By Walter J. Goralski, Cathy Gadecki, Michael Bushong

Juniper offers a broad portfolio of switches running Junos to meet needs from the branch to the campus to the data center. The decision of what platform to use depends on where you’re deploying it, and thereby, the required throughput and feature set.

Juniper EX series switches

The Juniper Networks EX Series Ethernet Switches come in a range of high performance and high port density platforms for the access, aggregation, and core layers of the network.

The EX Series switches meet today’s most advanced switching requirements for security and unified communications with integrated access control policy enforcement and extensive quality of service (QoS) features. Juniper’s Virtual Chassis technology, available with the EX4200, EX4500, and EX8200 Ethernet Switches, enables multiple interconnected switches to operate as a single, logical device, reducing the number of switches and interconnections to manage.

EX Series General Usage Tips
EX2200 Access-layer deployments in branch offices and campus networks
requiring a level of functionality and performance typically
associated with higher-cost Ethernet switches
EX3200 Low-density access deployments in the wiring closets of remote
offices and small LANs in large office buildings that require a
high-performance standalone solution
EX4200 Data center and campus environments that require both the
reliability of modular systems and the economics and flexibility of
stackable switches in one high-performance, scalable solution
EX4500 High-density 10 gigabit per second (Gbps) data center, campus,
and service provider deployments requiring a scalable, compact,
high-performance platform
EX8200 Data center and campus core environments that require the
flexibility of modular platforms for high port densities,
scalability, and high availability

QFX series switches

Juniper’s QFabric enables a revolutionary data center design by creating a single tier network that operates like a single Ethernet switch. In designing QFabric, Juniper has essentially taken the three basic components of a self-contained switch fabric — linecards, backplane, and Routing Engines — and broken them out into independent, stand-alone devices — the QF/Node, the QF/Interconnect, and the QF/Director, respectively.

The total solution provides a quantum leap forward in the scale and performance of the data center backbone.

QFX Series General Usage Tips
QFX3500 High performance and high-density 10 Gbps data center
deployments requiring compact, ultra-low latency, feature-rich
Layer 2 and Layer 3 switch with Fibre Channel I/O convergence
capabilities. QFX3500 is also a fabric-ready solution and
transitions into a QF/Node edge device in a QFabric
architecture.
QFabric Components: QF/Node, QF/Interconnect, and
QF/Director
Modern data center network architectures that require support
for virtualization, convergence, and cloud computing. QFabric
scales elegantly and eliminates operational expenses and complexity
of today’s hierarchical architecture.

For the very latest on the Juniper products running Junos, visit the Juniper website Product and Services page.