--------------8D21B1FBB9BE2EB71A9ED609 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Heling Yi wrote: > Hi folks, > > I have a samsung SC1200-TX rev-1a(with genuine DEC Tulip 21140 on > board) ethernet card in a dual celeron computer. My net is 10BaseT. > The problem is that Samsung ethernet card transmits packets very > slowly, i.e. 90Kbyte-100Kbyte/sec under Linux(RH 5.2. I tried Kernel > 2.2.5, 2.2.3, 2.2.2, all have the same problem), but receiving packets > seems okay(between 700kbyte-1Mbyte/sec). I tried the lastest tulip > driver(0.91), it doesn't help either. However, the ethernet card works > flawlessly under windoze( both upload and download at > 800kbyte-1Mbyte/sec). > > diagnostics result is attached. > > Any idea? Thank in advance! > > Heling I suspect you are connected via a switch. Chack the half/full duplex status of the switch, Likely ACKs are getting lost and there are lots of timeouts and retransmits. ->>snip<-- -- Joe Ferguson, ApeX Systems Integration Corp. Voice: 919.468.8150 FAX: 919.468.5288 email: jferg@2boot.com --------------8D21B1FBB9BE2EB71A9ED609 Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: 7bit <!doctype html public "-//w3c//dtd html 4.0 transitional//en"> Heling Yi wrote:Hi folks,I have a samsung SC1200-TX rev-1a(with genuine DEC Tulip 21140 on
board) ethernet card in a dual celeron computer. My net is 10BaseT.
The problem is that Samsung ethernet card transmits packets very
slowly, i.e. 90Kbyte-100Kbyte/sec under Linux(RH 5.2. I tried Kernel
2.2.5, 2.2.3, 2.2.2, all have the same problem), but receiving packets
seems okay(between 700kbyte-1Mbyte/sec). I tried the lastest tulip
driver(0.91), it doesn't help either. However, the ethernet card works
flawlessly under windoze( both upload and download at
800kbyte-1Mbyte/sec).diagnostics result is attached.
Any idea? Thank in advance!
Heling
I suspect you are connected via a switch. Chack the half/full duplex status of the switch, Likely ACKs are getting lost and there are lots of timeouts and retransmits.->>snip<--
-- Joe Ferguson, ApeX Systems Integration Corp. Voice: 919.468.8150 FAX: 919.468.5288 email: jferg@2boot.com