QFX10008 System Overview

Benefits of QFX10000 Modular Chassis Switches

Chassis Description

The QFX10008 is 13 U tall. Up to 3 QFX10008 chassis can fit in a standard 42 U rack with adequate cooling and power. All key QFX10008 components are field-replaceable units (FRUs). Figure 1 illustrates the key components visible from the front of the chassis, Figure 2 illustrates the components that are visible from the rear of the chassis, and Figure 3 illustrates the components that are internal to the chassis.

Figure 1: QFX10008 Chassis Front

1 — RCBs slots 0 and 1 (numbered top to bottom)	4 — Installation holes for the front panel
2 — Status LED panel	5 — Line card slots 0-7 (numbered top to bottom)
3 — Handles

Some chassis ship with an enhanced power bus to support the power needs of higher wattage line cards. Chassis with the enhanced power bus have a modified Status Panel (see QFX10000 Status Panel).

Figure 2: QFX10008 Chassis Rear

1 — AC or DC power supplies slots 0-7 (numbered top to bottom)

2 — Fan trays with redundant fans

Figure 3 illustrates the components that are internal to the chassis.

Figure 3: QFX10008 Chassis Internal Components

1 — Fan tray controllers slots 0 and 1 (numbered left to right)

2 — Switch interface boards (SIBs) slots 0-5 (numbered left to right)

See QFX10008 Chassis Physical Specifications and QFX10000 Field-Replaceable Units.

Routing and Control Board

The Routing and Control Board (RCB) contains a routing engine and Control Board that is responsible for system management and system control in the QFX10008 switch. See Figure 4. RCBs are field replaceable and installed in the front of the chassis in the slots labeled CB0and CB1. The base configuration has a single RCB; the fully-redundant configuration has two RCBs. The RCB also contains Precision Time Protocol (PTP) ports and four Media Access Control Security (MACsec) capable ports. See QFX10000 Routing and Control Board Description.

Figure 4: QFX10000 Routing and Control Board (QFX10000-RE)

Line Cards

The QFX10008 features eight horizontal line card slots and supports line rate for each line card. The line cards combine a Packet Forwarding Engine (PFE) and Ethernet interfaces enclosed in a single assembly. The QFX10008 line-card architecture is based on number of identical, independent PFE slices each with 500 Gbps full-duplex throughput. Line cards are FRUs that can be installed in the line-card slots labeled 0 through 7 (top to bottom) on the front of the switch chassis. All line cards are hot-removable and hot-insertable.

The QFX10008 supports the following line cards:

• QFX10000-36Q–provides 36 ports of 40-gigabit QSFP+. Twelve ports are designed to be 100-Gigabit capable using QSFP28. Each of the 40-Gigabit QSFP+ can be configured as either a native 40-Gigabit port or four 10-Gigabit ports using a breakout cable. With breakout cables, the line card supports a maximum of 144 logical 10-Gigabit Ethernet ports.

• QFX10000-30C–provides 30 ports of either 100-gigabit or 40-gigabit QSFP28. The ports autodetect the type of transceiver installed and set the configuration to the appropriate speed. Each of the 40-gigabit ports can be configured as either a native 40-gigabit port or four 10-gigabit ports using a breakout cable. With breakout cables, the line card supports a maximum of 96 logical 10-Gigabit Ethernet ports.

• QFX10000-30C-M–provides 30 ports of either 100-gigabit or 40-gigabit QSFP28 that support MACsec security features.

• QFX10000-60S-6Q–provides 60 SFP+ ports that can be configured for either 1-gigabit or 10-gigabit speeds. The card also provides six flexible configuration ports for 100-gigabit and 40-gigabit speeds. Of the six flexible configuration ports, two ports have QSFP28 sockets that support either 100-gigabit or 40-gigabit speeds. The remaining four ports have QSFP+ sockets that can be configured as either a native 40-gigabit port or four 10-gigabit ports using a breakout cable. With breakout cables, the line card supports a maximum of 84 logical 10-Gigabit Ethernet ports.

