Why I cannot configure 100 Mb/s full-duplex link

Solution Verified - Updated -

Issue

  • Even if the ethtool command manages to set the link to 100M/full, the switch shows the link in half duplex.
  • Why the link run in half-duplex and ethtool shows the link 100M/full

Environment

  • RHEL 9
  • RHEL 8
  • RHEL 7
  • RHEL 6
  • ethtool

Subscriber exclusive content

A Red Hat subscription provides unlimited access to our knowledgebase, tools, and much more.

Current Customers and Partners

Log in for full access

Log In

New to Red Hat?

Learn more about Red Hat subscriptions

Using a Red Hat product through a public cloud?

How to access this content