Dudes: I just installed RH 9.0 on a PC with an on-board SIS 900 Ethernet card that connects to a Linksys router with an auto 10/100 Mbps switch. The problem is that Ethernet card never only gives me 500kbps (or about 0.5 MBps) when I transfer file locally on LAN. I am very sure that card works perfectly on XP Pro. and offers me 5 MBps . I thought the card was not configured right but the command "mii-tool" show the following message "eth0: negotiated 100baseTx-FD, link ok", which tells the OS is using it as an100baseTx Full Duplex with auto switch. The output of ipconfig is as the follows: eth0 Link encap:Ethernet HWaddr 00:0D:87:61:70:27 inet addr:192.168.1.103 Bcast:192.168.1.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:607896 errors:0 dropped:0 overruns:0 frame:0 TX packets:485519 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:100 RX bytes:877768224 (837.1 Mb) TX bytes:39429949 (37.6 Mb) Interrupt:5 Base address:0xd400 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:477993 errors:0 dropped:0 overruns:0 frame:0 TX packets:477993 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:32640871 (31.1 Mb) TX bytes:32640871 (31.1 Mb) So, why didn't I get the LAN file transfer speed I am supposed to get? can anybody tell me what is wrong? Thanks a lot!

MBps= mega bits per second, not mega bytes. kbps= kilo bits per second, not kilo bytes. Do this, Transfer some data using your network adaptor in windows, and time how much data you recieved in disk space (mega byte). Then do the same with linux.

It took about 2 minutes to transfer a 700 Mega Bytes movie file between a WinXP host and a Win2k host. But it took about 20 minutes between a Win2k and a Linux host. In fact, the WinXP host and the Linux host are the exactly same machine with two different hard disks(one with WinXP on and the other with RH 9.0 on) So I am sure the Ethernet card is capable of 100mbps when it's used on WinXP. I just don't know why RH can make it work that way. Thanks a lot!