this field to enter frame data in byte format in order to de
78. ng and saving of test sequences that run on WaveTest equipment Running a Test Chapter 6 explains how the equipment is configured and used for testing a Device Under Test DUT Output Logging and Reports Chapter 7 explains how to save the results of tests and how to create reports from the information Command Reference Chapter 8 provides the detailed reference for every command that can be used in a test sequence Specifications The Specifications provide details on the accuracy of the WaveTest equipment including how it is measured Glossary provides the explanation of terms that are used throughout this guide How to use this guide Standard conventions VeriWave Inc All rights reserved 5 WaveTest User s Guide Convention Explanation Notes Y A note indicates useful tips Cautions dy A caution indicates critical intormation is provided to prevent you from losing data or otherwise affecting your system Illustrations Screen illustrations in this guide are representative They may not match exactly the screens on your system Technical Support Contact information If you encounter problems that cannot be resolved by reading this manual contact VeriWave for technical support Phone 503 473 8341 Email support veriwave com Reporting a problem When you call technical support be prepared to provide the following information If you request help using email include as much of
79. ng to the byte fields of a 802 11 frame starting with the Frame Control field The value can be either a hex string or a variable name Goto This field specifies the branch location to jump to when the corresponding mask field is matched The location can either be a label or a subroutine name With a Timeout of This field allows a timeout value in usec to be specified After the specified time if a frame mask has not been matched the sequence control will be directed to the location specified by the Timeout Label If the timeout value is set to 0 this will VeriWave Inc All rights reserved WaveTest User s Manual indicate that the time set by the 7 me Marker command will be used as the timeout value If the time set by the Time Marker command has already passed when this command is evaluated control will immediately be sent to the Goto Label location Timeout Goto This field is used to specify the location in the sequence to which control will be transferred if a timeout occurs The location must a defined abe or subroutine VeriWave Inc All rights reserved 125 WaveTest User s Guide Return This command is used to define a return location in a subroutine A subroutine can have zero or more return statements Create a Return from a subroutine in a Sequence Lex Cancel 126 OVeriWave Inc All rights reserved WaveTest User s Manual Subroutine This command is used to define a subroutine The
80. nnection This chapter provides a step by step guide to the installation and setup of the WaveTest hardware and software In addition it provides initial configuration information instructions on verifying that the system was installed properly and some troubleshooting information in case problems occur during installation The installation process takes the following steps STEP1 Unpack and identify the various hardware and media components STEP2 Connectthe cables and power on the Test Points STEPG3 Install the software STEP4 Perform initial system configuration and run a short test to verify that the installation was successful Hardware setup Unpacking Remove the WaveTest Test Point s and all accessories from the packing carton For each Test Point system inspect the various components and ensure that the following items are included 1 WT1xxx Test Point 2 110 220V power adapter 3 10 foot Ethernet cable terminated with unshielded RJ 45 plugs used to connect the Test Point to a LAN 4 25 meter timing synchronization cable terminated with shielded RJ 45 plugs used to connect the Test Point to another Test Point 5 Omni directional antenna with an SMA connector 6 A CD ROM containing the WaveTest software documentation and example test sequences If any of the above items are missing or damaged call VeriWave Technical Support immediately Retain the original carton and packing materials i
81. ntained in the frame body was initiated The value is selected from one of the addresses defined with the Address command VeriWave Inc All rights reserved WaveTest User s Manual BSSID This field provides a unique identifier for the BSS It is of the form of an IEEE MAC address In infrastructure BSS mode this value is the MAC address of the AP The value is selected from one of the addresses defined with the Address command Sequence Control Fields These fields are used to set the 16 bit Sequence control fields See the Sequence Control Sub command for details Body The body field contains a hex value in byte format byteO bytel byte2 The definitions of the bytes are shown in the table below Table 12 Probe Response Frame Body Number of Octets Information Format 8 Timestamp b0 b1 b2 b3 b4 b5 b6 b7 2 Beacon Interval b8b9 2 Capability information B10 b11 3 SSID 00 length value 3 Supported rates 01 lt length gt lt value gt 3 FH Parameter Set 02 lt length gt lt value gt 3 DS Parameter Set 03 lt length gt lt value gt 3 CF Parameter Set 04 lt length gt lt value gt 3 IBSS Parameter Set 06 length value Double clicking on the body field brings up the following data form This form can be used to fill out the body field Note The SSID field can be filled in as an ASCII expression using the da
82. nual Altitude Operating 1000 ft to 10 000 ft Vibration random Operating 5 Hz to 500 Hz 1G Non Operating 5 Hz to 500 Hz 5 G Shock 20 G shock tolerance EMC Isolation gt 80 dBm isolation from case to receiver inputs Immunity gt 100 mV meter over range of 0 2 3 GHz Emissions 2 5 uV meter in WLAN band 100 uV meter over range from 30 MHz to 5 GHz Regulatory TUV US listed Tested to comply with Class A part 15 FCC standards VeriWave Inc All rights reserved WaveTest User s Guide Appendix A Glossary Command a specific operation used to control a function of the WaveTest system Sequence a program for a Test Point that specifies the commands that a Test Point will execute during a test Test the resulting action of the sequence file and WaveTest system Test Point A WT1xxx hardware device 146 OVeriWave Inc All rights reserved WaveTest User s Manual Appendix B Warranty LIMITED PRODUCT WARRANTY a Warranty and Return Seller warrants to Buyer that each product as delivered will substantially conform to Seller s published specifications for a period of one 1 year from the date such product is delivered to Buyer such period the Warranty Period In the event of a breach of the foregoing warranty during the Warranty Period Buyer shall promptly notify Seller by generally describing the nature of the non conformity in writing Return of non conforming products
83. o cause the frame to defer transmission until there is no contention indicated The frame will be transmitted tx defer value after the channel is determined to be clear See IFS Values command for explanation of tx defer value Affect on log file VeriWave Inc All rights reserved 71 WaveTest User s Guide ATIM 72 Generate an IBBS Announcement Traffic Indication Message ATIM Eg ATIM Frame Jo ATIM Frame Control Duration BSS ID Seq Num Ctrl 90 00 tt any addrs E addrs any addrs user specified A Seq Num D Frag Num Ctrl fuser specified A Fragment Num error FCS obey defer p Cancel FiELDS Frame Control Two byte value for the Frame Control field The format is byte0 bytel See Frame Control sub command for details Duration Two byte value for the Duration field The format is byte0 bytel Bit 15 must be 0 for this frame DA Destination Address The DA field contains an IEEE MAC individual or group address that identifies the MAC entity or entities intended as the final recipient of the MSDU or fragment thereof contained in the frame body The value is selected from one of the addresses defined with the Address command SA Source Address The SA field contains an IEEE MAC individual address that identifies the entity from which the transfer of the MSDU or fragment thereof contained in the frame body was initiated The value is selected from one of the address
84. o use software for fast and efficient test setup The WaveTest system provides an 802 11 aware software user interface with knowledge based pull downs to ease the entry of frame information for sequences An engineer knowledgeable with the 802 11 communication protocol can quickly develop specific and precise tests The interface is organized to handle the powerful multi Test Point capabilities of WaveTest and configurable to maximize the information needs of the different phases of testing Real time display of important statistics All of the counters of the 802 11 MIB are displayed and updated dynamically during the execution of a test These statistics are shown for all the Test Points in a test giving a complete view of all of the important data regarding test operation Configurable triggering Internal triggers allow the control of logging and other traffic features based on the complex conditions in the 802 11 traffic stream External triggers allow the control of other test equipment or input from external test equipment For example WaveTest can identify a logical traffic condition at layer 2 of the protocol and then trigger RF analysis equipment As a result WaveTest makes your current equipment more effective and efficient Complete and large capacity logging Each Test Point contains 100 Mbytes of log memory to collect extensive information during tests and enable detailed post analysis of test results VeriWave Inc Al
