Qfx Series Qfabric System Architecture; Figure 2: Qfx Series Qfabric System Architecture; Qfx3000-G Qfabric System Overview - Juniper QFabric QFX3000-G Hardware Documentation

QFX Series QFabric System Architecture

Copyright © 2018, Juniper Networks, Inc.
In contrast to legacy multi-tiered data center architectures, the Juniper Networks QFX
Series QFabric System architecture provides a simplified networking environment that
solves the most challenging issues faced by data center operators. A fabric is a set of
devices that act in concert to behave as a single switch. It is a highly scalable, distributed,
Layer 2 and Layer 3 networking architecture that provides a high-performance,
low-latency, and unified interconnect solution for next-generation data centers as seen
in Figure 2 on page 5.

Figure 2: QFX Series QFabric System Architecture

A QFabric system collapses the traditional multi-tiered data center model into a single
tier where all access layer devices (known in the QFabric system model as Node devices)
are essentially directly connected to all other access layer devices across a very large
scale fabric backplane (known in the QFabric system model as the Interconnect device).
Such an architecture enables the consolidation of data center endpoints (such as servers,
storage devices, memory, appliances, and routers) and provides better scaling and
network virtualization capabilities than traditional data centers.
Chapter 1: QFX3000-G QFabric System Overview
Director devices
Virtual Chassis
control plane
Interconnect devices
Node devices
5