Date: Wed, 16 Feb 2005 18:12:39 -0800 From: Julian Elischer <julian@elischer.org> To: net@freebsd.org Subject: odd tcp trace. Message-ID: <4213FD97.7000708@elischer.org>
next in thread | raw e-mail | index | archive | help
This is a conversation between 2 FreeBSD 4.8 machines. Does anyone else worry about what is going on here regarding packets sent and the received window? only odd setting here is that the slowstart flightsize was set to 30 (it was the only machine using this high latency link) (400mSec rtt but lots of bandwidth) 19:53:49.694030 machineA.49177 > machineB.2293: . 28713:30161(1448) ack 1 win 32942 19:53:49.694039 machineA.49177 > machineB.2293: . 30161:31609(1448) ack 1 win 32942 19:53:49.694050 machineA.49177 > machineB.2293: . 31609:33057(1448) ack 1 win 32942 19:53:50.069090 machineB.2293 > machineA.49177: . ack 2897 win 32580 19:53:50.069111 machineA.49177 > machineB.2293: . 33057:34505(1448) ack 1 win 32942 19:53:50.069120 machineA.49177 > machineB.2293: . 34505:35953(1448) ack 1 win 32942 19:53:50.069131 machineA.49177 > machineB.2293: . 35953:37401(1448) ack 1 win 32942 19:53:50.069140 machineA.49177 > machineB.2293: . 37401:38849(1448) ack 1 win 32942 19:53:50.069189 machineA.49177 > machineB.2293: . 38849:40297(1448) ack 1 win 32942 19:53:50.069199 machineA.49177 > machineB.2293: . 40297:41745(1448) ack 1 win 32942 19:53:50.069209 machineA.49177 > machineB.2293: . 41745:43193(1448) ack 1 win 32942 19:53:50.069218 machineA.49177 > machineB.2293: . 43193:44641(1448) ack 1 win 32942 19:53:50.069227 machineA.49177 > machineB.2293: . 44641:46089(1448) ack 1 win 32942 19:53:50.069236 machineA.49177 > machineB.2293: . 46089:47537(1448) ack 1 win 32942 19:53:50.069245 machineA.49177 > machineB.2293: . 47537:48985(1448) ack 1 win 32942 accrding to my calculations.. machine A should not fell it ok to send any packets beyond sequence # 2897 + 32580 yet it goes ahead and sends data up to 48985 which is WAY out of range..
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?4213FD97.7000708>