85. of the addresses defined with the Address command VeriWave Inc All rights reserved 95 96 WaveTest User s Guide BSSID This field provides a unique identifier for the BSS It is of the form of an IEEE MAC address In infrastructure BSS mode this value is the MAC address of the AP The value is selected from one of the addresses defined with the Address command Sequence Control Fields These fields are used to set the 16 bit Sequence control fields See the Sequence Control Sub command for details Body The body field contains a hex value in byte format byteO bytel byte2 The definitions of the bytes are shown in the table below Table 11 Probe Request Frame Body Number of Octets Information Format 3 SSID 00 length value 3 Supported Rates 01 lt length gt lt value gt Double clicking on the body field brings up the following data form This form can be used to fill out the body field Note The SSID field can be filled in as an ASCII expression using the data form The ASCII characters are converted to hex values in the frame body field 2 Probe Request Data SSID ASCII A Supported Rates 82 84 8b 96 4 Lex Cancel Error FCS Select this to force an FCS error to be generated with the frame Obey Defer Select this to cause the frame to defer transmission until there is no contention indicated The frame wi
86. oint Test Point P RN COURT ETT a NI Test Point Test Point e e l Optional Test Point Characteristics of the WaveTest System Complete Conformance Test Capability WaveTest allows thorough and rigorous testing of every 802 11 layer 2 protocol feature Every aspect of the protocol can be tested including delays complex interactions multiple BSS and much more This improves the robustness of your solutions by enabling coverage of all features and stressing your system under design Extremely Accurate and Repeatable WaveTest provides a level of accuracy for layer 2 protocol analysis that has not been commercially available in the market until now By providing this high level of accuracy combined with a close synchronization of the multiple Test Points in the WaveTest system now you can build regression suites that run reliably again and again allowing you to save your testing knowledge from project to project Configurable and Expandable WaveTest supports a broad range of configurations from testing the largest configurations with multiple of Access Points and stations to a configuration VeriWave Inc All rights reserved 15 Features 16 WaveTest User s Guide for the individual development engineer A common VeriWave architecture facilitates the sharing of test results between the different func
87. ommand SA Source Address The SA field contains an IEEE MAC individual address that identifies the entity from which the transfer of the MSDU or fragment thereof contained in the frame body was initiated The value is selected from one of the addresses defined with the Address command VeriWave Inc All rights reserved 91 WaveTest User s Guide BSSID This field provides a unique identifier for the BSS It is of the form of an IEEE MAC address In infrastructure BSS mode this value is the MAC address of the AP The value is selected from one of the addresses defined with the Address command Sequence Control Fields These fields are used to set the 16 bit Sequence control fields See the Sequence Control Sub command for details Body The body field contains a hex value in byte format byteO bytel byte2 The definitions of the bytes are shown in the table below Table 10 Disassociation Frame Body Number of Octets Information Format 2 Reason Code BO b1 Double clicking on the body field brings up the following data form This form can be used to fill out the body field y ij Reason Code Data m E Reason Code Unspecified reason A Lex Cancel Error FCS Select this to force an FCS error to be generated with the frame Obey Defer Select this to cause the frame to defer transmission until there is no contention indicated The frame will be transmitt
88. ommand adding commands cutting and pasting portions of sequences and deleting a specific command Changing a command To change the fields or options chosen for a command in a sequence simply double click on the command in question in the sequence window This brings up the same frame editing window that was used to input the command initially Make the change in the in the field or option and click OK on the interface The command with the changes now replaces the previous version of the command To disregard changes click on Cancel and the previous version of the command remains Adding a command To add a command at any point in a sequence simply single click on the command in the sequence just before where you want to insert the new command The command is highlighted in the display Then click on the new frame command button that you want to insert and follow the steps you would on any command VeriWave Inc All rights reserved WaveTest User s Manual Cut and paste Individual commands or larger portions of sequence can be easily moved to new places within the current sequence or within another sequence First place the commands to be moved into the clipboard buffer This can be done two ways One select a command or number of commands in the sequence window by holding down the left mouse button then select Edit 2 Copy from the menu A copy of the selected command s is placed into the clipboard buffer T
89. onal The specific connections and requirements on the user supplied pieces of equipment are also described in Chapter 4 Finally the Device Under Test DUT should be appropriately placed and powered on If an open air test is being performed then the WT1xxx Test Points should be equipped with VeriWave provided antennas to transmit signals to the DUT and record its response If a cabled i e shielded or conducted test is being performed then an appropriate power combiner network should be connected to the antenna connectors on the Test Points 44 VeriWave Inc All rights reserved WaveTest User s Manual and the common port of the power combiner should be coupled to the DUT in some manner Coupling to the DUT can be done in many ways direct cable connection to an antenna connector coupling by means of probes into a shielded test chamber use of test fixtures etc As the means of coupling is highly dependent on the physical and electrical configuration of the DUT it will not be described in detail here Contact VeriWave technical support for assistance on proper methods of coupling WT 1xxx Test Points to the DUT Once the equipment has been properly set up and operational tests may be run as described in the next section The WaveTest Software The standard method of running tests using the WaveTest system is by means of the VeriWave supplied User Interface software This is an application that runs on a standard Ethernet eq
90. ons in the Group TestPoint display can be used to create a new group and assign a descriptive name to a group Additionally the right mouse button can be used to delete or rename a group Test Points are added to groups by selecting them from the Group TestPoints display and then right click to bring up the popup menu Select Copy TestPoint and then right click the desired group name select Paste TestPoint Once a group of Test Points has been set up all of the Test Points within the group can be started as a unit by first selecting the group within the Group window and then clicking on the Start button in the Sequence window This causes the WaveTest software to download the assigned sequences to all of the Test Points in the group and start execution of the sequences on all Test Points at the same point in time All of the Test Points within the group can also be stopped by similarly selecting the group and then clicking on the Stop button in the Sequence window A synchronization protocol is implemented between the Test Points and the GUI to ensure that Test Points in a group all start at the same time 52 VeriWave Inc All rights reserved WaveTest User s Manual Chapter 7 Logs Outputs and Reports This chapter describes the various results and output formats that are available from the WaveTest system Logging test results In the WaveTest system the concept of logging refers to the recording of test results Th
