Path characteristics measured from SLAC to Stanford, 10/29/00 The measured and nominal capacities of the links in the path between Stanford and SLAC are (the 1st number under measured is for pchar using 93 packet sizes and 64 repeast per packet size, the 2nd number after the / is for 48 packet sizes and 128 repeats per packet size): Host Measured Nominal pharlap 23.7/24.97Mbps 100Mbps Fast Ethernet half duplex rtr-core1 1.32Gbps/796Mbps 4*1Gbps rtr-msfc -414/-409Mbps 1Gbps 192.68.191.83 52.5/50.7Mbps core4-gateway 36.3/37.6Mbps core6-gateway 42.9/44.7Mbps 171.64.1.230 44.6Mbps/44.7Mbps elaine 14cottrell@pharlap:~>pchar -R 128 elaine1.stanford.edu pchar to elaine1.stanford.edu (171.64.15.66) using UDP/IPv4 Packet size increments by 32 to 1500 46 test(s) per repetition 128 repetition(s) per hop 0: 134.79.x.y (PHARLAP.SLAC.Stanford.EDU) Partial loss: 0 / 5888 (0%) Partial char: rtt = 0.445336 ms, (b = 0.000334 ms/B), r2 = 0.997439 stddev rtt = 0.001917, stddev b = 0.000003 Partial queueing: avg = 0.000485 ms (1453 bytes) Hop char: rtt = 0.445336 ms, bw = 23969.096274 Kbps Hop queueing: avg = 0.000485 ms (1453 bytes) 1: 134.79.x.y (RTR-CORE1.SLAC.Stanford.EDU) Partial loss: 0 / 5888 (0%) Partial char: rtt = 0.589687 ms, (b = 0.000344 ms/B), r2 = 0.998049 stddev rtt = 0.001724, stddev b = 0.000002 Partial queueing: avg = 0.000263 ms (1453 bytes) Hop char: rtt = 0.144351 ms, bw = 795523.188961 Kbps Hop queueing: avg = -0.000222 ms (0 bytes) 2: 134.79.x.y (RTR-MSFC-DMZ.SLAC.Stanford.EDU) Partial loss: 0 / 5888 (0%) Partial char: rtt = 0.453528 ms, (b = 0.000324 ms/B), r2 = 0.998968 stddev rtt = 0.001181, stddev b = 0.000002 Partial queueing: avg = 0.000031 ms (1453 bytes) Hop char: rtt = -0.136159 ms, bw = -409574.740997 Kbps Hop queueing: avg = -0.000232 ms (0 bytes) 3: 192.68.191.83 (192.68.191.83) Partial loss: 0 / 5888 (0%) Partial char: rtt = 0.701817 ms, (b = 0.000482 ms/B), r2 = 0.997846 stddev rtt = 0.002539, stddev b = 0.000003 Partial queueing: avg = 0.000124 ms (2044 bytes) Hop char: rtt = 0.248290 ms, bw = 50724.506629 Kbps Hop queueing: avg = 0.000093 ms (591 bytes) 4: 171.64.1.226 (Core4-gateway.Stanford.EDU) Partial loss: 0 / 5888 (0%) Partial char: rtt = 0.852432 ms, (b = 0.000695 ms/B), r2 = 0.997583 stddev rtt = 0.003878, stddev b = 0.000005 Partial queueing: avg = 0.000202 ms (2412 bytes) Hop char: rtt = 0.150614 ms, bw = 37575.834382 Kbps Hop queueing: avg = 0.000078 ms (368 bytes) 5: 171.64.3.113 (Core6-gateway.Stanford.EDU) Partial loss: 3 / 5888 (0%) Partial char: rtt = 1.442707 ms, (b = 0.000878 ms/B), r2 = 0.987903 stddev rtt = 0.011016, stddev b = 0.000015 Partial queueing: avg = 0.000576 ms (4451 bytes) Hop char: rtt = 0.590275 ms, bw = 43660.688930 Kbps Hop queueing: avg = 0.000374 ms (2039 bytes) 6: 171.64.1.230 (leland-gateway.Stanford.EDU) Partial loss: 2974 / 5888 (50%) Partial char: rtt = 1.110348 ms, (b = 0.001057 ms/B), r2 = 0.997335 stddev rtt = 0.006194, stddev b = 0.000008 Partial queueing: avg = 0.000323 ms (4451 bytes) Hop char: rtt = -0.332359 ms, bw = 44710.317418 Kbps Hop queueing: