show interfaces diagnostics optics

Optical and SFP info for all interfaces

show interfaces diagnostics optics <interface>

Info for a specific interface

show chassis pic fpc-slot <n> pic-slot <n> xcvr

Transceiver info by slot

`show interfaces diagnostics optics <int>

match “Vendor”`

To log into the other/backup routing engine:

                                                request routing-engine login other-routing-engine

                                To log into the other routing engine on a Juniper EX/QFX Virtual Chassis:
                                                request virtual-chassis routing-engine login member <member-id>
                                To reboot a member in a Juniper EX/QFX Virtual Chassis: 
                                                request system reboot member <master-member-id>
                                Switch current master on a Juniper EX/QFX Virtual Chassis:
                                                request virtual-chassis routing-engine master switch

                               Alternative command (on some platforms):

                                                request routing-engine login backup

To check which routing engine you’re currently on:

                                                show chassis routing-engine

To see the status of both routing engines:

                                                show chassis hardware