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    Interconnecting Two EX8208 Switches for QFabric System Control Plane Redundancy

    A QFX3000 QFabric switch control plane and management network is formed by connecting the QFX series devices in your network to two EX8208 switches. For redundancy and communication, you must interconnect the two EX8208 switches (see Figure 1).

    Figure 1: EX8208 Switch Interconnection

    EX8208 Switch
Interconnection

    Before you begin to interconnect two EX8208 switches for QFabric switch control plane redundancy:

    To interconnect two EX8208 switches for QFabric system control plane redundancy (see Figure 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 optical transceiver on the first EX8208 switch. 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 optical transceiver on the second EX8208 switch. Save the cap.
    6. Insert the cable connector into the optical transceiver.
    7. Repeat Step 1 through Step 6 , 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.

    Published: 2013-06-24