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QFX5200 System Overview

QFX5200 Switch Description

The QFX5200 line offers line-rate, low-latency 10/25/40/50/100GbE switches for building large IP fabrics. QFX5200 Switches are an optimal choice for spine-and-leaf IP fabric deployments as well as metro use cases.

This topic covers:

QFX5200 Hardware

QFX5200 line of switches offer compact 1 U models that provide a line rate configuration packet performance, very low latency, and a rich set of Layer 3 features.

QFX5200-32C and QFX5200-32C-L Hardware

The QFX5200-32C and QFX5200-32C-L are compact 1 U standalone switches that provides a line rate configuration packet performance, very low latency, and a rich set of Layer 3 features. The routing engine and control plane are driven by the 1.8 Ghz quad-core Intel CPU with 16 GB of memory and two 32 GB solid-state drives (SSD) for storage. The QFX5200-32C models run standard Junos Operating System (OS); the QFX5200-32C-L models run Junos OS Evolved.

As shown in Figure 1, the QFX5200-32C and QFX5200-32C-L are 100 Gigabit Ethernet top-of-rack switches that support both quad small form-factor pluggable (QSFP+), 100-Gbps QSFP+ (QSFP28) transceivers, and break out cables in the 32 QSFP28 sockets. The ports 0 through 31 can be configured as either uplinks or as access ports. The QSFP28 ports are configured as 100-Gigabit Ethernet ports by default, but can also be configured to speeds of 50, 40, 25, or 10-Gigabit Ethernet.

The QFX5200-32C and QFX5200-32C-L comes standard with redundant fans and redundant power supplies. Switches can be ordered with either ports-to-FRUs or FRUs-to-ports airflow. The QFX5200-32C is available with AC or DC power supplies; the QFX5200-32C-L is available only with AC power supplies.

Figure 1: QFX5200-32C Port PanelQFX5200-32C Port Panel

The QFX5200-32C-L is supported as a standalone switch (Junos OS Evolved Release 18.3R1 and later).

The QFX5200-32C can be used as:

  • A standalone switch (Junos OS Release 15.1X53-D30 and later).

  • A member in an all QFX5200-32C Virtual Chassis (Junos OS Release 17.3R2 and later).

    You can create an all QFX5200-32C Virtual Chassis with up to three members. The QFX5200-32C is used in all three member roles: primary RE, backup RE, and line card.

  • A satellite device in a Junos Fusion Provider Edge system (Junos OS Release 18.1R2 and later). A switch in standalone mode must be converted to a satellite device.

QFX5200-48Y Hardware

The QFX5200-48Y is a flexible switch for environments with the need for native 25 Gbps port speeds. The 48 small form-factor pluggable 28 (SFP28) ports support 10 Gbps or native 25 Gbps speeds, and the 6 QSFP28 support either 40 Gbps or 100 Gbps speeds. The 48 SFP28 default to 10 Gigabit Ethernet and must be configured in groups of four ports to support 25 Gigabit Ethernet. You can alternate each group of four ports with either 10 Gbps or 25 Gbps across the 48 ports. For details on configuring the SFP28 ports, see QFX5200-48Y Port Panel.

The 6 QSFP28 ports auto-detect the optic speed of transceivers and set the port speed accordingly. The six QSFP28 ports can be channelized when configured to 40 Gigabit Ethernet to 4 independent 10 Gigabit Ethernet ports.

The routing engine and control plane of the switch are driven by the 2.20 Ghz quad-core Intel CPU with 16 GB of memory and a 32 GB solid-state drive (SSD) for storage. The QFX5200-48Y provides an aggregate throughput of 3.6 Tbps (full duplex).

As shown in Figure 2, the QFX5200-48Y has a 1 U form factor and comes standard with redundant fans and redundant power supplies. The switch can be ordered with either ports-to-FRUs or FRUs-to-ports airflow and with AC or DCpower supplies.

The QFX5200-48Y is supported on Junos OS Release 18.1R1 and later.

Figure 2: QFX5200-48Y Port PanelQFX5200-48Y Port Panel

Benefits of QFX5200 Switches

QFX5200 switches offer:

  • Future proof and investment protection

  • Open and standards based for multi-vendor networks

  • Support for Zero Touch Provisioning (ZTP) for simplified operation

QFX5200-32C Channelization

Starting in Junos OS Release 17.3R1, ports are channelized automatically by detecting the cable type. The mode and number of channels are set based on the channel link status:

  • When the port is configured for 40-Gigabit Ethernet and a 4x10G breakout cable is detected, the system converts the port into 4 independent 10-Gigabit Ethernet ports

  • When the port is configured for 100-Gigabit Ethernet and a 2x50G breakout cable is detected, the system converts the port into 2 independent 50-Gigabit Ethernet ports

  • When the port is configured for 100-Gigabit Ethernet and a 4x25G breakout cable is detected, the system converts the port into 4 independent 25-Gigabit Ethernet ports

QFX5200-32C-L Channelization

Starting in Junos OS Evolved Release 18.3R1, ports can be channelized by configuration.

