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by Juniper
Product Line: Juniper QFX3100 Series
Product Type: QFabric Interconnect
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Product Description

The QFX3100 features dimensions of 17.5 x 3.5 x 23.75 in and a weight of 41.2 lb, designed for efficient space utilization and easy deployment in data centers. It is powered by a 2.1 GHz dual Intel Quad-Core processor with 36 GB DRAM, supporting dual Ethernet management ports and two I/O slots with 4x1GbE ports each, ensuring high-speed connectivity to the QFabric control plane Ethernet network. The device operates within a temperature range of 41°F to 104°F, supports a maximum power consumption of 476 watts, and achieves an operational mean time between failures of 96,125 hours, highlighting its reliability and performance efficiency in demanding environments.

FAQs for the QFX3100

  • What are the dimensions of the QFX3100?
    The QFX3100 dimensions are 17.5 x 3.5 x 23.75 inches (44.45 x 8.89 x 60.33 cm).
  • How much does the device weigh?
    It weighs 41.2 lb (18.69 kg).
  • What power specifications does the QFX3100 support?
    The device supports a power feed of 100-240 V AC (single phase) with an AMP rating of 8 A.
  • What is the maximum power consumption of the QFX3100?
    Maximum power consumption is 476 watts.
  • What are the heat dissipation values for the QFX3100?
    Maximum heat dissipation is 1,624 BTU, and nominal is 751 BTU.
  • How does air flow through the QFX3100?
    Air flow is designed from front to back, with options for 4-pole rack mount and 2-pole mid-mount.
  • What is the Operational Mean Time Between Failures (MTBF) for the QFX3100?
    The operational MTBF is 96,125 hours.
  • Can you detail the management and connectivity options of the QFX3100?
    It has dual Ethernet management ports and two I/O slots, each with 4x1GbE ports (RJ-45 or SFP) for connectivity to the QFabric control plane Ethernet network.
  • What are the operating temperature ranges for the QFX3100?
    The operating temperature ranges from a minimum of 41°F to a maximum of 104°F.
  • What are the storage conditions for the QFX3100?
    Storage temperature ranges from a minimum of -40°F to a maximum of 158°F, with a non-operating altitude up to 40,000 ft (12,192 m) and relative humidity non-operating from 5 to 95% (noncondensing).

Product Review

The Juniper QFX3100, with dimensions of 17.5 x 3.5 x 23.75 inches and a weight of 41.2 lb, is designed for space and weight efficiency in data centers. It features a dual Intel Quad-Core processor, 36 GB DRAM, and hot-swappable 560 watt AC power supplies, ensuring reliable performance and ease of maintenance. However, its maximum power consumption of 476 watts and heat dissipation of 1,624 BTU could present challenges in environments where power efficiency and cooling are critical considerations.


The Juniper QFX3100 is designed to meet the demands of modern networking environments, providing a high-performance solution with its advanced hardware specifications. This device plays a crucial role in the connectivity and management of QFabric systems, offering efficient data handling and network management capabilities. At the heart of the QFX3100 is a 2.1 GHz dual Intel Quad-Core processor, supported by 36 GB of DRAM, ensuring smooth and efficient processing of network tasks. This powerful processing capability is complemented by two I/O slots, each capable of hosting 4x1GbE ports (RJ-45 or SFP), which provide connectivity to the QFabric control plane Ethernet network. These features ensure that the QFX3100 can handle a high volume of data, making it an essential component in any network infrastructure. The hardware is housed in a durable chassis measuring 17.5 x 3.5 x 23.75 inches and weighs 41.2 lb, making it suitable for rack-mounted installations with options for both 4-pole rack mount and 2-pole mid-mount configurations. This versatility ensures that the QFX3100 can be easily integrated into various network environments. Power efficiency is a key aspect of the QFX3100, with a power feed voltage of 100-240 V AC (single phase) and an AMP rating of 8 A. The device has a maximum power consumption of 476 watts and a nominal power consumption of 220 watts, with heat dissipation rates of 1,624 BTU maximum and 751 BTU nominal. This efficiency is critical for maintaining operational costs and sustainability in data centers.
  • Dual Ethernet management ports enhance remote management capabilities, allowing for seamless network management and monitoring.
  • Hot-swappable 560 watt AC power supplies ensure uninterrupted power supply and easy maintenance without needing to power down the device.
  • The operational mean time between failures (MTBF) is 96,125 hours, highlighting the reliability and durability of the QFX3100 in continuous operation.
The device operates effectively within a temperature range of 41°F to 104°F and can be stored in temperatures ranging from -40°F to 158°F. It is designed to function at altitudes of up to 10,000 ft when operating and up to 40,000 ft when non-operating, with relative humidity tolerances of 8 to 90% (noncondensing) during operation and 5 to 95% (noncondensing) during storage. These specifications ensure that the QFX3100 can perform reliably in a wide range of environmental conditions. Airflow through the unit is designed to go from front to back, supporting optimal cooling and efficient heat dissipation. This design helps in maintaining the performance of the device by ensuring that the internal components operate within their recommended temperature ranges. In conclusion, the Juniper QFX3100 is a critical component for network infrastructures, offering high processing power, efficient power consumption, and reliable performance. Its design and specifications make it an ideal choice for managing and connecting QFabric systems within data centers and enterprise networks.


Part NumberJuniper QFX3100
Dimensions44.45 cm x 8.89 cm x 60.33 cm
Weight18.69 kg
Power Supply Voltage100-240 V AC, single phase
Current Rating8 A
Maximum Power Use476 W
Typical Power Use220 W
Max Heat Output1,624 BTU/h
Standard Heat Output751 BTU/h
Cooling Airflow DirectionFront to back
Mounting Options4-pole rack mount, 2-pole mid-mount
Average Time Before Failure96,125 hours
Management PortsDual Ethernet
Expansion Slots2 slots with 4x1GbE each, RJ-45 or SFP
Processor2.1 GHz, Dual Intel Quad-Core
Memory36 GB DRAM
Power SuppliesHot-swappable, 560 watt AC
Minimum Operating Temperature5°C
Maximum Operating Temperature40°C
Minimum Storage Temperature-40°C
Maximum Storage Temperature70°C
Max Operating Altitude3,048 m
Max Non-operating Altitude12,192 m
Operating Humidity Range8% to 90% (non-condensing)
Non-operating Humidity Range5% to 95% (non-condensing)

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