91. ontrol sub command for details Duration Two byte value for the Duration field The format is byte0 bytel Bit 15 must be 0 for this frame RA Receive Address The RA field contains an IEEE MAC address of the immediate recipient station that is the intended immedidate recipient of the pending directed data or management frame The value is selected from one of the addresses defined with the Address command TA Transmitting Address The TA field contains an IEEE MAC address of the station transmitting the frame The value is selected from one of the addresses defined with the Address command Error FCS Select this to force an FCS error to be generated with the frame VeriWave Inc All rights reserved WaveTest User s Manual Obey Defer Select this to cause the frame to defer transmission until there is no contention indicated The frame will be transmitted tx defer value after the channel is determined to be clear See IFS Values command for explanation of tx defer value Affect on log file Complete command inserted in log file at estimated send time VeriWave Inc All rights reserved 111 WaveTest User s Guide Sequence Control Commands Assert Trigger 112 This command asserts the external trigger out For additional information on the external trigger refer to the electrical specifications of your WaveTest Test Point EJ Assert Trigger Create an Assert Trigger in a Sequence Cancel
92. or details Duration Two byte value for the Duration field The format is byte0 bytel Bit 15 must be 0 for this frame DA Destination Address The DA field contains an IEEE MAC individual or group address that identifies the MAC entity or entities intended as the final recipient of the MSDU or fragment thereof contained in the frame body The value is selected from one of the addresses defined with the Address command SA Source Address The SA field contains an IEEE MAC individual address that identifies the entity from which the transfer of the MSDU or fragment thereof contained in the frame body was initiated The value is selected from one of the addresses defined with the Address command 74 VeriWave Inc All rights reserved WaveTest User s Manual BSSID This field provides a unique identifier for the BSS It is of the form of an IEEE MAC address In infrastructure BSS mode this value is the MAC address of the AP The value is selected from one of the addresses defined with the Address command Sequence Control Fields These fields are used to set the 16 bit Sequence control fields See the Sequence Control Sub command for details Error FCS Select this to force an FCS error to be generated with the frame Obey Defer Select this to cause the frame to defer transmission until there is no contention indicated The frame will be transmitted tx defer value after the channel is determined to be
93. play the results from the selected Test Point only If the group is selected they will display the combined results of the test Dealing with the test environment MAC addresses MAC addresses are normally unique to each instance of a DUT as every copy of a WLAN device is assigned one or more globally unique MAC addresses The address fields in the transmitted and received packets will therefore change from equipment to equipment To simplify the task of adapting sequences to specific equipment as well as to improve portability and readability it is VeriWave Inc All rights reserved 49 50 WaveTest User s Guide required that all of the MAC addresses used within a sequence be encapsulated as address variables that are set at the beginning of the sequence Once this is done adapting a sequence to a new piece of equipment is simply a matter of modifying the values assigned to the various address variables Assigning descriptive names to the address variables and inserting comments to indicate their use within the sequence will also enhance portability More information on creating setting and using address variables is found in Chapter 4 Setting the channel and data rate The WaveTest system does not scan through all available channels but instead conducts tests on a specific channel or moves from channel to channel in a user determined fashion The WLAN channel must thus be properly set as part of the sequence In addition the d
94. power outlet Ensure that the green indicator marked Power on the front panel is lit The universal power adapters supplied with the Test Points are capable of accepting 115 230V 50 60Hz AC The user may however need to supply a country specific adapter for the power outlet Note that there is no on off power switch for a Test Point it will automatically begin operation when plugged into an AC power source Note the above steps should be carried out in the order specified in order to avoid damage to the equipment Connection of a single Test Point system Figure 1 shows the connections required for a WaveTest system comprising a single Test Point using an air interface to the system under test Figure 1 Connections for a single Test Point system O Q ti test point Sync 10Base T 7 aN i LU To ethernet VeriWave Inc All rights reserved 23 24 WaveTest User s Guide The Timing jacks on the Test Point are not used and are hence left open The LAN jack on the Test Point is connected to an Ethernet switch or hub the control computer should preferably also be connected to the same switch or hub A DHCP server should be accessible on the LAN to ensure that the Test Point can obtain an IP address The VeriWave supplied software running on the control computer will only detect Test Points that are present on the same LAN segment as the computer
95. preferably be connected to the same switch or hub Also a DHCP server should be present to enable the Test Points to obtain IP addresses To synchronize the timing references within all of the Test Points the RJ 45 synchronization ports on the Test Points should be connected in a daisy chain as shown in the figure One of the Test Points should have its Z jack left unconnected this Test Point will automatically become the timing master for the daisy chain and the remaining Test Point will act as slaves The next Test Point in the chain should hence have its Z jack connected to the 2jack of the timing master and its 2jack connected to the Z jack of the succeeding Test Point in the chain and so on The last Test Point in the chain should have its 2 jack left open The selection of a particular Test Point to act as a timing master is not important any Test Point may be used for this purpose It is essential however to ensure that all of the Test Points that will be used for a given test setup are connected into the timing synchronization daisy chain If desired all of the Test Points in a given location may be connected into a single timing synchronization daisy chain even if the Test Points are associated with different test setups and or running different tests VeriWave Inc All rights reserved 25 WaveTest User s Guide Connection to system under test using RF cables A Test Point may also be directly cabled to the system unde
96. quests for IP addresses No client or access point is required for the test procedure all functions are performed internally to the Test Points To perform the test follow the steps below Step 1 Invoke the WaveTest application A splash screen will be displayed briefly after which the main WaveTest user interface window will appear VeriWave Inc All rights reserved 29 30 WaveTest User s Guide C File Edit View Help Group TestPoint Display TestPoint Sequence Window Grup TesPont Status Master TestPoint Index Sequence Cmd CG Default no tme rex Signal DataRate FrameType FC Duw Awst Adarsa Ads sync Address Variable ap1 Set Channel 4 Data Rate 1 Mb s Wait for 00 1000 frame Wait for Time 1000 usec end1 End Test Sequence 00 60 35 00 e8 6b stopped 00 60 35 00 e8 6c d sto bb sec 00 60 35 00 e8 6c stopped 00 60 35 00 e8 6c D0 60 35 00 dc bc stopped 00 60 35 00 dc bc o0 coron omo o 4 C C R CO hh cC add group rename E uu TestPoint Sequence Actions new edit Step2 After a few seconds the WaveTest program should begin to automatically scan for and detect active Test Points Verify that the number of Test Points detected and displayed in the Group TestPoint Display sub window at the top left of the main window corresponds to the number of Test Points that have been actually installed
97. r test instead of using an antenna and the air interface In this case the supplied SMA antenna is not installed on the Antenna RF connector on the Test Point instead a microwave rated SMA cable can be used to connect the Antenna connector directly to the device or system under test If multiple Test Points are to be connected to a single device or system under test a user provided RF power divider should be used The remainder of the connections are identical to those required for the air interface setup V Consult VeriWave Technical Support for additional information on the required characteristics of the power divider as well as recommendations for RF cables and test procedures Software Installation The WaveTest system requires installation of a software application on the control computer to provide user interface and control functions This software is installed from the CD ROM provided with the WaveTest product or can be downloaded from the VeriWave website for registered users If the CD ROM is damaged or lost call VeriWave Customer Support to obtain a replacement Before installing the software Prior to beginning the software installation on the selected control computer verify that it meets the following minimum requirements Windows XP operating system Atleast 256 MB or more RAM installed Atleast 50 MB or more free disk space A CD ROM or DVD ROM drive Ethernet LAN interface with TCP IP networking software Ad
