Messages in this thread | | | Date | Sat, 27 Mar 1999 16:46:32 +0100 (CET) | From | Andrea Arcangeli <> | Subject | Re: Slow TCP connections between 2.2.3 and HP-UX B.10.20 A 9000/800 |
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On Thu, 25 Mar 1999 bwoodard@cisco.com wrote:
>08:24:50.317611 soot.cisco.com.2374 > neithan.ftp-data: . 4381:5841(1460) ack 1 win 57344 (DF) ^^^^ >08:24:50.319387 neithan.ftp-data > soot.cisco.com.2374: . ack 5841 win 32120 (DF) [tos 0x8] >08:24:50.319699 soot.cisco.com.2374 > neithan.ftp-data: . 7301:8761 (1460) ack 1 win 57344 (DF) ^^^^ tcpdump is been run in the receiver side (on neithan), right?
If there isn't a packet loss in the network it means that soot is forgotting to send packets. As far as I can tell linux is fine. But it could also be the lowlevel network on the linux side that doesn't get packets and so we couldn't see them in the tcp linux layer.
To know if it's the linux network card driver that it's loosing packets you can simply run tcpdump from a third machine (maybe an HP-UX machine) and see if such lost packets reaches the linux side or not.
>08:24:50.325762 soot.cisco.com.2374 > neithan.ftp-data: . 16061:17521(1460) ack 1 win 57344 (DF) ^^^^^ >08:24:50.328424 soot.cisco.com.2374 > neithan.ftp-data: . 20441:21901(1460) ack 1 win 57344 (DF) ^^^^^ ...
Andrea Arcangeli
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