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Port Panel of QFX5100-48T and QFX5100-48TH Devices

The port panel of the QFX5100-48T and QFX5100-48TH devices supports 48 10GBASE-T ports and 6 quad small-form factor pluggable (QSFP+) ports. Forty-eight copper physical ports (0 through 47) are tri-speed and support up to 10-Gigabit Ethernet. These 10GbE/1GbE/100 Mbps ports can be configured as access ports. See Determining Interface Support for the QFX5100 Device.

The remaining six ports (48 through 53), support 40 GbE QSFP+ transceivers. Each QSFP+ socket can operate either as a single 40 Gbps port or as a set of 4 independent 10 Gbps ports using QSFP+ breakout cables. The 40 GbE ports can be configured as either access ports or as uplinks.

To connect a QFX5100-48T device as a member in a QFX Virtual Chassis, you need a pair of dedicated ports and cables that link each member in the Virtual Chassis into a ring topology. Each member in the ring has at least one direct Virtual Chassis port (VCP) connection to a upstream and downstream member. QFX5100-48T switches are recommended in the primary, backup, or line card role. When mixed with QFX3500 or QFX3600 devices, configure the QFX5100-48T device in the primary and backup roles. See Connecting QFX Series and EX Series Switches in a QFX Virtual Chassis for cabling diagrams.

To connect a QFX5100-48T device as a leaf device in a Virtual Chassis Fabric (VCF), you need a pair of dedicated ports and cables that link each spine device and leaf device in the VCF. All spine devices have at least one direct VCP connection to each leaf device in the VCF. See Connecting a QFX5100 Device in a Virtual Chassis Fabric for a cabling diagram.

The QFX5100-48T device operates as a standalone switch, a member of a QFX Virtual Chassis, a member of a QFX5110 Virtual Chassis, act as a leaf device in a Juniper Networks Virtual Chassis Fabric (VCF). QFX Virtual Chassis and QFX5100 Virtual Chassis both support up to 10 members. VCF supports 20 total devices, of which 4 QFX5100-24Q devices can be configured as spine devices.

Best Practice:

Use the QFX5100-24Q as a spine device and any QFX5100 device (except QFX5100-24Q-AA, QFX5100-48TH, or QFX510048SH) as leaf devices.

Figure 1 shows the port panel of a QFX5100-48T or QFX5100-48TH device.

Figure 1: QFX5100-48T or QFX5100-48TH Switch Port PanelQFX5100-48T or QFX5100-48TH Switch Port Panel
  1
Electrostatic Discharge (ESD) terminal
  3
40 GbE ports (6)
  2
10GBASE-T ports (48)
 

The QFX5100-48T and QFX5100-48TH device ports, (0 through 47) support RJ45 connectors. The 40 G uplink or data ports (48 through 53) support:

  • QSFP+ transceivers

  • QSFP+ to QSFP+ direct attach copper (DAC) cables

  • QSFP+ to SFP+ DAC breakout cables (DACBO)

  • QSFP+ to QSFP+ active optical cables (AOC)

  • QSFP+ to SFP+ AOC breakout cables (AOCBO)

To connect a QFX5100-48T switch as a Node device in a QFabric system, you need:

  • Four QSFP+ uplink ports on each QFX5100-48T Node device to connect to the data plane network through the QFX3008-I or QFX5100-24Q Interconnect devices.

  • The two remaining QSFP+ uplink ports on each QFX5100-48T Node device connect to the data plane network through the QFX3008-I or QFX5100-24Q Interconnect devices.

Access port pinouts for the QFX5100-48T switch are the same as the management port connector pinouts for the QFX Series. For more information, see RJ-45 Management Port Connector Pinout Information.