98. rames IX Octets IX eir octets IX ctrl octets rx mgmt octets rx data octets IX rsvd octets Page 2 Fri May 07 15 18 39 2004 WT 1000 Test Report Test Point 1 Status tx buff length tx crc flag tx src linenum rf synch groupid curr channel curr tx power curr tx speed 228 15070 137 832 13758 480 ping txt AP Initial Test 4342338 1 VeriWave Inc All rights reserved 57 WaveTest User s Guide log value 0 log_control 1 rx_something 48 tx_data 0 tx_start 3670271 seq_cmd 268 internal_error 0 log_val_counter 0 rx_fcontrol 0 tx_fcontrol 128 channel_var 0 rf_node_sync rf_node_id 808466993 clock_check_msg 0 mcm msg infol 1314614130 mcm msg info2 1663 Page 3 ping txt Fri May 07 15 18 39 2004 WT 1000 Test Report AP Initial Test Test Point 2 Counters tx_frames 0 tx_crc_errors tx_ctrl_ frames tx_mgmt_frames tx_data_frames 0 tx_rsvd_frames 0 tx_octets 0 tx_err_octets 0 tx_ctrl_octets 0 tx_mgmt_octets 0 tx_data_octets 0 tx_rsvd_octets 0 rx_frames 0 IX CIC errors 0 rx_ctrl_frames 0 rx_mgmt_frames 0 rx_data_frames 0 rx_rsvd_frames 0 rx_octets 0 rx_err_octets 0 rx_ctrl_octets 0 rx mgmt octets rx_data_octets 0 rx_rsvd_octets 0 58 VeriWave Inc All rights reserved WaveTest User s Manual Page 4 ping txt Fri May 07 15 18 39 2004 WT 1000 Test Report AP Initial Test Test Point 2 Status tx_buff_length 0
99. re Interface The interface is designed for the engineer that is 802 11 protocol knowledgeable t is easy to learn and offers many features to help with the proper formatting of frames The user is given full access to 802 11 standard and the control to insert errors as well The interface is connected to the Test Points over an Ethernet cable The interface controls all the Test Points and the set up and monitoring of tests The interface is supported on MS Windows XP platforms tg J WaveTest J EJ File Edit View r TestPoint Sequence Window Sequence Cmd 0 sync Address Variable ap1 Set Channel 4 Data Rate 1 Mb s Group TestPoint Display Group TestPont Status MasterTestPoint Session File EtG Default HT DD 50 35 00 e8 5b ar 00 60 35 00 de b1 00 60 35 00 de bb 00 60 35 00 e8 6c 00 60 35 00 dc b1 stopped stopped 00 60 35 00 e8 6c ar 00 60 35 00 e8 6c stopped Wait for 00 1000 frame ar 00 60 35 00 de bc stopped 00 60 35 00 de be Wait for Time 1000 usec aoe arian c n s i oaanaran c a endis 4 C ER C0 hN20 End Test Sequence Control add group rename Log Window No me mm Sina DataRate Frame tyne Fc Dur Adast Asars Addre3 AP Traffic VeriWave Inc All rights reserved WaveTest User s Manual Chapter 4 Installation and Co
100. resents and covenants to Seller and Seller s suppliers that it will not use or sell any products for any of the foregoing purposes and Buyer agrees to indemnify defend and hold harmless Seller from all claims damages and liabilities arising out of a breach of the foregoing restriction c Disclaimer of Warranty The above warranty is non transferable and is made solely to and for the benefit of Buyer OTHER THAN AS EXPRESSLY SET FORTH IN SECTION 8 a ABOVE AND SECTION 10 BELOW SELLER MAKES NO WARRANTIES EXPRESS STATUTORY IMPLIED OR OTHERWISE AND SELLER SPECIFICALLY DISCLAIMS THE IMPLIED WARRANTIES AND CONDITIONS OF MERCHANTABILITY FITNESS FOR A PARTICULAR PURPOSE AND NON INFRINGEMENT TO THE MAXIMUM EXTENT PERMITTED BY LAW VeriWave Inc All rights reserved 147 WaveTest User s Guide 148 OVeriWave Inc All rights reserved
101. ress The DA field contains an IEEE MAC individual or group address that identifies the MAC entity or entities intended as the final recipient of the MSDU or fragment thereof contained in the frame body The value is selected from one of the addresses defined with the Address command SA Source Address The SA field contains an IEEE MAC individual address that identifies the entity from which the transfer of the MSDU or fragment thereof contained in the frame body was initiated The value is selected from one of the addresses defined with the Address command VeriWave Inc All rights reserved 107 108 WaveTest User s Guide BSSID This field provides a unique identifier for the BSS It is of the form of an IEEE MAC address In infrastructure BSS mode this value is the MAC address of the AP The value is selected from one of the addresses defined with the Address command Sequence Control Fields These fields are used to set the 16 bit Sequence control fields See the Sequence Control Sub command for details Body The body field contains a hex value in byte format byteO bytel byte2 The definitions of the bytes are shown in the table below Table 14 Reassociation Response Frame Body Number of Octets Information Format 2 Capability Information b0 b1 2 Status Code b2 b3 3 Association ID AID 00 length value 3 Supported Rates 01 lt length gt lt value gt
102. ret n Debe em i ere P Rie erbe eq PE 12 WaveTest User s Manual iere tede a edere ree rh Poe ger e ed m REESE 12 WaveTest Installation and QuickStart Guide eene ener eene terrere nnne 12 Sequence Command ReferenCe ss ssc ot e i Ue etri ad tette e eee Aa eee iet e traen 12 User Supplied 8e e so hne p i Satie cite RR idee ee rut a SEE 13 Windows based PC oon irte oet Ra C dro ci REQUE AR o Pastels T Ie tenis 13 Bthernet network ere ee race et tod hri eti na dites e aaepe 13 Chapter 3 Theory of Operation ien irri P hte eter eite rq Rte eque ORE rie vet 14 Overview of the WaveTest System eene d hte deren cite DR dites fe recti E Fete SS 14 Characteristics of the WaveTest System esses eene nennen nennen nennen trennen enne te entren nene trennen 15 Complete Conformance Test Capability eese eene nennen nnne ente enne nre 15 Extremely Accurate and Repeatable essent enne trennen teen n enne en rennen 15 Configurable and Expandable snis 422 ch ree reme eO tea dte ege cete i ib rdes 15 Spans from lab bench to customer Sit n inre mn ainen enne nennen an r tenerte nre trennen 16 Supports Open Air and C bled Testing medo eei ce eet rhe ent dee iei R ten 16 Spatially awarni E 16 FeattieS cc 16 Extensive traffiC generation srini idet tento atem deret fee el ee iHe tn a AAR EA ES 16 Interactive LOS LING cette RH eee TCR I o mie ne Entente E E eRE T SAE E EE SEAE 17 Coordinated interferenc
103. rison operators lt gt gt When TRUE Goto Use this field to enter the label or subroutine name to which sequence control will be transferred if the comparison is TRUE Names are defined using the Label or Subroutine command When FALSE Goto Use this field to enter the label or subroutine name to which sequence control will be transferred if the comparison is FALSE Names are defined using the Label or Subroutine command VeriWave Inc All rights reserved 119 WaveTest User s Guide Label 120 This command inserts a label at the current location in the sequence Labels are used in conjunction with the Goto wait for frame wait for trigger multiwait collide with frame if then and Dec Loop commands to cause redirection of sequence execution Insert Label Jo Label Name D Lex Cancel FiELDS Label Name This field defines the name of the label The name can contain any alphanumeric character plus and _ The first character must be an alpha character and the name must be at least 3 characters OVeriWave Inc All rights reserved WaveTest User s Manual Log Control This command is used to control the WaveTest logging function By placing this command in the test sequence the logging can be turned on or off or various aspects of the log can be set at selected points during the sequence execution Each of the options creates a separate command in the s
104. rt Logging entry into the sequence execution of this sequence entry by a Test Point will cause it to begin recording log entries immediately thereafter Logging is carried out separately and independently by each Test Point in a system Hence enabling and disabling logging on one Test Point has no effect on the logs being captured by any other Test Point The user may enable and disable logging any number of times within a sequence In addition enabling logging when it is already enabled or disabling logging when it is already disabled is ignored by the WT1xxx Test Point simplifying the task of turning on and off logging many times in a single test Additional options are available to control logging Refer the Log Control command in the Command Reference for details Viewing and saving logs The log captured by any Test Point may be viewed after a test is complete or stopped by selecting the Test Point in the Group TestPoint display This causes the og window contents to be updated with the packet data and associated timestamps that were either sent or received by the Test Point To view the results of a multiple Test Point test select the group in the Group TestPoint display The Log Window will show a combined log of all Test Point results Since the Test Points are time synchronized the information in the log is time order accurate VeriWave Inc All rights reserved WaveTest User s Manual Output Files Generated by Wave
