Receiver sequence:

yukon(58)> netest.sgi -u -P -N -p 1910
socket with Window = 32739      real BUFFERSIZE: 32739
1 netest-r: npkt=64, pktlen=32739, port=1910, burst period=5000, pkt_delay=0
connected BUFFERSIZE: 32739
Receiving SYNC hdr [8] from Host: 131.243.2.35 (port 1376)

recv data pkt: 32739
lost packets = 64, recvfrom err=0
2 000001 buf_seq#:      
3  21.9601 sec. Thu Jul 27 14:16:53 2000 [from SYNC | start receiving bst]
4  22.0260 sec. Thu Jul 27 14:16:54 2000 [from SYNC | end of receiving bst]
6 0.000000 sec. clock diff from recv rle to send ('-' is recv faster) [W32739]
1 0.002911 Mbits (receiveing rate)

recv data pkt: 32739
lost packets = 64, recvfrom err=0
2 000002 buf_seq#:      
3  26.9570 sec. Thu Jul 27 14:16:58 2000 [from SYNC | start receiving bst]
4  27.0348 sec. Thu Jul 27 14:16:59 2000 [from SYNC | end of receiving bst]
6 0.000000 sec. clock diff from recv rle to send ('-' is recv faster) [W32739]
1 0.004936 Mbits (receiveing rate)

recv data pkt: 32739
lost packets = 64, recvfrom err=0
2 000003 buf_seq#:      
3  31.9440 sec. Thu Jul 27 14:17:03 2000 [from SYNC | start receiving bst]
4  32.0130 sec. Thu Jul 27 14:17:04 2000 [from SYNC | end of receiving bst]
6 0.000000 sec. clock diff from recv rle to send ('-' is recv faster) [W32739]
1 0.005564 Mbits (receiveing rate)

recv data pkt: 1472
   0   1   2   3   4   5   6   7   8   9  10  11  12  13  14  15
  16  17  18  19  20  21  22  23  24  25  26  27  28  29  30  31
  32  33  34  35  36  37  38  39  40  41  42  43  44  45  46  47
  48  49  50  51  52  53  54  55  56  57  58  59  60  61  62  63
2 000001 buf_seq#:      handle
3  175.4650 sec. Thu Jul 27 14:19:27 2000 [from SYNC | start receiving bst]
4  175.4686 sec. Thu Jul 27 14:19:27 2000 [from SYNC | end of receiving bst]
6 0.000000 sec. clock diff from recv rle to send ('-' is recv faster) [W32739]
1 207.309326 Mbits (receiveing rate)

recv data pkt: 1472
   0   1   2   3   4   5   6   7   8   9  10  11  12  13  14  15
  16  17  18  19  20  21  22  23  24  25  26  27  28  29  30  31
  32  33  34  35  36  37  38  39  40  41  42  43  44  45  46  47
  48  49  50  51  52  53  54  55  56  57  58  59  60  61  62  63
2 000002 buf_seq#:      handle
3  180.4650 sec. Thu Jul 27 14:19:32 2000 [from SYNC | start receiving bst]
4  180.4687 sec. Thu Jul 27 14:19:32 2000 [from SYNC | end of receiving bst]
6 0.000000 sec. clock diff from recv rle to send ('-' is recv faster) [W32739]
1 201.941086 Mbits (receiveing rate)
Receiving SYNC hdr [8] from Host: 131.243.2.35 (port 1380)

recv data pkt: 1500
   0   1   2   3   4   5
lost packets = 58, recvfrom err=0
2 000001 buf_seq#:      handle
3  191.5540 sec. Thu Jul 27 14:19:43 2000 [from SYNC | start receiving bst]
4  191.5687 sec. Thu Jul 27 14:19:43 2000 [from SYNC | end of receiving bst]
6 0.000000 sec. clock diff from recv rle to send ('-' is recv faster) [W32739]
1 4.906739 Mbits (receiveing rate)
   x   x   x   x   x   x   6
lost packets = 63, recvfrom err=0
2 000001 buf_seq#:      handle
3  191.5540 sec. Thu Jul 27 14:19:43 2000 [from SYNC | start receiving bst]
4  191.5697 sec. Thu Jul 27 14:19:43 2000 [from SYNC | end of receiving bst]
6 0.000000 sec. clock diff from recv rle to send ('-' is recv faster) [W32739]
1 0.776165 Mbits (receiveing rate)
strange packet without syc header 1500Segmentation fault (core dumped)


