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cannot set new settings : Success

Posted: 2020/04/14 07:06:58
by teku
Hello,

I have trouble with 10GbE connection.The link is unstable.

I am checking the status of the interface.
Ethtool returns the following status.

Supported ports: [ FIBRE ]
Supported link modes: 1000baseX/Full
10000baseSR/Full
Supported pause frame use: Symmetric
Supports auto-negotiation: Yes
Supported FEC modes: Not reported
Advertised link modes: 1000baseX/Full
10000baseSR/Full
Advertised pause frame use: No
Advertised auto-negotiation: Yes
Advertised FEC modes: Not reported
Speed: Unknown!
Duplex: Unknown! (255)
Port: FIBRE
PHYAD: 0
Transceiver: internal
Auto-negotiation: off
Supports Wake-on: g
Wake-on: g
Current message level: 0x00000007 (7)
drv probe link
Link detected: no


I tried to change Speed/Duplex/Auto-negotiation/Transceiver, but they didn't change.
When I use "ethtool -s [interface] speed|duplex ***", I get the following messages.

Cannot set new settings: Operation not supported
not setting speed

Cannot set new settings: Operation not supported
not setting duplex

When I use "ethtool -s [interface] autoneg on|off", I get no message. However the status doesn't change after I restart the interface.

When I use "ethtool -s [interface] xcvr internal|external", I get the following message.

Cannot set new settings: Success
not setting transceiver


I think Speed/Duplex aren't supported by the driver.
But I can't understand what "Success" means when changing the transceiver status.

Can someone help me to get this working?

Re: cannot set new settings : Success

Posted: 2020/04/14 17:20:12
by TrevorH
What sort of adapter? What sort of machine is it plugged into? Have you checked/changed the cables already?

lspci -nn | grep -i net