105. s no contention indicated The frame will be transmitted tx defer value after the channel is determined to be clear See IFS Values command for explanation of tx defer value Affect on log file Complete command inserted in log file at estimated send time VeriWave Inc All rights reserved WaveTest User s Manual Probe Request Generate a Probe Request frame t3 Probe Request Frame m s Probe Request Frame Control Duration B55 ID Seq Num Ctrl Body 40 00 tt E addrs E addrs any addrs user specified 00 00 01 04 82 84 Seq Num D Frag Num Ctrl user specified A Fragment Num 0 error FCS obey defer Cancel FIELDS Frame Control Two byte value for the Frame Control field The format is byte0 bytel See Frame Control sub command for details Duration Two byte value for the Duration field The format is byte0 bytel Bit 15 must be 0 for this frame DA Destination Address The DA field contains an IEEE MAC individual or group address that identifies the MAC entity or entities intended as the final recipient of the MSDU or fragment thereof contained in the frame body The value is selected from one of the addresses defined with the Address command SA Source Address The SA field contains an IEEE MAC individual address that identifies the entity from which the transfer of the MSDU or fragment thereof contained in the frame body was initiated The value is selected from one
106. s will bring up a browser window that will allow a new directory to be created or selected When the disk and or directory have been selected click Next gt gt A window will be displayed that allows the Start Menu Folder to be changed If the Start Menu Folder is to be changed either select an existing folder from the available folders or name a new folder in the space provided Click Next gt gt to continue the installation VeriWave Inc All rights reserved 27 28 Step 7 Step 8 Step 9 WaveTest User s Guide A window will be displayed that allows for additional tasks to be performed A shortcut icon can be included on the Desktop and in the QuickStart toolbar Select the desired options and click Next gt gt A window will be displayed showing the selected installation options Click Next gt gt to proceed with the installation or cancel to terminate the install After the installation completes a window will appear asking to reboot the computer Click Finish to complete the installation When the computer finishes rebooting a VeriWave WaveTest program submenu under the Start menu will be created Also additional icons will be created depending on the options selected in Step 7 Double clicking on either the icon or the VeriWave WaveTest program item will launch the WaveTest application Uninstalling the software After installation the Uninstall icon under the WaveTest program submenu can be used
107. send time VeriWave Inc All rights reserved WaveTest User s Manual Association Response Generate an Association Response frame fi Association Response Frame m Association Response Frame Control Duration BSS ID Seq Num Ctrl Body 10 00 fez E addrs E addrs any addrs fuser specified 00 00 00 00 01 cO Seq Num D Frag Num Ctrl user specified 4 Fragment Num D error FCS obey defer Cancel FIELDS Frame Control Two byte value for the Frame Control field The format is byte0 bytel See Frame Control sub command for details Duration Two byte value for the Duration field The format is byte0 bytel Bit 15 must be 0 for this frame DA Destination Address The DA field contains an IEEE MAC individual or group address that identifies the MAC entity or entities intended as the final recipient of the MSDU or fragment thereof contained in the frame body The value is selected from one of the addresses defined with the Address command SA Source Address The SA field contains an IEEE MAC individual address that identifies the entity from which the transfer of the MSDU or fragment thereof contained in the frame body was initiated The value is selected from one of the addresses defined with the Address command VeriWave Inc All rights reserved 69 70 WaveTest User s Guide BSSID This field provides a unique identifier for the BSS It is of the form of an I
108. soc Rsp RTS Contention Free frames CF ACK CF End CF ACK CF Poll CF End CF ACK CF Poll Data ACK Poll Data CF ACK Data CF Poll The commands that control the sequence are Comment log value log control end of sequence Label Dec Loop Subroutine return end sub if then Collide with frame Wait for frame wait for time wait for trigger multiwait for frame Assert trigger The commands used to set 802 11 parameters are Address Channel Data Rate FS Values RX Threshold Seed Set Variable TX Power Creating a sequence This section will cover setting defaults creating address variables initializing the traffic parameters and creating sequence commands These actions mirror the structure of a typical sequence shown below Structure of a typical sequence 1 Comment identifying the sequence 2 3 Create address variables 4 Main body of sequence multiple sequence commands Initialize the traffic parameters 5 End of sequence Setting defaults The defaults allow a sequence writer to set values once that will be used for subsequent commands The defaults are set at the start of frame creation 36 VeriWave Inc All rights reserved WaveTest User s Manual Even with the default values set individual commands can over ride the values for an individual frame Figure 3 shows the Defaults panel from the WaveTest user interface Figure 3 Defaults Panel Channel defaults channel 1 _ Da
109. ssociation Request eene tnde de aa EE dee e e EE E EEE A vao eaS ENSEN Dra EEEREN eld 104 Reassociation Response neuere nere Tete endete re deberet ed Ede ETS EEn Redon AEE EEs SE REE 107 Dae E ELLE 110 Sequence Control Commands eese eene entente ESE eS Vaea PE SEn EA DUAE treten tren trennen trente 112 ASSOrt THIS BOF qu 112 Collide AMICUS 113 Goini PE EE 115 Dec E tcp 116 End of Subroutine creen eee neret dede e ERKENE SEEE Vie EE EE Ue PR RETE EVE e e ea ade SEE iS 117 EOT End of Test PH I JP H MEPMRES Log Control Please make changes in the screenshot and the description of the fields if it is changed in the latest release E tanta ain ete eire rie dete edo ote dp eet ete e qe etin Error Bookmark not defined Iain lup M 123 Multi wart for P AE LLLI DLL LDLLDLLM ES 124 Cenni KS 126 SUBLOUEIME ERR tasees doses 127 Pam Market ou REI IER NEUE NET RIA UE IEEE NE UM ies 128 Wait for Frainne MP teen 129 Walt fOr Time C HM 131 Wait for THPEeet 55e tee ede es cae dues det bem ao figi em e nter o tree deg 132 Parameter Commands tee e EE ER ret GE cov
110. st Point is not functioning S jack is Verify that Test Point is powered on o Power cycle the Test Point and observe the Green Power LED It should remain on for several seconds and then begin slowly flashing during the process of connecting to the Ethernet Following this the LED will remain on Ethernet cable is disconnected or is defective Check connections between Test Point and Ethernet hub or switch Verify that the Ethernet cable length does not exceed 328 feet 100 m Replace Ethernet cable Ethernet hub or switch is malfunctioning 32 VeriWave Inc All rights reserved WaveTest User s Manual Troubleshooting Chart Check that the Ethernet hub or switch to which the Test Point is attached is powered on and configured for the correct mode Attach Test Point directly to control computer via a cross over cable and check whether Link LED lights Network Connection Problems Symptom Cause Solution No Test Points Test Points not connected to same Ethernet LAN appear in Group segment as control computer Test Point Verify network topology between Test Points and Display window control computer of user interface Ensure that a router is not interposed between Test Points and control computer If a hub or switch is available connect control computer and Test Points to it and connect its uplink port to the rest of the LAN DHCP server is absent or mis configured
111. st Points eene E reee Eea e tasko T o E SEEE EEEa EEEE EEEE EEE SETETE NEEE aSa 47 Running Sequences and Test Point Groups eeseeseseeeeeeeeeeeeeeneene eee enne nennen ne enne trennen enne 48 Dealing with the test environment sese netnen eene trennt tre A stern ne enne trennen enne 49 Multiple Eest Point Operation m oen Het e pO RC Saat eee HE Fere eir Pl ee Ere tr ee tn 51 lepide neis 51 Configure 9roups oen e ed Re Fitted rer thes ecd fret e det be Pere hs eds 52 Chapter 72 Logs Qutputs and Reports ce eee ree e e eem tete He oie eit 53 Logeime test results nitet e dt RE ru ed detener etr i ite pcne exei Pee rto ete 53 Logging in the Wavelest SySterm s ecce tet eer itte PH ee Her ere nt etes Ie RS 53 Enabling and disabling loggg eiat ete tete rerit er i ie utebare tests 54 Vie WING ALi Saving ops aer eret rte en entr eer t pe een teneret tede here 54 Output Files Generated by WaveTest tese eee t ee ee e tret 55 TheLog File ioter ee ret e ene p em tede 55 Export t Bthereal o eee t eire ERI RERO p EU SEEE ESEESE tg 56 Report Genera tl Ones sse ete e eet rie tee nte ee n wer eet ete ett ede tete 56 Chapter 8 Command Refererice ooa evo ene er RU e e EU p Ep ere rial 60 Common Control Eields une Ce dot e e ER HER EG EUH HARE 60 Frame Control eee eu ree D Oe ERE Te ODIO E EEEE a E ESEESE 60 Sequence Controls ire a RE e CUR i ERU
