CHAPTER 1
Virtual Chassis Fabric Overview
IN THIS CHAPTER
Virtual Chassis Fabric Overview | 2
Understanding Virtual Chassis Fabric Configuration | 4
Virtual Chassis Fabric Hardware Overview | 8
Virtual Chassis Fabric Overview
The Juniper Networks Virtual Chassis Fabric (VCF) provides a low-latency, high-performance fabric
architecture that can be managed as a single device. VCF is an evolution of the Virtual Chassis feature,
which enables you to interconnect multiple devices into a single logical device, inside of a fabric architecture.
The VCF architecture is optimized to support small and medium-sized data centers that contain a mix of
1-Gbps, 10-Gbps, and 40-Gbps Ethernet interfaces.
Video: What is Virtual Chassis Fabric?
A VCF is constructed using a spine-and-leaf architecture. In the spine-and-leaf architecture, each spine
device is interconnected to each leaf device. A VCF supports up to twenty total devices, and up to four
devices can be configured as spine devices. See Figure 1 on page 3 for an illustration of the VCF
spine-and-leaf architecture.
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