Sender sequence:
   124  netest -u -N -t yukon.mcs.anl.gov
   125  netest -u -P -N -t yukon.mcs.anl.gov -l 1472
   126  netest -u -P -N -t yukon.mcs.anl.gov -l 1500


Another host on that path:

goshen.mcs.anl.gov(54)>netest.sol -u -P -N -p 1910
socket with Window = 32768      real BUFFERSIZE: 32768
1 netest-r: npkt=64, pktlen=28752, port=1910, burst period=5000, pkt_delay=0
connected BUFFERSIZE: 32768
Receiving SYNC hdr [8] from Host: 131.243.2.35 (port 1382)

recv data pkt: 32739
   0   1
lost packets = 62, recvfrom err=0
2 000001 buf_seq#:      handle
3  14.7151 sec. Thu Jul 27 14:25:18 2000 [from SYNC | start receiving bst]
4  14.7809 sec. Thu Jul 27 14:25:18 2000 [from SYNC | end of receiving bst]
6 0.000000 sec. clock diff from recv rle to send ('-' is recv faster) [W32768]
1 7.961107 Mbits (receiveing rate)
   x   x   2
lost packets = 63, recvfrom err=0
2 000001 buf_seq#:      handle
3  14.7151 sec. Thu Jul 27 14:25:18 2000 [from SYNC | start receiving bst]
4  14.7980 sec. Thu Jul 27 14:25:18 2000 [from SYNC | end of receiving bst]
6 0.000000 sec. clock diff from recv rle to send ('-' is recv faster) [W32768]
1 3.162719 Mbits (receiveing rate)
strange packet without syc header 32739   x   x   x   3
recv data pkt: 32739
   4
lost packets = -1, recvfrom err=0
2 000001 buf_seq#:      handle
3  14.8244 sec. Thu Jul 27 14:25:18 2000 [from SYNC | start receiving bst]
4  14.8504 sec. Thu Jul 27 14:25:18 2000 [from SYNC | end of receiving bst]
6 0.000000 sec. clock diff from recv rle to send ('-' is recv faster) [W32768]
1 20.181231 Mbits (receiveing rate)

recv data pkt: 32739
   0   1

lost packets = 62, recvfrom err=0
2 000002 buf_seq#:      handle
3  19.7068 sec. Thu Jul 27 14:25:23 2000 [from SYNC | start receiving bst]
4  19.7725 sec. Thu Jul 27 14:25:23 2000 [from SYNC | end of receiving bst]
6 0.000000 sec. clock diff from recv rle to send ('-' is recv faster) [W32768]
1 7.977226 Mbits (receiveing rate)
strange packet without syc header 32739   x   x   2
recv data pkt: 32739
   3   4
lost packets = -1, recvfrom err=0
2 000002 buf_seq#:      handle
3  19.7870 sec. Thu Jul 27 14:25:23 2000 [from SYNC | start receiving bst]
4  19.8390 sec. Thu Jul 27 14:25:23 2000 [from SYNC | end of receiving bst]
6 0.000000 sec. clock diff from recv rle to send ('-' is recv faster) [W32768]
1 15.123598 Mbits (receiveing rate)
Receiving SYNC hdr [8] from Host: 131.243.2.35 (port 1384)

