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Connecting a QFX5100 Node Device to a QFX5100-24Q Interconnect Device

Before you begin to cable the QFX3000-M QFabric data plane:

To form the data plane in a QFX3000-M QFabric system using the QFX5100 line of switches, you connect the QSFP+ uplink ports on the QFX5100 Node device to the QSFP+ ports on the QFX5100-24Q Interconnect device. See Table 1 for the available ports for connecting to the QFX5100-24Q and Figure 1 for a diagram of the cabling. For a description of the port ranges and interface numbering for data plane and control plane, see Understanding Port Ranges and System Modes.

Table 1: Port Numbering for Data Plane Connections

QFX5100 Node Device Model

Port Numbers

QFX5100-24Q

0 through 23

QFX5100-48S

48 through 53

QFX5100-48T

48 through 53

Figure 1: QFX5100 Node Device Data Plane Connections to an QFX5100-24Q Interconnect Device for QFX3000-M QFabric SystemQFX5100 Node Device Data Plane Connections to an QFX5100-24Q Interconnect Device for QFX3000-M QFabric System
CAUTION:

For redundancy, each QFX5100 Node device must be connected to each QFX5100-24Q Interconnect device. For example, if you have two QFX5100-24Q Interconnect devices, then at least one uplink port on each QFX5100 Node device must be connected to each QFX5100-24Q Interconnect device. If you are connecting four uplink ports to two QFX5100-24Q Interconnect devices, we recommend connecting two uplink ports to each Interconnect device.

To connect a QFX5100 Node device to a QFX5100-24Q Interconnect device (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. 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 QSFP+ optical transceiver on the uplink port of the QFX5100 Node device. Save the cap.
  3. Insert the cable connector into the optical transceiver.
  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 QSFP+ optical transceiver on the QFX5100-24Q Interconnect device. Save the cap.
  6. Insert the cable connector into the optical transceiver.
  7. 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.