Management Board for a QFX3500 Device

The management board for a QFX3500 device (see Figure 1) is a field-replaceable unit (FRU) that you install on the front panel.

Caution: You must power off the QFX3500 device before replacing the management board.

Figure 1 shows the management board.

Figure 1: Management Board for a QFX3500 Device

The management board contains the following components on the faceplate:

• LCD panel—The LCD panel displays the device hostname and the number of active alarms.

  Tip: Alternatively, you can use the show chassis lcd CLI command to view what is currently displayed on the LCD panel.

• Chassis status LEDs
• USB port
• Console (CON) port (RJ-45)
• Management (C0 and C1) ports

There are two types of management boards:

• RJ-45 management board—Provides two 1000BASE-T RJ-45 management ports.
  • If you are using the QFX3500 device as a Node device in a QFabric system, see Cable Specifications for Control Plane Connections for the QFX Series for information about the required cables.
  • If you are using the QFX3500 device as a standalone switch, see Cable Specifications for Console and Management Connections for the QFX Series for information about the required cables.
• SFP management board—Provides two 1-Gbps small form-factor pluggable (SFP) management ports.
  • If you are using the QFX3500 device as a Node device in a QFabric system, see Interface Specifications for Control Plane Connections for the QFabric System for information about the supported transceivers and required cables.
  • If you are using the QFX3500 device as a standalone switch, see Interface Specifications for SFP Transceivers for QFX3500 Device Management Ports for information about the supported transceivers and required cables.

In addition to the fan trays, two fan modules on the management board provide airflow to cool the chassis. The management board provides FRU-side-to-port-side or port-side-to-FRU-side airflow depending on the device model you purchase. Table 1 lists the different management boards and their direction of airflow. The management boards are designed so that they can only be inserted into the QFX3500 model that supports the same airflow type.

Note: The front panel of the device where the power supplies, fan trays, and management boards are located is the FRU side of the device.