Diagnose a Suspected Hardware Problem with a Fast Ethernet or Gigabit Ethernet Interface

Problem

When you suspect a hardware problem, take the following steps to help verify if there is a problem.

Solution

To diagnose a suspected hardware problem with the Ethernet interface, follow these steps:

• Create a Loopback
• Verify That the Fast Ethernet or Gigabit Ethernet Interface Is Up
• Configure a Static Address Resolution Protocol Table Entry
• Clear Fast Ethernet or Gigabit Ethernet Interface Statistics
• Ping the Fast Ethernet or Gigabit Ethernet Interface
• Check for Fast Ethernet or Gigabit Ethernet Interface Error Statistics