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    Connecting a QFX3008-I Interconnect Device to EX8208 Switches for the QFabric System Control Plane Network

    A QFX3000 QFabric system control plane and management network is formed by connecting the QFX Series devices in your network to two EX8208 switches. QFX3008-I Interconnect devices have four small form factor pluggable plus (SFP+) management ports on each Control Board. Use the SFP+ management ports to connect the QFX3008-I Interconnect devices to each EX8208 switch (see Figure 1.

    Figure 1: QFX3008-I Interconnect Device to EX8208 Switch Connections

    QFX3008-I Interconnect
Device to EX8208 Switch Connections

    Specific ports have been reserved on the EX8208 switch to connect to each of the QFabric system device types. Such design simplifies installation and facilitates timely deployment of a QFabric system. It also enables the use of a standard control plane network configuration (see Example: Configuring the QFX3000-G QFabric System Control Plane with EX8208 Switches).

    Before you begin to connect a QFX3008-I Interconnect device to the control plane network:

    To connect each QFX3008-I Interconnect device to the control plane network (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. Connect the Control Boards on the first Interconnect device to the EX8208 switches.

      Control Board

      Port 0

      Port 1

      Port 2

      Port 3

      CB 0

      Connect to port ge-0/0/38 on the first EX8208 switch.

      Connect to port ge-0/0/38 on the second EX8208 switch.

      Unused.

      Unused.

      CB 1

      Connect to port ge-0/0/39 on the first EX8208 switch.

      Connect to port ge-0/0/39 on the second EX8208 switch.

      Unused.

      Unused.

    2. Connect the Control Boards on the second Interconnect device to the EX8208 switches.

      Control Board

      Port 0

      Port 1

      Port 2

      Port 3

      CB 0

      Connect to port ge-1/0/38 on the first EX8208 switch.

      Connect to port ge-1/0/38 on the second EX8208 switch.

      Unused.

      Unused.

      CB 1

      Connect to port ge-1/0/39 on the first EX8208 switch.

      Connect to port ge-1/0/39 on the second EX8208 switch.

      Unused.

      Unused.

    3. (Optional) Connect the Control Boards on the third Interconnect device to the EX8208 switches.

      Control Board

      Port 0

      Port 1

      Port 2

      Port 3

      CB 0

      Connect to port ge-2/0/38 on the first EX8208 switch.

      Connect to port ge-2/0/38 on the second EX8208 switch.

      Unused.

      Unused.

      CB 1

      Connect to port ge-2/0/39 on the first EX8208 switch.

      Connect to port ge-2/0/39 on the second EX8208 switch.

      Unused.

      Unused.

    4. (Optional) Connect the Control Boards on the fourth Interconnect device to the EX8208 switches.

      Control Board

      Port 0

      Port 1

      Port 2

      Port 3

      CB 0

      Connect to port ge-3/0/38 on the first EX8208 switch.

      Connect to port ge-3/0/38 on the second EX8208 switch.

      Unused.

      Unused.

      CB 1

      Connect to port ge-3/0/39 on the first EX8208 switch.

      Connect to port ge-3/0/39 on the second EX8208 switch.

      Unused.

      Unused.

    Published: 2013-06-24