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QFX3000-M Interconnect Devices Overview

The QFX3000-M QFabric system uses either a Juniper Networks QFX5100-24Q or a QFX3600-I Interconnect device as the data plane switch fabric for Juniper Networks QFX3500, QFX3600, or QFX5100 Node devices. Both models of interconnect devices are 1 U, modular, and fully-redundant chassis. Together the Node devices and the Interconnect device form a multistage, nonblocking switch fabric that provides a high-performance, low-latency, unified interconnect solution for next-generation data centers. The small form-factor and front-facing ports in the device make it suitable for deployment in high-density server racks and container-based data center deployments. See Understanding the QFabric System Data Plane.

The Node devices and the Interconnect devices are connected to Juniper Networks QFX3100 Director devices in an out-of-band management network through Juniper Networks EX4200 or EX4300 Ethernet Switches. The QFX3100 Director devices present the QFabric system devices as a single network entity, which enables simplified management of your data center using the Junos OS command-line interface (CLI) or Junos Space. See Understanding the QFabric System Control Plane.

Note:

Do not mix QFX5100-24Q operating as an Interconnect device with QFX3600-I Interconnect devices in the same QFX3000-M QFabric system. When QFX5100-24Q Interconnect devices are available, convert any QFX3600-I Interconnect devices to standalone QFX3600 switches or to QFX3600 Node devices.

Software

QFX Series devices use the Junos operating system (OS), which provides Layer 2 and Layer 3 switching, routing, and security services. The same Junos OS code base that runs on QFX Series devices also runs on all Juniper Networks EX Series, J Series, M Series, MX Series, and T Series devices.

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

You can manage QFX Series devices using the Junos OS command-line interface (CLI), accessible through the console and management ports on the device.

When a QFX Series device operates as part of a QFabric system, all the devices in the data center fabric are managed through the Administrator software installed on the QFX3100 Director devices. Each device in a QFabric system is interconnected in a single control plane and management network, using the redundant management ports on each device.

Hardware

QFX5100-24Q

The QFX5100-24Q is a 40-Gigabit Ethernet QSFP+ switch with 24 high-density QSFP+ ports. In QFX3000-M QFabric systems, the QFX5100-24Q chassis can be configured either as a Node device or as an Interconnect device. The QFX5100-24Q chassis has a 1 U form factor and comes standard with redundant fans and redundant power supplies. The QFX5100-24Q switch has two module bays for the optional expansion module, QFX-EM-4Q, which can add a total of 8 additional QSFP+ ports to the chassis. The port panel is shown in Figure 1, and the Field Replacable Unit (FRU) end of the device is shown in Figure 2.

Figure 1: QFX5100-24Q Port PanelQFX5100-24Q Port Panel
Figure 2: QFX5100-24Q FRU PanelQFX5100-24Q FRU Panel

QFX3600-I

The QFX3600 and QFX3600-I chassis are 40-Gigabit Ethernet QSFP+ switch with 16 high-density QSFP+ ports. In QFX3000-M QFabric systems, the QFX3600 can be configured either as a Node device or as an Interconnect device. The compact QFX3600-I chassis is 1 rack unit (1 U) in size and designed to fit in industry-standard 19-inch rack-mount enclosures, as well as high-density server racks and container-based data center deployments. See Figure 3 and Figure 4 and Chassis Physical Specifications for QFX3600 and QFX3600-I Devices.

Figure 3: QFX3600-I Chassis FrontQFX3600-I Chassis Front
  1

LCD panel

  4

C0S 1-Gbps SFP management port

  2

QSFP+ ports

  5

C0 1000BASE-T RJ-45 management port

  3

C1S 1-Gbps SFP management port

  6

C1 1000BASE-T RJ-45 management port

Figure 4: QFX3600-I Chassis RearQFX3600-I Chassis Rear
  1

Power supplies

  2

Fan trays

The front panel of the QFX3600-I chassis has an LCD panel that displays the device hostname and the number of active alarms. It also has sixteen 40-Gbps ports labeled Q0 through Q15 that support quad small form-factor pluggable plus (QSFP+) transceivers. See Front Panel of a QFX3600-I Interconnect Device and The Hardware Compatibility Tool.

The rear panel of the QFX3600-I chassis has two redundant power supplies and three redundant fan trays that are field-replaceable and hot-swappable. See Rear Panel of QFX3600 and QFX3600-I Devices.