112. t Cancel FIELDS Comment Enter your comment as text in this field The text will appear in the sequence list window as a comment VeriWave Inc All rights reserved 115 WaveTest User s Guide Dec Loop This command defines a decrement and loop construct A user variable is used as the counter and is automatically decremented and then compared to 0 When the count is greater than 0 sequence control is sent to the subroutine or label When the count reaches 0 control is sent to the next command in the sequence 3 Decrement and Loop m Decrement Variable When gt 0 Goto 4 d Lex Cancel FIELDS Decrement Variable Any of the user defined integer variables The dropdown list contains all currently defined variables When 0 Goto Value is name of a defined label or subroutine to which control is transferred if the count is gt 0 The dropdown list contains all the currently defined values A new value can be entered but it must then be defined using the Set Variable command 116 VeriWave Inc All rights reserved WaveTest User s Manual End of Subroutine This command defines the end of a subroutine EJ End of Subroutine ial Subroutine Name Lex Cancel FIELDS Subroutine Name Value is name of a defined subroutine The dropdown list contains all the currently defined subroutine names The name should correspond to the name of the
113. t E addrs prem addrs any addrs user specified 0 00 01 00 00 00 Seq Num D Frag Num Ctrl user specified 4 Fragment Num error FCS obey defer Cancel FIELDS Frame Control Two byte value for the Frame Control field The format is byte0 bytel See Frame Control sub command for details Duration Two byte value for the duration field The format is byte0 bytel Bit 15 must be 0 for this frame DA Destination Address The DA field contains an IEEE MAC individual or group address that identifies the MAC entity or entities intended as the final recipient of the MSDU or fragment thereof contained in the frame body The value is selected from one of the addresses defined with the Address command SA Source Address The SA field contains an IEEE MAC individual address that identifies the entity from which the transfer of the MSDU or fragment thereof contained in the frame body was initiated The value is selected from one of the addresses defined with the Address command 66 VeriWave Inc All rights reserved WaveTest User s Manual BSSID This field provides a unique identifier for the BSS inof the form of an IEEE MAC address In infrastructure BSS mode this value is the MAC address of the AP The value is selected from one of the addresses defined with the Address command Sequence Control Fields These fields are used to set the 16 bit Sequence control fields See the Seq
114. t VeriWave Technical Support for instructions on uploading the file to the VeriWave support site For issues that appear to be related to a problem in the Test Point hardware please complete the following steps 1 If possible try running the test using a different Test Point to verify the problem is hardware related 2 Call VeriWave Technical Support to get a Return Materials Authorization RMA number Hold the Test Point in question until new unit arrives 4 Test the new Test Point Make sure that you have a working system before shipping back the Test Point in question VeriWave Inc All rights reserved 7 WaveTest User s Guide 5 Ship broken unit back to VeriWave with the RMA number Return shipping instructions will be included with the replacement unit Copyright and Trademark notices This work is copyrighted and constitutes the property of VeriWave Inc All rights are reserved VeriWave authorizes only reproduction for use by the personnel of the WaveTest licensee VeriWave and WaveTest are trademarks of VeriWave Inc All other brand or product names are trademarks or registered trademarks of their respective owners VeriWave Inc All rights reserved WaveTest User s Manual Chapter 2 Description of Equipment List of materials in the WaveTest System A WaveTest system is comprised of one or more WT1xxx Test Points associated hardware and the software to control the system Each Test Point inclu
115. ta Payload defaults Payload Type aloes Payload size _ Random size Random Seed Inter Frame Spacing sifs 2 3 pifs 4 difs 4 5 eifs 8 Pseudo Random Backoff min backoff time 0 3 max backoff time fo 2 Frame Control defaults Protocol vers 0 ADS ibss more retry PWR management more ose Security defaults wep on wep id Management defaults cm defaults ESS IBSS cf pollable cf poll req privacy reserved 0 A ssip ascii Supported rates 82 84 86 96 Association defaults j Listen Interval fi 4 AID fi E Status Code o E Reason Code fi 2 Current AP TREE AR AEA auto detect Authentication defaults Auth Algo O Open System Auth Trans 1 A Challenge Text Beacon and Frame defaults Timestamp auto gen Beacon Interval f1 E ATM10 4 FIIIT a F Traffic Generator Defaults Filter Specification The values that can be set as default are Channel Defaults Channel Data Payload Defaults VeriWave Inc All rights reserved 37 WaveTest User s Guide Payload type select from possible data patterns Payload size Random size selecting this allows for data payload to be of random size Random seed selects the seed value used in random data generation Inter Frame Spacing SIFS PIFS DIFS EIFS Min max Backoff time Pseudo Random Backoff Frame Control Defaults Protocol vers DS More Frag Retry PWR management More
116. ta form The ASCII characters are converted to hex values in the frame body field VeriWave Inc All rights reserved 99 WaveTest User s Guide Time Stamp ed fe ed fe ed fe ed fe E Beacon Interval um 4 Capability Information on y SSID ASCII Y r Supported Rates sss 7 FH Parameter Set 00 00 00 00 00 A r DS Parameter Set Channel 1 2412MHz E r CF Parameter Set 00 0a e8 03 00 00 E J IBSS Parameter Set TU D0 00 J Lex Cancel Auto Insert Timestam Selecting this button causes the TimeStamp field to be set based on the current time as seen by the WT1xxx Error FCS Select this to force an FCS error to be generated with the frame Obey Defer Select this to cause the frame to defer transmission until there is no contention indicated The frame will be transmitted tx defer value after the channel is determined to be clear See IFS Values command for explanation of tx defer value Affect on log file Complete command inserted in log file at estimated send time 100 VeriWave Inc All rights reserved WaveTest User s Manual PS Poll Generate a PS Poll frame t3 PS poll Frame m PS Pall Frame Control Duration BSS ID TA 24 00 d7 c7 any addrs any addrs A AID overwrite error FCS obey defer Lex Cancel FIELDS Frame Control Two byte value for the Frame Control field The format is byte0 bytel See Frame Control sub comma
117. th Chapter 4 provides more information on the control flow capabilities of sequences Multiple Test Point operation A test system utilizing multiple WT1xxx Test Points is not significantly more difficult to set up and use than a system using a single Test Point The setup principally consists of positioning and connecting the additional Test Points and then using the WaveTest software to execute sequences on all Test Points simultaneously The WaveTest software provides facilities for grouping Test Points so that multiple sources and sinks of traffic can be controlled as a single unit and results can be displayed in a consistent coordinated view Equipment setup Equipment setup for multiple Test Point operation is relatively straightforward The additional Test Points are first positioned within the environment for open air testing or stacked as desired next to the DUT for cabled or shielded testing The necessary cables are then connected As previously noted user provided RF cables and a combiner are necessary for multiple Test Point operation in a cabled environment Once the system has been set up and powered on the WaveTest application should automatically detect and display the additional Test Points in the Group TestPoint display It may be necessary to wait for up to 5 minutes for all of the WT1xxx Test Points to obtain IP addresses from the DHCP server and then respond to polling from the WaveTest software If one or more Test
118. the Sequences list in the Group TestPoint display Right click Copy for File Link Next select the Test Point and right click Paste File Link The sequence name should now appear in the Session File column for the selected Test Point A shortcut to this process is available when opening a sequence file By selecting the Test Point in the Group TestPoint display and then click Open the opened sequence will automatically be associated with the selected Test Point Running Sequences and Test Point Groups When Test Points are identified by the WaveTest software they are placed in groups based on the connectivity of the timing cables All Test Points that are connected in a daisy chain using the timing cables are placed in the same group When the software is first started a group called Default is formed and all connected Test Points are placed in this group Test execution is done at the group level This ensures that all Test Points are synchronized when multiple Test Points are involved To run a test enable all Test Points that are to participate in the test using the checkbox provided next to each Test Point in the Group TestPoint display Likewise disable all Test Points that are not going to participate in the test See Figure 4 Group Test Point Display If more than one Test Point is contained in the group but only a single Test Point is going to be used for the test the other Test Point s must be disabled before starting the test Th
