Messages in this thread | | | Date | Sun, 24 May 1998 13:37:21 +0100 (GMT+0100) | From | Shaw Carruthers <> | Subject | Re: Poor TCP throughput in 2.1.103 |
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On Sun, 24 May 1998 ak@muc.de wrote:
> > Slow start should detect that. If it doesn't something is fishy in 2.1 > TCP. Do you have the same problem with 2.0 too? >
Yes I have the same problem with 2.0.33. The magic window size is 13140, up to this size I get no stalls.
Here is what happens in 2.1.103 with the default window:- stalls of about 20 secs.
14:13:17.829699 158.152.146.90.1046 > 194.159.255.135.20: . ack 60833 win 16060 (DF) [tos 0x8] 14:13:17.839699 194.159.255.135.20 > 158.152.146.90.1046: . 60833:62293(1460) ack 1 win 8760 (DF) [tos 0x8] 14:13:18.339699 158.152.146.90.1046 > 194.159.255.135.20: . ack 62293 win 16060 (DF) [tos 0x8] 14:13:18.359699 194.159.255.135.20 > 158.152.146.90.1046: . 62293:63753(1460) ack 1 win 8760 (DF) [tos 0x8] 14:13:18.469699 194.159.255.135.20 > 158.152.146.90.1046: P 63753:64077(324) ack 1 win 8760 (DF) [tos 0x8] 14:13:18.989699 194.159.255.135.20 > 158.152.146.90.1046: . 64077:65537(1460) ack 1 win 8760 (DF) [tos 0x8] 14:13:19.509699 194.159.255.135.20 > 158.152.146.90.1046: . 65537:66997(1460) ack 1 win 8760 (DF) [tos 0x8] 14:13:20.019699 194.159.255.135.20 > 158.152.146.90.1046: . 66997:68457(1460) ack 1 win 8760 (DF) [tos 0x8] 14:13:20.529699 194.159.255.135.20 > 158.152.146.90.1046: . 68457:69917(1460) ack 1 win 8760 (DF) [tos 0x8] 14:13:21.039699 194.159.255.135.20 > 158.152.146.90.1046: . 69917:71377(1460) ack 1 win 8760 (DF) [tos 0x8] 14:13:21.559699 194.159.255.135.20 > 158.152.146.90.1046: . 71377:72837(1460) ack 1 win 8760 (DF) [tos 0x8] 14:13:22.079699 194.159.255.135.20 > 158.152.146.90.1046: . 72837:74297(1460) ack 1 win 8760 (DF) [tos 0x8] 14:13:22.579699 194.159.255.135.20 > 158.152.146.90.1046: . 74297:75757(1460) ack 1 win 8760 (DF) [tos 0x8] 14:13:23.399699 194.159.255.135.20 > 158.152.146.90.1046: . 62293:63753(1460) ack 1 win 8760 (DF) [tos 0x8] 14:13:23.899699 158.152.146.90.1046 > 194.159.255.135.20: . ack 63753 win 16060 (DF) [tos 0x8] /* stalls here */ 14:13:42.289699 194.159.255.135.20 > 158.152.146.90.1046: . 63753:65213(1460) ack 1 win 8760 (DF) [tos 0x8] 14:13:42.799699 158.152.146.90.1046 > 194.159.255.135.20: . ack 65213 win 16060 (DF) [tos 0x8] 14:13:43.459699 194.159.255.135.20 > 158.152.146.90.1046: . 65213:66673(1460) ack 1 win 8760 (DF) [tos 0x8] 14:13:43.969699 158.152.146.90.1046 > 194.159.255.135.20: . ack 66673 win 16060 (DF) [tos 0x8]
-- Shaw Carruthers - shaw@shawc.demon.co.uk London SW14 7JW UK This is not a sig( with homage to Magritte).
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