recv data pkt: 1472
   0   1   2   3   4   5   6   7   8   9  10  11  12  13  14  15
  16  17  18  19  20  21  22  23  24  25  26  27  28  29  30  31
  32  33  34  35  36  37  38  39  40  41  42  43  44  45  46  47
  48  49  50  51  52  53  54  55  56  57  58  59  60  61  62  63
2 000001 buf_seq#:      handle
3  69.3658 sec. Thu Jul 27 14:26:13 2000 [from SYNC | start receiving bst]
4  69.3741 sec. Thu Jul 27 14:26:13 2000 [from SYNC | end of receiving bst]
6 0.000000 sec. clock diff from recv rle to send ('-' is recv faster) [W32768]
1 90.512970 Mbits (receiveing rate)

recv data pkt: 1472
   0   1   2   3   4   5   6   7   8   9  10  11  12  13  14  15
  16  17  18  19  20  21  22  23  24  25  26  27  28  29  30  31
  32  33  34  35  36  37  38  39  40  41  42  43  44  45  46  47
  48  49  50  51  52  53  54  55  56  57  58  59  60  61  62  63
2 000002 buf_seq#:      handle
3  74.3490 sec. Thu Jul 27 14:26:18 2000 [from SYNC | start receiving bst]
4  74.3572 sec. Thu Jul 27 14:26:18 2000 [from SYNC | end of receiving bst]
6 0.000000 sec. clock diff from recv rle to send ('-' is recv faster) [W32768]
1 91.822701 Mbits (receiveing rate)
Receiving SYNC hdr [8] from Host: 131.243.2.35 (port 1386)