119. tions of your company The system allows the easy migration to new RF standards with a inexpensive upgrade capability Also the capability of the system is continually being enhanced with new software test suites for testing specific new areas or standards Spans from lab bench to customer site The VeriWave architecture on which WaveTest is based has the flexibility and robustness to seamlessly work from the engineer s test bench in the factory all the way through to the customer site to capture actual traffic and conditions of the user This allows lab results to be corroborated with actual usage and to bring difficult issues from the customer site back to the lab bench for analysis Supports Open Air and Cabled Testing By providing both distributed open air testing and cabled configurations WaveTest enables nearly all test scenarios Open air testing allows testing that matches how your customer uses the equipment and is critical to debugging any issues where there is an interaction with the antenna This allows for reliable testing with advanced antennas such a MIMO patch or other advanced products Cabled testing allows the use for manufacturing applications or testing in noisy RF environments This can be critical for these cases for getting reliable and repeatable results Spatially aware The coordinated multi point architecture allows the creation of virtually any test configuration including hidden node multiple BSS near far
120. to indicate the next time at which a beacon is to be sent the Target Beacon Transmission Time or TBTT Subsequent wait for frame commands can then utilize this pre set marker in their timeouts guaranteeing that the sequence will be ready to transmit a beacon at or as soon after as possible the TBTT j Time Marker BAX Set time marker fo usec delta from current time Cancel FIELDS Set Time Marker This is the delta value of time from the current sequence time at which the time marker will be set The value is in microseconds 128 GOVeriWave Inc All rights reserved WaveTest User s Manual Wait for Frame This command allows the execution of a test sequence to be dependent on receiving a specific frame A number of frame fields can be used to create a specific frame type match This command is useful when looking for expected results from a previous transmission f and or executing a set of commands based on the results la t3 Wait For Frame Sequence m Wait for frame where Frame Match frame control duration address 1 address 2 address 3 seq control address 4 payload 80 B any_addrs fany_addrs fany_addrs any_addrs f with a timeout of 10000 c goto label 4 uSec from current time Lox Cancel FIELDS Frame Control Mask This field can contain either an explicit two byte mask or variable name This field matches the Frame Control field of an 802 11 frame The b
121. tor for other testing configurations Power LED A green colored LED that indicates the Test Point is receiving power Rear Panel Connections External trigger in EXT TRG IN A BNC connector for connecting the Test Point to other test equipment The signal received at this connector can be used to control the execution of a test sequence External trigger out EXT TRG OUT A BNC connector for connecting the Test Point to other test equipment The signal transmitted on this connector is controlled as part of the test sequence Auxiliary connector AUX A connector provided for future expansion Ethernet connector RJ 45 connector provides for a 10 base T Ethernet network connection of the Test Point This connects the Test Points to the WaveTest Software on the user provided PC Multi Test Point Synchronization connectors 10 VeriWave Inc All rights reserved WaveTest User s Manual Cables Antennas Two RJ 45 connectors that are used to precisely synchronize the operation of the Test Points The connector on the left 1 is the Sync In connector The connector on the right 2 is the Sync Out connector The Sync Out connector of one Test Point is connected to the Sync In connector of another Test Point Power connection A connector provided to connect to the 5V output of the power adaptor Timing cable A 25 meter cable that is terminated with a shielded RJ 45 plug The cable is used to connect two Test Points
122. toring tests and logging test results Basic operation The basic process of testing a WLAN system using WaveTest takes the following steps STEP 1 Setup connect and configure the equipment STEP2 Build test sequences or open sequences that have already been created STEP3 Run the test by commanding the system to download the sequences to the WT1xxx Test Points and execute them there STEPA4 Review test results and save them as necessary for future use Equipment setup Prior to running tests the desired number of WT1xxx Test Points should be placed at the desired locations and interconnected as described in Chapter 4 If an open air test is required then Test Points should be positioned at predetermined locations within the environment for cabled tests however the Test Points may be stacked on top of each other and connected to the Device s Under Test by means of cables In either case the connections required are the same In addition to VeriWave supplied equipment the user is required to provide a Windows based PC or laptop for running the user interface software an Ethernet network which can be as simple as a standard switch or hub interconnecting the Test Points with the PC or laptop and a DHCP server of some type that is accessible to the Test Points and which is configured to provide IPv4 addresses upon request The Test Points will not run unless these pieces of equipment are provided and fully functi
123. transmitted frames More Data Single bit value used to indicate that more MSDUs or MMPDUs are buffered for a STA in power save mode Set to 1 to indicate that buffered data exists for the STA or when additional broadcast multicast MDSUs or MMPDUs remain to be transmitted by an AP Set to 0 in all other frames WEP Single bit value used to indicate Wired Equivalent Privacy WEP in frame body field Set to 1 to indicate that the WEP algorithm has processed the frame body field Used in data frames and Authentication management frames Set to 0 in all other frames VeriWave Inc All rights reserved 61 WaveTest User s Guide Order Single bit value used to in data type frames Set to 1 to indicate that the data is being transferred using the StrictlyOrdered service class Set to 0 in all other frames Sequence Controls This section of the frame command corresponds to the 2 byte Sequence Control field common to all 802 11 frames It is used to set the sequencing in multi frame transfers when fragmentation is used and to identify retransmitted frames Frag Num Ctrl user specified Fragment Num FiELDS Seg Control Frag Ctrl This field controls how the fragment number is generated for the frame Possible values are e Auto reset Causes the fragment number to be reset to 0 e Auto increment Increments the fragment number by 1 Use this value in the 2 and subsequent fragments of multi frame sequences
124. ts from running the WaveTest system Each log contains an accurate time ordered listing of all received and transmitted packets from one or more WT1xxx Test Points Each line of the log represents a single event In addition to packet information the following special entries also appear in the log file VeriWave Inc All rights reserved 55 WaveTest User s Guide Table 2 Special Log Entries Log Entry Type Explanation Logging Enabled Disabled Indicates the time when logging is either started enabled or stopped disabled Logging RF Anomaly Enabled Indicates the time when the RF ANOMALY Disabled logging is either enabled or disabled This corresponds to the event in the sequence file Logging RX Threshold Indicates the time when the RX threshold level is explicated RF ANOMALY START Indicates the start time of a RF event that the WT1xxx radio could not decode This could be a source operating on the selected channel RF ANOMALY END Indicates the end time of the RF event that started with the RF ANOMALY START event Log Value Indicates the time when a log value event was reached in the sequence file The value of the log event is also given When 2 or more WT1xxx Test Points are used in a test scenario a combined log file is created The combined file creates a time order list of events from all Test Points Because all Test Points are time synchronized the combined log is an accurate recording of events Export to
