Execute the following command to view detailed interface and optical module status: show interface <interface-type> <interface-number>Execute the following command to view detailed interface and optical module status: show interface <interface-type> <interface-number>If an optical module on an interface is faulty, you can run the display commands to view information about the optical module. Identify a Huawei-Certified Optical Module Run the display transceiver [ interfaceinterface-typeinterface-number | slotslot-id ] [ verbose ] command to view information. This article provides instructions on how to view the Optical Module Status on your switch through the Command Line Interface (CLI). The Cisco Small Business Series Switches allow you to plug in a Small Form-factor Pluggable (SFP) transceiver in their optical modules to connect fiber optic cables. By checking module health, compatibility, and digital diagnostics, you can quickly confirm correct installation, detect optical problems, and maintain accurate hardware. This guide gives a practical, CLI-focused workflow for checking SFP health and diagnostics on Cisco switches, shows the exact commands you'll use, explains what the numbers mean, and compares OEM (Cisco) vs third-party modules so you can pick the right SFP module supplier for reliability and cost. SFP modules are commonly used in networking equipment, such as switches, routers, and network interface cards, to provide flexibility in connecting.
