On 02/13/18 04:21, Terry Barnaby wrote:
I have just noticed that most of my systems now have their Ethernet interfaces running at 100 MBits/s half duplex rather than the expected 1GBits/s.
I think some update has caused this to happen, probably about 5 days ago (noticed something was slow). These are KDE/Plasma GUI systems but I'm not sure if this is due to a change in KDE/Plasma, NetworkManager or something else.
The KDE/Plasma NeworkManager settings GUI interface now has an "Allow auto-negotiation" checkbox which I don't think was there before and there is now the entry ETHTOOL_OPTS="autoneg on" in the /etc/sysconfig/network-scripts/ifcfg-* file if you set it. It appears that the default setting is 100MBits/s half duplex rather than auto negotiate...
All of my bare metal systems are KDE only. All of them are fully update. All of them are running at....
Speed: 1000Mb/s Duplex: Full
The "Allow auto-negotiation" box has been there for as long as I can recall. As a matter of fact, there was (maybe still is) a bug that prevents saving configuration changes if that box is not checked.
What are the systems connected to? You may want to reset it?