recv data pkt: 1478
   0   1   2   3   4   5
lost packets = 58, recvfrom err=0
2 000001 buf_seq#:      handle
3  82.4144 sec. Thu Jul 27 14:26:26 2000 [from SYNC | start receiving bst]
4  82.4226 sec. Thu Jul 27 14:26:26 2000 [from SYNC | end of receiving bst]
6 0.000000 sec. clock diff from recv rle to send ('-' is recv faster) [W32768]
1 8.642054 Mbits (receiveing rate)
   x   x   x   x   x   x   6
lost packets = 63, recvfrom err=0
2 000001 buf_seq#:      handle
3  82.4144 sec. Thu Jul 27 14:26:26 2000 [from SYNC | start receiving bst]
4  82.4237 sec. Thu Jul 27 14:26:26 2000 [from SYNC | end of receiving bst]
6 0.000000 sec. clock diff from recv rle to send ('-' is recv faster) [W32768]
1 1.290378 Mbits (receiveing rate)
strange packet without syc header 1478   x   x   x   x   x   x   x   7
recv data pkt: 1478
   8
lost packets = -1, recvfrom err=0
2 000001 buf_seq#:      handle
3  82.4246 sec. Thu Jul 27 14:26:26 2000 [from SYNC | start receiving bst]
4  82.4246 sec. Thu Jul 27 14:26:26 2000 [from SYNC | end of receiving bst]
6 0.000000 sec. clock diff from recv rle to send ('-' is recv faster) [W32768]
1 762.838745 Mbits (receiveing rate)
   x   x   x   x   x   x   x   x   x   9
2 000001 buf_seq#:      handle
3  82.4246 sec. Thu Jul 27 14:26:26 2000 [from SYNC | start receiving bst]
4  82.4253 sec. Thu Jul 27 14:26:26 2000 [from SYNC | end of receiving bst]
6 0.000000 sec. clock diff from recv rle to send ('-' is recv faster) [W32768]
1 15.598945 Mbits (receiveing rate)
   x   x   x   x   x   x   x   x   x   x   x   x   x  13
2 000001 buf_seq#:      handle
3  82.4246 sec. Thu Jul 27 14:26:26 2000 [from SYNC | start receiving bst]
4  82.4260 sec. Thu Jul 27 14:26:26 2000 [from SYNC | end of receiving bst]
6 0.000000 sec. clock diff from recv rle to send ('-' is recv faster) [W32768]
1 8.000000 Mbits (receiveing rate)
   x   x   x   x   x   x   x   x   x   x   x   x   x   x   x   x
   x   x   x  19
2 000001 buf_seq#:      handle
3  82.4246 sec. Thu Jul 27 14:26:26 2000 [from SYNC | start receiving bst]
4  82.4267 sec. Thu Jul 27 14:26:26 2000 [from SYNC | end of receiving bst]
6 0.000000 sec. clock diff from recv rle to send ('-' is recv faster) [W32768]
1 5.514925 Mbits (receiveing rate)
   x   x   x   x   x   x   x   x   x   x   x   x   x   x   x   x
   x   x   x   x   x   x   x   x   x   x  26
2 000001 buf_seq#:      handle
3  82.4246 sec. Thu Jul 27 14:26:26 2000 [from SYNC | start receiving bst]
4  82.4275 sec. Thu Jul 27 14:26:26 2000 [from SYNC | end of receiving bst]
6 0.000000 sec. clock diff from recv rle to send ('-' is recv faster) [W32768]
1 4.075836 Mbits (receiveing rate)
   x   x   x   x   x   x   x   x   x   x   x   x   x   x   x   x
   x   x   x   x   x   x   x   x   x   x   x   x   x   x   x   x
   x   x  34
2 000001 buf_seq#:      handle
3  82.4246 sec. Thu Jul 27 14:26:26 2000 [from SYNC | start receiving bst]
4  82.4281 sec. Thu Jul 27 14:26:26 2000 [from SYNC | end of receiving bst]
6 0.000000 sec. clock diff from recv rle to send ('-' is recv faster) [W32768]
1 3.286270 Mbits (receiveing rate)
   x   x   x   x   x   x   x   x   x   x   x   x   x   x   x   x
   x   x   x   x   x   x   x   x   x   x   x   x   x   x   x   x
   x   x   x   x   x   x   x   x   x  41
2 000001 buf_seq#:      handle
3  82.4246 sec. Thu Jul 27 14:26:26 2000 [from SYNC | start receiving bst]
4  82.4290 sec. Thu Jul 27 14:26:26 2000 [from SYNC | end of receiving bst]
6 0.000000 sec. clock diff from recv rle to send ('-' is recv faster) [W32768]
1 2.652310 Mbits (receiveing rate)
   x   x   x   x   x   x   x   x   x   x   x   x   x   x   x   x
   x   x   x   x   x   x   x   x   x   x   x   x   x   x   x   x
   x   x   x   x   x   x   x   x   x   x   x   x   x   x   x   x
  48
2 000001 buf_seq#:      handle
3  82.4246 sec. Thu Jul 27 14:26:26 2000 [from SYNC | start receiving bst]
4  82.4297 sec. Thu Jul 27 14:26:26 2000 [from SYNC | end of receiving bst]
6 0.000000 sec. clock diff from recv rle to send ('-' is recv faster) [W32768]
1 2.287926 Mbits (receiveing rate)
   x   x   x   x   x   x   x   x   x   x   x   x   x   x   x   x
   x   x   x   x   x   x   x   x   x   x   x   x   x   x   x   x
   x   x   x   x   x   x   x   x   x   x   x   x   x   x   x   x
   x   x   x   x   x   x   x   x  56
2 000001 buf_seq#:      handle
3  82.4246 sec. Thu Jul 27 14:26:26 2000 [from SYNC | start receiving bst]
4  82.4306 sec. Thu Jul 27 14:26:26 2000 [from SYNC | end of receiving bst]
6 0.000000 sec. clock diff from recv rle to send ('-' is recv faster) [W32768]
1 1.946658 Mbits (receiveing rate)
   x   x   x   x   x   x   x   x   x   x   x   x   x   x   x   x
   x   x   x   x   x   x   x   x   x   x   x   x   x   x   x   x
   x   x   x   x   x   x   x   x   x   x   x   x   x   x   x   x
   x   x   x   x   x   x   x   x   x   x   x   x   x   x   x  63
2 000001 buf_seq#:      handle
3  82.4246 sec. Thu Jul 27 14:26:26 2000 [from SYNC | start receiving bst]
4  82.4318 sec. Thu Jul 27 14:26:26 2000 [from SYNC | end of receiving bst]
6 0.000000 sec. clock diff from recv rle to send ('-' is recv faster) [W32768]
1 1.623507 Mbits (receiveing rate)