  • When the port is configured for 40-Gigabit Ethernet and a 4x10G breakout cable is detected, the system converts the port into 4 independent 10-Gigabit Ethernet ports

  • When the port is configured for 100-Gigabit Ethernet and a 4x25G breakout cable is detected, the system converts the port into 4 independent 25-Gigabit Ethernet ports

QFX5200-48Y Channelization

When one of the 6 QSFP28 ports are configured for 40-Gigabit Ethernet and a 4x10G breakout cable is detected, the system converts the port into 4 independent 10-Gigabit Ethernet ports. Channelization is not supported on the 48 SFP28 ports.

System Software

Customers who purchase a QFX5200-32C or QFX5200-48Y may either enable the Junos OS by purchasing a Junos OS Base Services license. Customers purchasing a QFX5200-32C-L enable Junos OS Evolved by purchasing a Junos OS Evolved Base Services license.

QFX Series devices use the Junos OS, which provides Layer 2 and Layer 3 switching, routing, and security services. The Junos image is installed on one of the 32 GB solid state drives.The Junos OS Evolved software running on the QFX5200-32C-L does not support Layer 2 features.

For more information about which features are supported on QFX Series devices, see Feature Explorer.

You manage the switch using the Junos OS command-line interface (CLI), accessible through the console and out-of-band management ports on the device.

QFX5200 Hardware Component Overview

The QFX5200 supports the components in listed in alphabetic order.

Table 1: QFX5200 Hardware Components

Component

Chassis Model

Spare Juniper Model Number

CLI Output

Chassis

QFX5200-32C

QFX5200-32C-L

QFX5200-48Y

Not available

QFX5200-32C-CHAS

QFX5200-48Y-CHAS

QFX5200-32C-32Q

QFX5200-32C-L

QFX5200-48Y

Fan module

QFX5200-32C and QFX5200-32C-L

QFX5200-32C-FANAFI (FRUs to ports airflow)

QFX5200-32C-FANAFO (Ports to FRUs airflow)

Fan tray n fan-n Back to Front Airflow - AFI

Fan tray n fan-n Front to Back Airflow - AFO

QFX5200-48Y

QFX520048Y-FAN-AI (FRUs to ports airflow)

QFX520048Y-FAN-AO (Ports to FRUs airflow)

Fan tray n fan-n Back to Front Airflow - AFI

Fan tray n fan-n Front to Back Airflow - AFO

Power supplies

QFX5200-32C and QFX5200-32C-L

JPSU-850W-AC-AFI (FRUs to ports airflow)

JPSU-850W-AC-AFO (Ports to FRUs airflow)

AC AFI 850W PSU

AC AFO 850W PSU

QFX5200-32C

JPSU-850W-DC-AFI (FRUs to ports airflow)

JPSU-850W-DC-AFO (Ports to FRUs airflow)

DC AFI 850W PSU

DC AFO 850W PSU

QFX5200-48Y

QFX520048Y-APSU-AI (FRUs to ports airflow)

QFX520048Y-APSU-AO (Ports to FRUs airflow)

QFX520048Y-DPSU-AI (FRUs to ports airflow)

QFX520048Y-DPSU-AO (Ports to FRUs airflow)

AC AFI 650W PSU

AC AFO 650W PSU

DC AFI 650W PSU

DC AFO 650W PSU

QFX5200 Component Redundancy

The following hardware components provide redundancy on a QFX5200 switch:

  • Power supplies—The QFX5200 switches have one or two power supplies. Each power supply provides power to all components in the switch. If two power supplies are installed, the two power supplies provide full power redundancy to the device. If one power supply fails or is removed, the second power supply balances the electrical load without interruption.

    To provide power redundancy to the system both power supplies must be installed. Connect power source feed A to one power supply and power source feed B to the second power supply.

    CAUTION:

    Do not connect feed A and feed B to the same power supply input terminal.

  • Cooling system—The QFX5200-32C and QFX5200-32C-L switch models have five fan modules. The QFX5200-48Y switch models has six fan modules. If a fan module fails and is unable to keep the QFX5200 switch within the desired temperature thresholds, chassis alarms occur and the QFX5200 switch can shut down.

QFX5200 Field-Replaceable Units

Field-replaceable units (FRUs) are components that you can replace at your site. The QFX5200 device FRUs are hot-insertable and hot-removable: you can remove and replace one of them without powering off the switch or disrupting the switching function.

CAUTION:

Replace a failed power supply with a new power supply within one minute of removal to prevent chassis overheating. The switch continues to operate with only one power supply running. Replace a failed fan module with a new fan module within one minute of removal to prevent chassis overheating. Do not operate the switch with missing FRUs for longer than one minute.

Table 2 lists the FRUs for the QFX5200 device and actions to take before removing them.

Table 2: FRUs in a QFX5200 Switch

FRU

Required Action

Power supplies

None.

Fan modules

None.

Optical transceivers

None. We recommend that you disable the interface using the set interfaces interface-name disable command before you remove the transceiver. See Disconnect a Fiber-Optic Cable

Note:

If you have a Juniper Care service contract, register any addition, change, or upgrade of hardware components at https://www.juniper.net/customers/support/tools/updateinstallbase/ . Failure to do so can result in significant delays if you need replacement parts. This note does not apply if you replace existing components with the same type of component.