TOI Author :: Ferenc Janky

Configuring loopback is a vital tool in troubleshooting physical layer issues in computer networks. It enables the creation of a closed environment for self-verification and testing. It is essential for isolating problems related to cabling, hardware, and network interfaces. Loopback tests confirm the integrity of physical interconnections by sending traffic back to the source device. [This traffic can be injected, or a generated test pattern]. This can help to locate the source of issues in the physical layer.