Guide That Contains This Content
[+] Expand All
[-] Collapse All

    QFX10002 Hardware Overview

    The Juniper Networks QFX10002 is a fixed configuration data center switch. As part of the QFX10000 line of aggregation and spine switches, the QFX10002 models provide the flexibility of 10-Gbps, 40-Gbps, and 100-Gbps port speeds in a 2 U fixed configuration. This topic covers:

    QFX10002 Models

    The QFX10002 is available in a 36-port model (QFX10002-36Q) and a 72-port model (QFX10002-72Q). See Figure 1 and Figure 2 for illustrations of the models.

    Figure 1: QFX10002-36Q Port Panel

    QFX10002-36Q Port Panel

    Figure 2: QFX10002-72Q Port Panel

    QFX10002-72Q Port Panel

    The QFX10002 models feature PHY-less interfaces to save on power and to lower latency. The ports on both models support quad small-form factor pluggable (QSFP+) transceivers and the 28-Gbps QSFP+ Pluggable Solution (QSFP28) transceivers. The interfaces on a QFX10002 can be configured to support 10-Gbps, 40-Gbps, and 100-Gbps port speeds. See Table 1.

    Table 1: Interface Speeds




    10 Gigabit Ethernet



    40 Gigabit Ethernet



    100 Gigabit Ethernet



    Throughput and I/O Scale

    The QFX10002 is built on Juniper Networks custom silicon Q5 ASICs. The Q5 ASICs allow the QFX10002 to scale from 2.88 Tbps (QFX10002-36Q) to 5.76 Tbps (QFX10002-72Q) of throughput. The control plane is enhanced by a 2.5-GHz quad core Intel CPU and 16 GB of SDRAM.

    The QFX10002 can blend high I/O capacity and high local scale by connecting Hybrid Memory Cubes (HMCs) to the Q5 ASICs. These high-efficiency memory modules provide:

    • Packet buffering
    • Virtual output queue memory
    • Improved logical system scale by augmenting local tables such as forwarding information base (FIB), MPLS, and MAC addresses

    Cooling and Power

    The cooling system in a QFX10002 consists of three 80-W (or 150 cubic feet per minute (CFM) at full speed) fan modules in a fan tray. Each fan modules has dual counter rotating fans. These fan modules can be hot-swapped and hot-inserted, meaning that you do not need to power off the switch or disrupt the switching function to replace a module.

    The QFX10002 brings air into the vents in the port panel and exhausts warmed air through the field-replaceable unit (FRU) panel. This type of airflow is known as airflow out or port-to-FRU airflow.

    The AC or DC power supplies in a QFX10002 are hot-removable and hot-insertable FRUs. Four 1600-W power supplies are installed in the QFX10002-72Q and two power supplies in the QFX10002-36Q at the factory. See Figure 3 for an example of the QFX10002-72Q FRU panel. Each power supply provides 12 VDC output with a standby voltage of 12-VDC.

    Figure 3: QFX10002-72Q FRU Panel

    QFX10002-72Q FRU Panel
    Power supply modules (4)
    ESD point
    Fan modules (3)

    System Software

    QFX Series devices use the Junos operating system (OS), which provides Layer 2 and Layer 3 switching, routing, and security services. Junos OS is installed on a QFX10002 switch’s 25-gigabyte (GB) internal NAND solid state flash drive. The same Junos OS code base that runs on QFX10002 switches also runs on all Juniper Networks EX Series switches, and M Series, MX Series, and T Series routers.

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

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

    Modified: 2018-01-30