If you are returning a switch or component to Juniper Networks for repair or replacement, you must locate
the serial number of the switch or component. You must provide the serial number to the Juniper Networks
Technical Assistance Center (JTAC) when you contact them to obtain a Return Materials Authorization
(RMA). See “Contacting Customer Support to Obtain a Return Materials Authorization for a QFX Series
Device or Component” on page 619.
If the switch is operational and you can access the command-line interface (CLI), you can list serial numbers
for the switch and for some components with a CLI command. If you do not have access to the CLI or if
the serial number for the component does not appear in the command output, you can locate the serial
number ID label on the device or component.
NOTE: If you want to find the serial number ID label on a component, you will need to remove
the component from the switch chassis, for which you must have the required parts and tools
available.
Listing the Chassis and Component Details Using the CLI
To list the QFX3600 or QFX3600-I device and components and their serial numbers, use the show chassis
hardware CLI operational mode command. For the QFX3600-I Interconnect device, or if you are using
the QFX3600 device as a Node device in a QFabric system, you must first log in to the device using the
request component login CLI operational mode command, or connect directly to the device through the
console CON port on the front panel.
user@device> show chassis hardware
Hardware inventory:
Item             Version  Part number  Serial number     Description
Chassis                                JN00000000        QFX3600
Routing Engine 0          BUILTIN      BUILTIN           QFX Routing Engine
FPC 0            REV 05   750-036931   EE0823            QFX 16x40G Switch
  CPU                     BUILTIN      BUILTIN           FPC CPU
  PIC 0                   BUILTIN      BUILTIN           16x 40G-QSFP+
Power Supply 0   Rev 04   740-032091   UI00690           QFX PS 650W AC
Power Supply 1   Rev 04   740-032091   UI00679           QFX PS 650W AC
Fan Tray 0                                               QFX Fan Tray
Fan Tray 1                                               QFX Fan Tray
Fan Tray 2                                               QFX Fan Tray
594