How To Check Sfp Module Serial In Cisco Switch

SFP (Small Form-factor Pluggable) modules are hot-swappable transceiver modules used in networking switches to connect fiber or copper cables. As these modules are interchangeable, it is important to keep track of their serial numbers to ensure seamless network connectivity. In this article, we will discuss how to check the SFP module serial in Cisco Switch.

Step 1- Check the Interface

Before checking the SFP module serial number, it is essential to check whether the SFP module is recognized in the switch interface and identified as “up” and “working”. Log in to your Cisco switch and run the “show interfaces status” command to check the status of your ports.

Step 2- Check the SFP Type

Once you have established that your SFP module is recognized, the next step is to check the SFP module type. This is important, as different SFP types have different identification procedure. Within the switch console or SSH session, run the “show interfaces transceiver” command. The output of this command will provide you information about the SFP type.

Step 3- Use “show inventory” command

Once you have identified the SFP module type, you can use the “show inventory” command to view the SFP module serial number. This command will provide you with a detailed inventory of all the hardware installed in your switch. To view a specific SFP module, you may need to provide the slot number and the port number where SFP module is installed. For example, if the SFP module is installed on slot 1 and port 1, the command will be “show inventory raw | include Slot 1/1\".

Step 4- Use “show idprom interface” command

Some SFP modules do not support the “show inventory” command or may not display the serial number in the output. In such cases, you can use the “show idprom interface” command to check the SFP module serial number. To use this command, specify the interface name followed by the “idprom” keyword. For example, if the SFP module is installed on GigabitEthernet Interface 1/0/1, the command will be “show idprom interface GigabitEthernet1/0/1.”

Conclusion

Checking the SFP module serial number is an important aspect of network management. With the above-mentioned commands, you can easily check the SFP module serial in Cisco Switch. Keeping track of SFP module serial numbers is crucial to ensure efficient network connectivity and quick troubleshooting in case of any issues.

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