How to find the ID of the optical transceiver switch

You can find the ID of an optical transceiver (SFP) on a switch using CLI commands like show inventory or show interface transceiver detail to display Product ID, Serial Number, and other module details.

Using Cisco Switches

1. Log in to the switch via SSH or console.
2. Check installed transceivers:
   • Run show inventory to list all installed hardware, including SFPs, showing Product ID (PID), Version ID (VID), and Serial Number (SN) .
3. View detailed transceiver information:
   • Use show interface transceiver detail or show interfaces transceiver detail to see temperature, voltage, transmit/receive power, vendor, and part number .
4. Quick interface status:
   • show interfaces status displays the port status, speed, duplex, and media type (SFP model) quickly .
5. EEPROM/vendor info:
   • Some platforms support show idprom interface or show idprom transceiver extended to read EEPROM data including vendor, part number, and serial number .
6. Check logs for recognition issues:
   • show logging can reveal if a transceiver is unsupported or not recognized .

Using Huawei Switches

1. Display transceiver information:
   • Run display transceiver [interface interface-type interface-number | slot slot-id] to view basic and detailed optical module info .
2. Diagnostic information:
   • Use display transceiver diagnosis interface to see digital diagnostic monitoring (DDM) metrics such as temperature, voltage, and optical power .
3. Verify module certification:
   • Huawei recommends using certified modules to ensure compatibility and reliability; non-certified modules may not provide full information .

Key Notes

• PID/VID/SN are the primary identifiers for optical transceivers.
• DDM metrics (temperature, voltage, Tx/Rx power) help assess module health.
• Always verify that the transceiver is recognized and operational using show interfaces and show inventory.
• For troubleshooting, check error counters and logs to detect physical or compatibility issues . By following these commands, you can accurately identify the optical transceiver installed in your switch, monitor its health, and maintain proper inventory records.