Connect your computer to the switch using an Ethernet cable and ensure your computer's IP address is in the same subnet as the switch. Use a terminal client like PuTTY to log in to the switch using its IP address .
Verify that the switch supports the SFP or SFP+ module you plan to use. Check the module speed, fiber type (single-mode or multi-mode), and ESD protection. Insert the SFP module carefully into the fiber port, ensuring proper alignment and avoiding static discharge. Most SFP modules are hot-swappable, but follow the manufacturer's instructions for safe insertion .
Once the SFP module is installed, configure the fiber port on the switch:
Check the operational status of the port to ensure the link is active. Use commands like show interface status or show port to confirm the port is up and running at the expected speed and mode .
After configuring the port, save the switch configuration to ensure changes persist after a reboot. On Cisco switches, use the command copy running-config startup-config .
If the fiber link does not come up, verify:
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