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eth0 changes from 1000 to 100Mbit
absolut:
just realized that for some strange reason my ethernet NIC changes from 1Gbit to 100Mbit
anybody has an idea how to fix this behavior? i would like to have 1Gbit within my network, especially due to communication with NAS
--- Code: ---root@sidbox:[/home/absolut]# dmesg | grep eth
[ 0.939314] e1000e 0000:00:19.0 eth0: (PCI Express:2.5GT/s:Width x1) d0:50:99:73:d0:74
[ 0.939317] e1000e 0000:00:19.0 eth0: Intel(R) PRO/1000 Network Connection
[ 0.939349] e1000e 0000:00:19.0 eth0: MAC: 11, PHY: 12, PBA No: FFFFFF-0FF
[ 4.083717] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 4.300173] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 7.178634] e1000e: eth0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx
[ 7.178678] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[ 12.083049] e1000e: eth0 NIC Link is Up 100 Mbps Half Duplex, Flow Control: None
[ 12.083058] e1000e 0000:00:19.0 eth0: 10/100 speed: disabling TSO
root@sidbox:[/home/absolut]# ethtool eth0 | grep Speed
Speed: 100Mb/s
--- End code ---
absolut:
just kicked my NIC manually to 1000Mbit with this commend:
--- Code: ---ethtool -s eth0 speed 1000 duplex full
--- End code ---
originally, that was not required. i wonder why my machine would switch to 100Mbit half duplex at all... :/
anybody able to reproduce?
best
absolut
Geier0815:
Problem with your router or switch?
absolut:
hm, it does not look the router is at fault here... synology NAS reports 1000MBit/s, and the workstation runs also at 1000 (need to check after reboot). maybe the cable?
i'll be testing... for now consider the issue in "monitoring" state...
thanks
absolut
dibl:
Using e1000 here on a new installation of patience:
--- Code: ---root@dibl-patience:/# dmesg | grep enp0s31f6
[ 1.214053] e1000e 0000:00:1f.6 enp0s31f6: renamed from eth0
[ 4.101359] br0: port 1(enp0s31f6) entered blocking state
[ 4.101360] br0: port 1(enp0s31f6) entered disabled state
[ 4.101386] device enp0s31f6 entered promiscuous mode
[ 7.314333] e1000e: enp0s31f6 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx
[ 7.314382] br0: port 1(enp0s31f6) entered blocking state
[ 7.314382] br0: port 1(enp0s31f6) entered forwarding state
root@dibl-patience:/# ethtool enp0s31f6 | grep Speed
Speed: 1000Mb/s
root@dibl-patience:/#
--- End code ---
Seems stable.
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