Using the ethtool utility one cannot set autoneg off for ethernet cards

Solution Verified - Updated 2024-08-07T07:13:06+00:00 -

Issue

When trying to set auto-negotiation off on a gigabit ethernet card, the following error pops up, why ?
```
# ethtool -s eth1 autoneg off 
Cannot set new settings: Invalid argument 
not setting autoneg
```
We need to speed and duplex values and Link Speed for 10G NIC on RHEL. However the settings are not getting accepted.

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