On 09/27/2011 05:15 AM, Muhammad Panji wrote:
Dear All, I have an onboard Realtek RTL8111/8168B NIC. from lspci -vv :
02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 02)
It is detected, but why the speed is always 100Mbps, already change cable but still no luck. I use ethtool and from the output it seems that system know that this NIC support gigabit speed :
Supported link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Full Supports auto-negotiation: Yes Advertised link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Fullhave change the driver r8169 with r8168 and follow the guide on CentOS wiki http://wiki.centos.org/AdditionalResources/HardwareList/RealTekRTL8111b but still it only get 100Mbps speed.
I user kernel 2.6.18-274.3.1.el5 and 2.6.18-274.3.1.el5-PAE. on another machine with the same specs I use kernel 2.6.18-238.9.1.el5 and the gigabit speed works.
Any idea why this happened and how to solve it? Thank you. Regards,
If your system is using the r8169 driver for this device then you'll probably need a different driver to get it working? I've got this in my Fedora 15 system and I needed to manually install the r8168 driver to make things work.
Check this out for the details: http://wiki.linuxmce.org/index.php/Realtek_8168
Regards, Dennis