Interconnecting Two Virtual Chassis for Copper-Based QFX3000-G QFabric System Control Plane Redundancy

 

A QFX3000-G QFabric system control plane and management network is formed by connecting the QFX Series devices in your network to two Virtual Chassis. If you are creating a copper-based control plane network, you use four EX4200-48T or four EX4300-48P Ethernet switches in each Virtual Chassis. For redundancy and communication, you must connect the two Virtual Chassis using the 10-Gigabit Ethernet uplink module ports configured as a link aggregation group (LAG) (see Figure 1).

Figure 1: QFX3000-G QFabric System Copper-Based Control Plane—Inter-Virtual Chassis LAG Connections
QFX3000-G QFabric
System Copper-Based Control Plane—Inter-Virtual Chassis LAG
Connections

Before you begin to interconnect two Virtual Chassis for QFX3000-G QFabric system control plane redundancy:

To interconnect two Virtual Chassis for QFabric system control plane redundancy (see Figure 1 and Table 1):

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. If the fiber-optic cable connector is covered by a rubber safety cap, remove the cap. Save the cap.
  2. Remove the rubber safety cap from the SFP+ optical transceiver in port 0 on member 0 of the first Virtual Chassis. Save the cap.
  3. Insert the cable connector into the optical transceiver (see Figure 2).
    Figure 2: Connecting a Fiber-Optic Cable to an Optical Transceiver Installed in an EX Series Switch
    Connecting a Fiber-Optic Cable to an Optical Transceiver Installed
in an EX Series Switch
  4. If the connector at the other end of the fiber-optic cable is covered by a rubber safety cap, remove the cap. Save the cap.
  5. Remove the rubber safety cap from the SFP+ optical transceiver in port 0 on member 0 of the second Virtual Chassis. Save the cap.
  6. Insert the cable connector into the optical transceiver.
  7. Repeat Step 1 through Step 6 for each uplink module port, following the port assignments in Table 1.
  8. Secure the cables so that they are not supporting their own weight. Place excess cable out of the way in a neatly coiled loop. Placing fasteners on a loop helps cables maintain their shape.Caution

    Do not bend fiber-optic cables beyond their minimum bend radius. An arc smaller than a few inches in diameter can damage the cables and cause problems that are difficult to diagnose.

    Do not let fiber-optic cables hang free from the connector. Do not allow fastened loops of cables to dangle, which stresses the cables at the fastening point.