Two variants of the QFX5120 switches are available— 32-port and 48-port switches, with AC and DC
power supplies and with different airflow directions. The QFX5120-48Y switch offers two models featuring
AC power supplies with front-to-back or back-to-front airflow, and two models featuring DC power supplies
with front-to-back or back-to-front airflow. The QFX5120-32C switch offers two models featuring AC
power supplies with front-to-back or back-to-front airflow.
NOTE: The QFX5120-32C switch currently supports only AC power supply.
Benefits of the QFX5120 Switch
EVPN-VXLAN campus architecture—The QFX5120 switch extends EVPN-VXLAN beyond the data center,
thus providing customers the building blocks for an enterprise-wide fabric. The EVPN-VXLAN protocol is
suitable for campus architectures because it provides Layer 3 transport with Layer 2 capabilities that allow
enterprises to evolve, while also taking into consideration legacy applications. QFX5120 also offers core
aggregation capabilities aimed at enterprises with campus networks that want a compact and highly scalable
solution.
Industry-leading 25-Gbps and 100-Gbps wire speeds: The QFX5120 Switch offers industry-leading high
density 25-Gbps and 100-Gbps wire speeds that support 48 ports at 100-Gbps or 48 ports at 25-Gbps,
and 8 100-Gbps uplink ports.
Common data center protocols: The QFX5120 also uses data center network protocols. The network
protocols used in the QFX5120 are the Ethernet VPN (EVPN) and the Virtual Extensible LAN (VXLAN).
Engineers typically use it with the Border Gateway Protocol and the VXLAN encapsulation protocol which
creates an overlay network on an existing Layer 3 infrastructure. As a result, the same engineering team
can manage the data center and the campus.
QFX5120 Hardware
The QFX5120 delivers low-latency, native 25-GbE, rich Layer 2 and Layer 3 features, VXLAN overlay
support, and 100GbE uplinks, making it the ideal switch for access and top-of-rack deployments.
Two variants of QFX5120 switches are available, QFX5120-32C and QFX5120-48Y.
Figure 1 on page 22 shows the front view of the QFX5120-32C switch.
Figure 1: QFX5120-32C - Front View
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