Greetings,

I recently installed CentOS 5 on Dell PE 1750 server. I have noticed that the speed and duplex settings are 100 Half Duplex. I tried to change the duplex settings to full, but no success. I got the error message "Cannot get current device settings: Operation not supported". Does anyone else experience this issue?. Below is the error message and some more details about my box. Any help will be highly appreciated.

[root@xentwo ~]# ethtool -s eth0 speed 100 duplex full autoneg on Cannot get current device settings: Operation not supported not setting speed not setting duplex not setting autoneg

[root@xentwo ~]# ethtool -s eth0 speed 100 duplex full autoneg off Cannot get current device settings: Operation not supported not setting speed not setting duplex not setting autoneg

[root@xentwo ~]# mii-tool eth0 SIOCGMIIPHY on 'eth0' failed: Operation not supported

[root@xentwo ~]# cat /etc/issue CentOS release 5.5 (Final) Kernel \r on an \m

[root@xentwo ~]# uname -a Linux xentwo 2.6.18-194.32.1.el5xen #1 SMP Wed Jan 5 19:32:33 EST 2011 i686 i686 i386 GNU/Linux

[root@xentwo ~]# dmesg | grep eth0 eth0: Tigon3 [partno(BCM95704A6) rev 2002 PHY(5704)] (PCIX:133MHz:64-bit) 10/100/1000Base-T Ethernet 00:11:43:59:7c:ed eth0: RXcsums[1] LinkChgREG[0] MIirq[0] ASF[0] WireSpeed[1] TSOcap[1] eth0: dma_rwctrl[769f4000] dma_mask[64-bit] ADDRCONF(NETDEV_UP): eth0: link is not ready tg3: eth0: Link is up at 100 Mbps, half duplex. tg3: eth0: Flow control is off for TX and off for RX. ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready eth0: no IPv6 routers present ADDRCONF(NETDEV_UP): peth0: link is not ready tg3: peth0: Link is up at 100 Mbps, half duplex. tg3: peth0: Flow control is off for TX and off for RX. ADDRCONF(NETDEV_CHANGE): peth0: link becomes ready device peth0 entered promiscuous mode xenbr0: port 2(peth0) entering forwarding state eth0: no IPv6 routers present

[root@xentwo ~]# dmidecode | grep -i ether Type: Ethernet Description: Broadcom Gigabit Ethernet 1 Type: Ethernet Description: Broadcom Gigabit Ethernet 2

[root@xentwo ~]# ifconfig eth0 Link encap:Ethernet HWaddr 00:11:43:59:7C:ED inet addr:192.168.30.124 Bcast:192.168.30.255 Mask:255.255.255.0 inet6 addr: fe80::211:43ff:fe59:7ced/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:136658 errors:0 dropped:0 overruns:0 frame:0 TX packets:512 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:43152822 (41.1 MiB) TX bytes:75457 (73.6 KiB)

lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:1522 errors:0 dropped:0 overruns:0 frame:0 TX packets:1522 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:4285636 (4.0 MiB) TX bytes:4285636 (4.0 MiB)

peth0 Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link UP BROADCAST RUNNING NOARP MTU:1500 Metric:1 RX packets:137243 errors:0 dropped:0 overruns:0 frame:0 TX packets:511 errors:0 dropped:0 overruns:0 carrier:0 collisions:3 txqueuelen:1000 RX bytes:43740268 (41.7 MiB) TX bytes:76133 (74.3 KiB) Interrupt:18 Memory:fcf30000-fcf40000

vif0.0 Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link UP BROADCAST RUNNING NOARP MTU:1500 Metric:1 RX packets:514 errors:0 dropped:0 overruns:0 frame:0 TX packets:136671 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:75781 (74.0 KiB) TX bytes:43153860 (41.1 MiB)

virbr0 Link encap:Ethernet HWaddr 00:00:00:00:00:00 inet addr:192.168.122.1 Bcast:192.168.122.255 Mask:255.255.255.0 inet6 addr: fe80::200:ff:fe00:0/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:36 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:0 (0.0 b) TX bytes:7967 (7.7 KiB)

xenbr0 Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF UP BROADCAST RUNNING NOARP MTU:1500 Metric:1 RX packets:135062 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:40981075 (39.0 MiB) TX bytes:0 (0.0 b)

Regards, Sikkandar