• QFX10K-12C-DWDM-provides 6 coherent dense wavelength-division multiplexing (DWDM) ports with built-in optics. The card supports MACsec security features and provides a flexible rate modulation at 100 Gbps, 150 Gbps, and 200 Gbps speeds.

See Figure 5 for an example of a QFX10008 line card.

Figure 5: QFX10000-36Q Line Card

Switch Fabric

Five Switch Interface Boards (SIBs) provide the necessary switching functionality to a base configuration QFX10008. A sixth SIB is available in the redundant configuration to provide n+1 redundancy. SIBs are installed between the line cards and the fan trays inside of the chassis (see Figure 6). Each QFX10008 SIB has eight connectors that match to a line-card slot, eliminating the need for a backplane. When all six SIBs are installed, the QFX10008 has a net switching capacity of 42 Tbps. See QFX10008 Switch Interface Board.

Figure 6: SIB (QFX10008-SF)

Cooling System

The cooling system in a QFX10008 consists of two hot-removable and hot-insertable field-replaceable fan trays (see Figure 7) and two fan tray controllers (see Figure 8). The fan trays install vertically on the rear of the chassis and provides front-to-back chassis cooling. See QFX10008 Cooling System.

Figure 7: Fan Tray ( QFX10008-FAN)

Figure 8: Fan Tray Controller (QFX10008-FAN-CTRL)

Power Supplies

The QFX10008 switches support AC, DC, high voltage alternating current (HVAC) and high voltage direct current (HVDC) by offering the following power supplies:

• QFX10000-PWR-AC

• JNP10K-PWR-AC2

• QFX10000-PWR-DC

• JNP10K-PWR-DC2

All of the power supplies are fully redundant, load-sharing, and hot-removable and hot-insertable field-replaceable units (FRUs). Each QFX10008 base configuration has three QFX10000-PWR-AC or QFX10000-PWR-DC power supplies; redundant configurations hold the maximum of six QFX10000-PWR-AC or QFX10000-PWR-DC power supplies. There are also high-voltage alternating current (HVAC), DC and high-voltage direct current (HVDC) base and redundant configurations. See QFX10008 Configurations and Upgrade Options. Each power supply has an internal fan for cooling. You can install the power supplies in any slot. See Table 1 and Figure 9 through Figure 12. See QFX10000 Status Panel. Table 1 provides the specifications for these different power supplies.

Figure 9: QFX10000-PWR-AC Power Supply

Figure 10: JNP10K-PWR-AC2 Power Supply

Figure 11: QFX10000-PWR DC Power Supply

Figure 12: QFX10000-PWR-DC Power Supply

Table 1 provides an overview of the differences among the power supplies.

Software

The Juniper Networks QFX Series Ethernet Switches runs the Junos operating system (Junos OS), which provides Layer 2 and Layer 3 switching, routing, and security services. The same Junos OS code base that runs on QFX Series switches also runs on all Juniper Networks ACX Series, EX Series, M Series, MX Series, and T Series routers and SRX Series Firewalls.

QFX10008 Configurations

Table 2 lists the four hardware configurations for a QFX10008 modular chassis—base (AC version), redundant (AC and DC versions), and redundant (HVAC, DC, and HVDC)—and the components included in each configuration.

Upgrade Kits

If you would like to be using newer technologies, such as 14.4 Tbps line cards, you can upgrade your QFX10008 hardware configurations to become one of the newer PTX10008 hardware offerings. You can convert your QFX10008 switch to a PTX10008 router using an upgrade kit. Upgrading requires JNP10008-FAN2, JNP10008-FTC2 cooling system, and 5550 W power supplies. Depending on whether you already have the newer cooling system and power supplies will determine your upgrade kit. You can useTable 3 to find the right upgrade kit.