recv data pkt: 1478
   0   1   2   3   4
lost packets = 59, recvfrom err=0
2 000002 buf_seq#:      handle
3  87.4159 sec. Thu Jul 27 14:26:31 2000 [from SYNC | start receiving bst]
4  87.4239 sec. Thu Jul 27 14:26:31 2000 [from SYNC | end of receiving bst]
6 0.000000 sec. clock diff from recv rle to send ('-' is recv faster) [W32768]
1 7.433513 Mbits (receiveing rate)
strange packet without syc header 1478   x   x   x   x   x   5
recv data pkt: 1478

lost packets = 1, recvfrom err=0
2 000002 buf_seq#:      handle
3  87.4250 sec. Thu Jul 27 14:26:31 2000 [from SYNC | start receiving bst]
4  87.4250 sec. Thu Jul 27 14:26:31 2000 [from SYNC | end of receiving bst]
6 0.000000 sec. clock diff from recv rle to send ('-' is recv faster) [W32768]
1 594.400024 Mbits (receiveing rate)
strange packet without syc header 1478   x   x   x   x   x   x   6
recv data pkt: 1478
   7   8
lost packets = -1, recvfrom err=0
2 000002 buf_seq#:      handle
3  87.4258 sec. Thu Jul 27 14:26:31 2000 [from SYNC | start receiving bst]
4  87.4259 sec. Thu Jul 27 14:26:31 2000 [from SYNC | end of receiving bst]
6 0.000000 sec. clock diff from recv rle to send ('-' is recv faster) [W32768]
1 593.333374 Mbits (receiveing rate)
strange packet without syc header 1478   x   x   x   x   x   x   x   x   x   9
recv data pkt: 1478
   x   x   x   x   x  15
   x   x   x   x   x  21
lost packets = -1, recvfrom err=0
2 000002 buf_seq#:      handle
3  87.4267 sec. Thu Jul 27 14:26:31 2000 [from SYNC | start receiving bst]
4  87.4268 sec. Thu Jul 27 14:26:31 2000 [from SYNC | end of receiving bst]
6 0.000000 sec. clock diff from recv rle to send ('-' is recv faster) [W32768]
1 293.157043 Mbits (receiveing rate)
   x   x   x   x   x   x   x   x   x   x   x   x   x   x   x   x
strange packet without syc header 1478   x   x   x   x   x   x   x   x   x   x   x   x  28
recv data pkt: 1478
   x   x   x
   x   x   x  35   x   x   x   x   x   x   x  43
lost packets = -1, recvfrom err=0
2 000002 buf_seq#:      handle
3  87.4278 sec. Thu Jul 27 14:26:31 2000 [from SYNC | start receiving bst]
4  87.4279 sec. Thu Jul 27 14:26:31 2000 [from SYNC | end of receiving bst]
6 0.000000 sec. clock diff from recv rle to send ('-' is recv faster) [W32768]
1 316.714294 Mbits (receiveing rate)
   x   x   x   x   x   x   x   x   x   x   x   x   x   x   x   x
   x   x   x   x   x   x   x   x   x   x   x   x   x   x   x   x
   x   x   x   x   x   x   x   x   x   x   x   x   x   x   x   x
strange packet without syc header 1478   x   x   x  51
recv data pkt: 1478