/sys$common/syshlp/LAN$HELP.HLB  —  XX SDA command, START  DEVICE  Examples
         (1) Start a TRANSMIT/VCI test on EWB:

 SDA> xx start device ewb/transmit=(vci,target=00-60-CF-21-4A-EA,count=100000,pipe=32)
 XX$SDA: Starting test on EWB
 XX$SDA: Starting test TRANSMIT on EWB
         Alignment   0           Chaining    0           Compare     0
         Count       100000      Duration    0           Flow        0
         User/PTY    00000560    Pipeline    32          Rate        0
         Size 1      33          Size 2      33          Stop on er  0
         Stop on lo  0           Wait        0           Fast xmt    0
         Fast recei  0           loopline    1           <>          0
         Targets 00-60-CF-21-4A-EA  00-00-00-00-00-00  00-00-00-00-00-00  00-00-00-00-00-00

         (2) Start a RECEIVE/VCI on EWB returning control to DCL:

 SDA> xx start dev ewb/rec=(vci,nowait)
 XX$SDA: loaded

 XXA0                                           GENERIC_SCSI        UCB: 818F1B40

 Device status:   00000010 online
 Characteristics: 0C040000 avl,idv,odv
                  00000000
 SUD Status       00000000

 Owner UIC [000001,000004]   Operation count          0   ORB address    8197CE40
       PID        00000000   Error count              0   DDB address    8197CC40
 Class/Type          C8/05   Reference count          0   DDT address    8124C1A0
 Def. buf. size        512   BOFF              00000000   SUD address    8197CD40
 DEVDEPEND        00000000   Byte count        00000000   CRB address    8197CCC0
 DEVDEPND2        00000000   SVAPTE            00000000   I/O wait queue 818F1BF8
 DEVDEPND3        8197C940   DEVSTS            00000000
 FLCK index             3A
 DLCK address     810C2600

         *** I/O request queue is empty ***
 XX$SDA: Starting test on EWB
 XX$SDA: Starting test RECEIVE. on EWB
         Alignment   0           Chaining    0           Compare     0
         Count       0           Duration    0           Flow        0
         User/PTY    00000560    Pipeline    1           Rate        0
         Size 1      33          Size 2      33          Stop on er  0
         Stop on lo  0           Wait        0           fast xmt    0
         Fast recei  0           loopline    1           <>          0
         Targets 00-00-00-00-00-00  00-00-00-00-00-00  00-00-00-00-00-00  00-00-00-00-00-00
 SDA> xx show

         3.- Starts a LOOP/VCI on EWB returning control to DCL

 SDA> xx start dev ewb/loop=(vci,target=00-60-CF-21-4A-EA,count=1000,pipe=64,loopline=600000,nowait)
 XX$SDA: Starting test on EWB
 XX$SDA: Starting test LOOP. on EWB
         Alignment   0           Chaining    0           Compare     0
         Count       1000        Duration    0           Flow        0
         User/PTY    00000560    Pipeline    64          Rate        0
         Size 1      33          Size 2      33          Stop on er  0
         Stop on lo  0           Wait        0           fast xmt    0
         Fast recei  0           loopline    600000      <>          0
         Targets 00-60-CF-21-4A-EA  00-00-00-00-00-00  00-00-00-00-00-00  00-00-00-00-00-00
 SDA>

 XX$SDA: Device Information XXA0: UCB = 81CB13C0
 %SDA-W-NOREAD, unable to access location 00000000.00000000
 VCIB address        81CB1640            Test IRP            00000000
 VCIB id             00000000            Test VCRP           81CB1700
 Port state          DISABLED            Portlock            81D300C0
 Active cpus         00000000            TEST IP             STOPPED
 fork pending        00000000            Fork Block          81CB1980
 rcv fork pending    00000000            RCV Fork block      81CB19B0
 <>                  00000000            VCRP queue          81CB19F0
 free vcrps          00000000            VCRP rcv queue      81CB1A00
 buffer offset       0000024E            header size         0000000E
 xmt outstanding     00000000            xmt rate            000003EE
 number of forks     001451CD            Physical address    Undefined
 MIN test size       00000042            Start time          00000000
 Failure status      00000000            failure RA          00000000
 loop outstanding    00000000            Unavail user buffe  00000000

 XX$SDA: Test Command Information:

 command address     81CB1520            Test device         EWB
 Target Address      00-60-CF-21-4A-EA   User                00000560
 function            00200000            function is         LOOP
 duration            00000000            count               000003E8
 align               00000000            chain               00000000
 compare             00000000            flow                00000000
 pipeline            00000040            rate                00000000
 loopline            000927C0            <>                  00000000
 size 1              00000021            size 2              00000021
 stop on error       00000000            stop on lost        00000000

 XX$SDA: Test status Information: decimal

 packets sent        1006                packets received    1006
 bytes sent          33198               bytes received      46276
 errors sent         0                   errors received     0
 compare-errors      0                   errors-lost         0
 sequence-errors     0                   start time          00A54037.45D273C5
 Soft tick           9765                <>                  00000000
 current-time        00000000.00000000   stop time           00A54037.45D784AF
 Kernel ticks        00000000.0000000D   spin ticks          00000000.00000000
 Idle ticks          00000000.00000037   start rscc          00061EDA.A557F2FE
 Stop rscc           00061EDA.A759F1A6   xmt rscc            00000000.16710C15

 XX$SDA: Test results Information: CPS = 1000000000

 duration            0.03                duration rscc       0.03
 Ker/intr/other tim  38.235 %            Spin Time           0.000 %
 Idle time           161.765 %           <>
 packets sent/sec    29.86 Kilo          packets received/s  29.86 Kilo
 bytes sent/sec      962.44 Kilo         bytes received/sec  1.34 Mega
 time/IO [usec]      33.4843             LAN time/IO [usec]  5.8478
 SDA>

         3.- Easy unicast loop task list

         a.- first login into a node
         b.- $ mc lancp show config ! to show a list of NICs
         c.- pick an adapter from the list

            VLAN26> mc lancp show config

           LAN Configuration:
           Device  Parent  Medium/User  Version  Link  Speed  Duplex Auto BufSize   MAC Address          Type      Description
           ------  ------  -----------  -------  ----  -----  ------ ---- ------- ----------------   ------------  -----------
           EWB0             Ethernet    X-61     Up    1000   Full   Yes   1500  00-60-CF-21-4A-EA  UTP DEGPA-TA

         d.- start up the receiver

          SDA> xx start dev ewb/receive=(vci,nowait)
          SDA> xx show                                 ! and

          search for the address in the line
          Physical address    00-60-CF-21-4A-EA

         e.- login into another node to initiate the transmitter on a given device

         SDA> xx start dev ewc/loop=(vci,target=00-60-CF-21-4A-EA,count=100)

         If the receiver does not receive, there is most likely a connectivity issue.

         4.- easy unicast with QIO

          Follow the same steps as the example above, but for
          the receiver enter a multicast address such as AB-00-00-05-00-00
          as follows

         receiver command:
         SDA> xx  start dev ewb/rec=(qio,multicast=AB-00-00-05-00-00,echo=header)

             Note that if the receiver is receiving before you started a sender
             then the multicast address is in use by another application.

         sender command

         SDA> xx start dev ewc/trans=(qio,target=AB-00-00-05-00-00,count=1,size=100)

         or more safely

         SDA> xx start dev ewc/trans=(qio,target=AB-00-00-05-00-00,count=0,size=100,rate=2)
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