Messages in this thread | | | Date | Sat, 10 Jul 1999 19:51:36 +0300 (EEST) | From | Petru Paler <> | Subject | [BUG] TCP connections between Linux and NT |
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[1.] One line summary of the problem:
TCP connections between Linux and NT slows down very much (on a local network)
[2.] Full description of the problem/report:
Any kind of TCP connections between a Linux (2.2.10) and a NT Server 4 (Service Pack 5) slow down to a crawl.
[3.] Keywords (i.e., modules, networking, kernel):
Networking.
[4.] Kernel version (from /proc/version):
Linux version 2.2.10 (root@hip) (gcc version 2.7.2.3) #4 Wed Jul 7 11:26:27 EEST 1999
[5.] Output of Oops.. message (if applicable) with symbolic information resolved (see Documentation/oops-tracing.txt)
N/A
[6.] A small shell script or example program which triggers the problem (if possible)
A classical FTP sessions suffices to trigger the problem.
[7.] Environment
The Linux server and the NT 4 (SP5) server are connected via a (moderately loaded) 10MBps (twisted pair, non-switching hub) network. I have attached the tcpdump of a FTP sessions from NT to Linux when the network was idle. The tcpdump command line was: tcpdump host hip and kobold and port ftp-data > kobold1
[7.1.] Software (add the output of the ver_linux script here)
-- Versions installed: (if some fields are empty or looks -- unusual then possibly you have very old versions) Linux hip 2.2.10 #4 Wed Jul 7 11:26:27 EEST 1999 i586 unknown Kernel modules 2.1.121 Gnu C egcs-2.91.66 Binutils 2.9.1.0.19 Linux C Library 5.4.46 Dynamic linker ldd: version 1.9.9 Linux C++ Library 2.9.0 Procps 2.0.2 Mount 2.7l Net-tools 1.52 Kbd 0.94 Sh-utils 1.16 Modules Loaded ppp_deflate ne2k-pci 8390 ppp slhc
[7.2.] Processor information (from /proc/cpuinfo):
processor : 0 vendor_id : AuthenticAMD cpu family : 5 model : 8 model name : AMD-K6(tm) 3D processor stepping : 0 cpu MHz : 332.704505 fdiv_bug : no hlt_bug : no sep_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 1 wp : yes flags : fpu vme de pse tsc msr mce cx8 sep mmx 3dnow bogomips : 663.55
[7.3.] Module information (from /proc/modules):
ppp_deflate 40612 1 (autoclean) ne2k-pci 3780 2 8390 6212 0 [ne2k-pci] ppp 19884 3 [ppp_deflate] slhc 4268 1 [ppp]
[7.4.] SCSI information (from /proc/scsi/scsi)
N/A
[7.5.] Other information that might be relevant to the problem (please look in /proc and include all information that you think to be relevant): [X.] Other notes, patches, fixes, workarounds:
No workarounds known. I can provide more details and/or make further tests if necessary.
-Petru [unhandled content-type:application/octet-stream] | |