[CentOS] Slow network

[Juergen Gotteswinter]

lspci -v output whould be helpful

centos at 911networks.com wrote:
> Hi,
> 
> I have problem with a Centos 5.3 computer. The networking is very
> slow. The networking card is a RealTek 1GigE. 
> 
> I plugged an Ubuntu laptop on the same cable and port with an Intel
> GigE, and it's about 8 to 10 times faster. So the problem is likely to
> be with the CentOS config.
> 
> Any suggestion on how to track down the problem with speed.
> 
> I have checked the packets with wireshark, no problem.
> 
> Here's my ethtool eth0 output:
> 
>         Advertised auto-negotiation: Yes
>         Speed: 1000Mb/s
>         Duplex: Full
> 
> Here's ifconfig eth0
> 
> eth0      Link encap:Ethernet  HWaddr 00:06:7B:00:14:16  
>           inet addr:192.168.2.103  Bcast:192.168.2.255  Mask:255.255.255.0
>           inet6 addr: fe80::206:7bff:fe00:1416/64 Scope:Link
>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>           RX packets:3139398 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:2890605 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:1000 
>           RX bytes:4048643591 (3.7 GiB)  TX bytes:257250846 (245.3 MiB)
> 
> Any suggestion?
> 
>