How can I tell if my network interfaces have a physical (layer 1) connection?

Solution Verified - Updated -

Issue

  • When setting up or configuring a network interface on a Red Hat Enterprise Linux system, you would like to ensure that a layer 1 connection is being made between the network interface and the switchport/destination from the other side.

Environment

  • Red Hat Enterprise Linux 4
  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 6

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