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Troubleshooting Network Interfaces
The interface on the port in which an SFP or SFP+ transceiver is installed in an SFP or SFP+ module is down
Problem
The QFX Series has an SFP or SFP+ module installed. The interface on the port in which an SFP or SFP+ transceiver is installed is down.
When you check the status with the CLI command show interfaces interface-name , the disabled port is not listed.
Cause
By default, the SFP or SFP+ module operates in the 10-Gigabit Ethernet mode and supports only SFP or SFP+ transceivers. The operating mode for the module is incorrectly set.
Solution
Only SFP or SFP+ transceivers can be installed in SFP or SFP+ modules. You must configure the operating mode of the SFP or SFP+ module to match the type of transceiver you want to use. For SFP+ transceivers, configure 10-Gigabit Ethernet operating mode.