125. tx crc flag 0 tx_src_linenum 0 rf_synch 0 groupid 4342338 curr_channel 0 curr_tx_power 0 curr_tx_speed 0 log_value 0 log_control 0 rx_something 0 tx_data 0 tx_start 0 seq_cmd 0 internal_error 0 log_val_counter 0 rx_fcontrol 0 tx_fcontrol 0 channel_var rf_node_sync 0 rf node id 0 clock_check_msg 0 mcm_msg_infol 0 mcm msg info2 0 VeriWave Inc All rights reserved 59 WaveTest User s Guide Chapter 8 Command Reference Many fields in the command structure are common to the commands These are discussed in the following section and are referenced in the individual command explanations Common Control Fields 60 Frame Control This is first field in all Frame generation commands This field is 2 octets wide and can be in either bit format b t0b t1 b t15 or hex format 5byte0 byte1 Double click on the frame control field to pull up the Frame Control Form ij Frame Control Protocol Version oo Type SubType foo 0001 Management Association respo To DS From DS po Direct data frame from STA to STA More Fragments fo Default Retry p Default Pwr Mgnt p STA active mode and AP s More Data fo All other directed frames WEP p Default Order p Default Lex Cancel FIELDS Protocol Version This field holds a 2 bit value containing the 802 11 protocol version The only legal value is 00 but other values can be set for test purposes
126. uence Control Sub command for details Error FCS Select this to force an FCS error to be generated with the frame Obey Defer Select this to cause the frame to defer transmission until there is no contention indicated The frame will be transmitted tx defer value after the channel is determined to be clear See IFS Values command for explanation of tx defer value Body The body field contains a hex value in byte format byteO bytel byte2 The definitions of the bytes are shown in the table below Table 5 Association Request Data Number of Octets Information Format 2 Capability Information b0 b1 2 Listen Interval b2 b3 3 SSID 00 length lt value gt 3 Supported Rates 01 lt length gt lt value gt Double clicking on the body field brings up the following data form This form can be used to fill out the body field VeriWave Inc All rights reserved 67 68 WaveTest User s Guide ig Association Request Data Capability Information foo 00 Listen Interval pi 00 SSID ASCII A Supported Rates 62 84 86 96 E Lex Cancel Double clicking on the Capability Information field brings up an additional form for setting the capability information element Double clicking on the Supported Rates field brings up an addition form for setting the supported rates information element Affect on log file Complete command inserted in log file at estimated
127. uipped Windows laptop or personal computer and communicates with and controls one or more Test Points It is expected that the VeriWave software has been installed on the Windows computer and verified using the procedure described in Chapter 4 The first step is to invoke the WaveTest application and bring up the main WaveTest user interface window This window enables the user to view the status of all of the Test Points present in the system to create test sequences to execute test sequences and view results and to save both sequences and results to files for future use Invoking the application is done by simply double clicking on the WaveTest icon that is placed on the desktop during installation or by selecting the WaveTest program shortcut under the Start menu VeriWave Inc All rights reserved 45 Test Point Listing Group TestPoint Display WaveTest User s Guide The WaveTest user interface presents four main windows as shown following figure EJ waveTest in the File Edit View Cee ae 00 60 35 00 de bb stopped 00 60 35 00 de bb seq 00 60 35 00 e8 6c stopped 00 60 35 00 e8 6c DRE 35 00 de be stopped 00 60 35 00 de be 00503500 stop roup TESEPOTEDisplay ar ar ar TestPoint Sequence Window Sequence Cmd sync Address Variable ap1 Set Channel 4 Data Rate 1 Mb s Wait for 00 1000 frame Sequence Listing Selection Tabs Et Sequences segl FE e R ee
128. using the multi Test Point synchronization connectors The timing cables are precisely measured and calibrated for the use in the WaveTest system Do not substitute other cables If a longer cable is required for a particular test contact VeriWave Technical Support Ethernet cable A 10 foot cable terminated with an unshielded RJ 45 plug for connecting the Test Points to a network The cables can be used with the Ethernet connector on the Test Point If a longer or shorter cable is desired another cable can be substituted An omni directional antenna with an SMA connector The antenna can be used on the Antenna connector of the front of each Test Point Other antennas can be substituted for those provided with the system Power adaptors Provided to power each Test Point The power adaptors are used with the power connection on the back of each Test Point VeriWave Inc All rights reserved 11 WaveTest User s Guide Software All of the software for the WaveTest system is included on the system CD This includes both the software that runs on the Windows based controller PC and example test sequences The Windows based software includes Test Point control Sequence generation Logging of frames and interference Report generation Example test sequences are included for Authentication and Association to an AP Authentication and Association to a Client device RTS CTS exchange Fragmentation Power Save Mode Docum
129. wo select a command or number of commands in the sequence window then select Edit Cut from the menu The selected commands are placed into the clipboard buffer To insert the commands from the clipboard buffer click on the command in the sequence just before where you want to insert the commands Then select Edit 2 Paste from the menu All of these commands are also available by using the right mouse button Deleting a specific command To delete a command single click on the command that you want to delete The command is highlighted in the display Then click on the Edit pull down tab at the upper left portion of the main display and select the delete command The delete command is also available by using the right mouse button Saving and loading sequences A sequence is easily saved to or retrieved from the control computer file system Sequence files are given a vws extension to identify them as VeriWave sequence files Saving a sequence To save a sequence for future use select the sequence from the sequence file listing in the Group TestPoint display and click on the Save button The Save Dialog window is presented VeriWave Inc All rights reserved 41 WaveTest User s Guide Create Dir Delete File Rename File C Documents and Settings Carl Brown 1 A viminfo zx My Documents zip Application Data NTUSER DAT Cookies ntuser dat L OG Desktop ntuser ini Favorites PUTTY RND Local Settings
130. y the associated sequence file contents The TestPoint Sequence Window displays the contents of the selected sequence command file To select a sequence file highlight it from the Sequences list in the Group TestPoint Display using the left mouse button When a sequence is associated with a Test Point it will also be displayed when the Test Point is highlighted The Log Window displays the results of a test run The central window pane contains a number of functions that are selectable through the Tabs at the bottom of the window The following Tab Functions are available o AP Traffic a palette of command buttons used to generate frames and control test sequences to emulate AP behavior o Client Traffic a palette of command buttons used to generate frames and control test sequences to emulate client behavior o IBSS Traffic a palette of command buttons used to generate frames and control test sequences to emulate IBSS behavior o Defaults enables the user to change a set 802 11 parameter defaults used during the interactive creation of sequences o Counters A two window display The left window displays a list of traffic counters as seen from the selected Test Point The right window displays various status values from the selected Test Point o Filter Specification Not Implemented o 39 D View is intended for future use in order to display the physical location of the Test Points in the system Associ
131. yte format is byte0 bytel Double clicking on the field will bring up the Frame Control Form NOTE Valid byte mask values are Wildcard matches any byte value If there is only a single the whole field is matched XX Matches on the byte value XX The field is ignored It should not be coming out and thus a match is not attempted Duration Mask This field is a two byte mask matching the Duration field of the 802 11 frame The byte format is byte0 bytel NOTE Valid byte mask values are Wildcard matches any byte value If there is only a single the whole field is matched XX Matches on the byte value XX The field is ignored It should not be coming out and thus a match is not attempted VeriWave Inc All rights reserved 129 130 WaveTest User s Guide address 1 address2 address3 address4 These fields match the first three addresses fields of the 802 11 frame The value s are selected from one of the addresses defined with the Address command or a hex string variable created with the set command Sequence Control Mask This field is a two byte mask matching the Sequence Control field of the 802 11 frame The byte format is byte0 bytel NOTE Valid byte mask values are Wildcard matches any byte value If there is only a single the whole field is matched XX Matches on the byte value XX The field is ignored It should not be coming out and thus a match is not att

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