A network technician investigates an issue where a newly installed link between two switches is not coming up. After verifying that both switches are powered on and the ports are enabled, the technician suspects a transceiver mismatch. Each switch supports multi-mode fiber connections. Which of the following could be the reason the link is not working?
One switch uses a 1000Base-LX transceiver and the other uses a 1000Base-SX transceiver
One of the switches is using a slightly higher firmware version
Mismatched transceivers, such as using a 1000Base-SX multi-mode transceiver on one end and a 1000Base-LX single-mode transceiver on the other, will cause the connection to fail. This is primarily because they operate at different light wavelengths (850nm for SX and 1310nm for LX). Each type of transceiver is designed to work with specific fiber types and wavelengths, and they are not directly interchangeable.
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What are 1000Base-LX and 1000Base-SX transceivers?
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