avg = -0.000254 ms (0 bytes) 7: 171.64.15.66 (elaine1.Stanford.EDU) Path length: 7 hops Path char: rtt = 1.110348 ms, r2 = 0.997335 Path bottleneck: 23969.096274 Kbps Path pipe: 3326 bytes Path queueing: average = 0.000323 ms (4451 bytes) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Path characteristics measured from SLAC to Stanford, 10/30/00 20cottrell@pharlap:~>pchar -i 16 -R 64 elaine1.stanford.edu pchar to elaine1.stanford.edu (171.64.15.66) using UDP/IPv4 Packet size increments by 16 to 1500 93 test(s) per repetition 64 repetition(s) per hop 0: 134.79.16.102 (PHARLAP.SLAC.Stanford.EDU) Partial loss: 0 / 5888 (0%) Partial char: rtt = 0.450066 ms, (b = 0.000337 ms/B), r2 = 0.995493 stddev rtt = 0.001816, stddev b = 0.000002 Partial queueing: avg = 0.000479 ms (1421 bytes) Hop char: rtt = 0.450066 ms, bw = 23751.067794 Kbps Hop queueing: avg = 0.000479 ms (1421 bytes) 1: 134.79.19.2 (RTR-CORE1.SLAC.Stanford.EDU) Partial loss: 0 / 5888 (0%) Partial char: rtt = 0.600579 ms, (b = 0.000343 ms/B), r2 = 0.994909 stddev rtt = 0.001965, stddev b = 0.000003 Partial queueing: avg = 0.000300 ms (1421 bytes) Hop char: rtt = 0.150513 ms, bw = 1319829.002781 Kbps Hop queueing: avg = -0.000179 ms (0 bytes) 2: 134.79.135.21 (RTR-MSFC-DMZ.SLAC.Stanford.EDU) Partial loss: 0 / 5888 (0%) Partial char: rtt = 0.454942 ms, (b = 0.000324 ms/B), r2 = 0.998514 stddev rtt = 0.001000, stddev b = 0.000001 Partial queueing: avg = 0.000519 ms (1421 bytes) Hop char: rtt = -0.145637 ms, bw = -414205.331538 Kbps Hop queueing: avg = 0.000220 ms (0 bytes) 3: 192.68.191.83 (192.68.191.83) Partial loss: 10 / 5888 (0%) Partial char: rtt = 0.691285 ms, (b = 0.000476 ms/B), r2 = 0.998645 stddev rtt = 0.001405, stddev b = 0.000002 Partial queueing: avg = 0.000085 ms (1421 bytes) Hop char: rtt = 0.236343 ms, bw = 52465.651049 Kbps Hop queueing: avg = -0.000435 ms (0 bytes) 4: 171.64.1.226 (Core4-gateway.Stanford.EDU) Partial loss: 125 / 5888 (2%) Partial char: rtt = 0.850787 ms, (b = 0.000696 ms/B), r2 = 0.996740 stddev rtt = 0.003190, stddev b = 0.000004 Partial queueing: avg = 0.000192 ms (1910 bytes) Hop char: rtt = 0.159501 ms, bw = 36338.920162 Kbps Hop queueing: avg = 0.000108 ms (489 bytes) 5: 171.64.3.113 (Core6-gateway.Stanford.EDU) Partial loss: 13 / 5888 (0%) Partial char: rtt = 1.444567 ms, (b = 0.000883 ms/B), r2 = 0.984993 stddev rtt = 0.008728, stddev b = 0.000011 Partial queueing: avg = 0.000483 ms (3466 bytes) Hop char: rtt = 0.593780 ms, bw = 42898.183612 Kbps Hop queueing: avg = 0.000290 ms (1556 bytes) 6: 171.64.1.230 (171.64.1.230) Partial loss: 2993 / 5888 (50%) Partial char: rtt = 1.109142 ms, (b = 0.001062 ms/B), r2 = 0.995367 stddev rtt = 0.005804, stddev b = 0.000008 Partial queueing: avg = 0.000615 ms (4206 bytes) Hop char: rtt = -0.335425 ms, bw = 44623.556656 Kbps Hop queueing: avg = 0.000133 ms (740 bytes) 7: 171.64.15.66 (elaine1.Stanford.EDU) Path length: 7 hops Path char: rtt = 1.109142 ms, r2 = 0.995367 Path bottleneck: 23751.067794 Kbps Path pipe: 3292 bytes Path queueing: average = 0.000615 ms (4206 bytes)