The Article provides details on steps to check if there are no optics detected on device
The device will not show any optics under "show chassis hardware" command output
labroot@jtac-QFX5100-24Q-2P-r030> show chassis hardware detail
Hardware inventory:
Item Version Part number Serial number Description
Chassis TB3714120390 QFX5100-24Q-2P
Pseudo CB 0
Routing Engine 0 BUILTIN BUILTIN RE-QFX5100-24Q-2P
ada0 9316 MB QEMU QM00001 Virtio Block Disk
ada1 4096 MB QEMU QM00002 Virtio Block Disk
ada2 512 MB QEMU QM00003 Virtio Block Disk
ada3 1024 MB QEMU QM00004 Virtio Block Disk
usb0 (addr 0.1) UHCI root HUB 0 Intel uhub0
usb1 (addr 1.1) EHCI root HUB 0 Intel uhub1
usb2 (addr 1.2) product 0x0020 32 vendor 0x8087 uhub2
FPC 0 REV 13 650-049942 TB3714120390 QFX5100-24Q-2P
CPU BUILTIN BUILTIN FPC CPU
PIC 0 BUILTIN BUILTIN 24x 40G-QSFP
PIC 1 REV 02 611-064335 RR3716090544 QFX-EM-4Q
PIC 2 REV 02 611-064335 RR3716090594 QFX-EM-4Q
Power Supply 0 REV 03 740-041741 1GA23522008 JPSU-650W-AC-AFO
Power Supply 1 REV 03 740-041741 1GA23522007 JPSU-650W-AC-AFO
Fan Tray 0 fan-ctrl-0 0, Front to Back Airflow - AFO
Fan Tray 1 fan-ctrl-0 1, Front to Back Airflow - AFO
Fan Tray 2 fan-ctrl-1 2, Front to Back Airflow - AFO
Fan Tray 3 fan-ctrl-1 3, Front to Back Airflow - AFO
Fan Tray 4 fan-ctrl-2 4, Front to Back Airflow - AFO
show chassis fpc pic-status
start shell
%show qsf list
%show sfp list
%vty fpc0
# show syslog messages
3. Try to plug out and plugin the SFP's
4.Try the same SFP in another device and see if it comes up
5.Power drain the device and check if SFP's are detected.
6.If all the above steps fail, create a case with JTAC .