Juniper QFX3500, Hardware Documentation

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Installing and Removing QFX5100 Device Hardware Components | 429
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” on page 137 .
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” on page 319 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” on page 295 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 19 on page 40 shows the port panel of a QFX5100-48T or QFX5100-48TH device.
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