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Connecting QFX3100 Director Devices in a Director Group

Before you begin to connect QFX3100 Director devices in a Director group:

CAUTION:

The redundant patch cables interconnecting the Director devices are critical links required for the operation of the Director group. The two inter-Director device links must remain connected when the Director devices are online. Although a single inter-Director device can lose a link and regain its connection, the loss of both inter-Director device links causes one of the Director devices to become isolated from the Director group. In Figure 1 through Figure 3, these redundant patch cables are shown in red and connect port 3 to port 3.

A QFabric system requires two QFX3100 Director devices interconnected as a QFX3100 Director group (see Figure 1 through Figure 3).

Figure 1: QFX3100 Director Group Control Plane Connections for QFX3000-G QFabric System Using Copper-Based Control PlaneQFX3100 Director Group Control Plane Connections for QFX3000-G QFabric System Using Copper-Based Control Plane
Figure 2: QFX3100 Director Group Control Plane Connections for QFX3000-G QFabric System Using Fiber-Based Control PlaneQFX3100 Director Group Control Plane Connections for QFX3000-G QFabric System Using Fiber-Based Control Plane
Figure 3: QFX3100 Director Group Control Plane Connections for QFX3000-M QFabric SystemQFX3100 Director Group Control Plane Connections for QFX3000-M QFabric System

The second QFX3100 Director device provides redundancy for the control plane and management network.

To connect QFX3100 Director devices in a Director group (see Figure 1):

Laser Warning:

Do not look directly into a fiber-optic transceiver or into the ends of fiber-optic cables. Fiber-optic transceivers and fiber-optic cables connected to transceivers emit laser light that can damage your eyes.

  1. Connect the port labeled 3 on the first network module on one of the Director devices to the corresponding port (labeled 3) on the first network module on the second Director device.
  2. Connect the port labeled 3 on the second network module on one of the Director devices to the corresponding port (labeled 3) on the second network module on the second Director device.