Date: Fri, 14 Nov 1997 22:08:57 -0500 (GMT) From: Kapil Chowksey <kchowksey@hss.hns.com> To: questions@freebsd.org Subject: NE2100 ethernet card (lnc1) giving poor performance Message-ID: <199711150308.WAA00706@tarang.hss.hns.com>
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Hullo All, A NE2100 ethernet card--lnc1 device (on an HP Vectra Pentium class CPU running FreeBSD 2.2.5-RELEASE) is giving very poor performance (about 4 Kbps ftp transfers). This is happening only in post-install operation -- single user as well as multi-user mode. During installation (which was done in ftp mode using an ftp server on local ethernet), the performance was normal (about 400 Kbps ftp transfers). A tcpdump shows that FTP transfers a chunk of data, waits for *two seconds*, then transfers a chunk ... and so on. 16:36:48.167449 elbereth.40051 > kchowksey.ftp-data: . ack 12960 win 17280 <nop ,nop,timestamp 9423 22459,nop,nop,[|tcp]> (DF) [tos 0x8] 16:36:48.167599 elbereth.40051 > kchowksey.ftp-data: . ack 12960 win 17280 <nop ,nop,timestamp 9423 22459,nop,nop,eol,[|tcp]> (DF) [tos 0x8] 16:36:49.641186 kchowksey.ftp-data > elbereth.40051: . 12960:14400(1440) ack 1 win 17280 <nop,nop,timestamp 22461 9423,nop,nop,[|tcp]> (DF) [tos 0x8] 16:36:49.644203 elbereth.40051 > kchowksey.ftp-data: . ack 17280 win 12960 <nop ,nop,timestamp 9426 22461,nop,nop,eol,[|tcp]> (DF) [tos 0x8] 16:36:49.644353 elbereth.40051 > kchowksey.ftp-data: . ack 17280 win 17280 <nop ,nop,timestamp 9426 22461,nop,nop,[|tcp]> (DF) [tos 0x8] Does any one know what could be happening here ? -- Kapil Chowksey kchowksey@hss.hns.com
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