Product Overview The Juniper Networks QFX3600 switch is a high-performance, low latency, feature rich, 40GbE /10GbE platform that delivers a fabricready edge solution for the Juniper Networks QFabric System. Featuring standards-based bridging, routing, and Fibre Channel over Ethernet (FCoE) capabilities in a compact 1 U form factor, the QFX3600 is also a versatile Layer 2 and Layer 3 standalone data center top-of-rack switch. Product Description The Juniper Networks® QFX3600 Switch is the first 40GbE top-of-rack switch in the Juniper Networks switching portfolio, providing a 40GbE/10GbE QFabric Node edge solution for the Juniper Networks QFabric™ System. In standalone switch mode, the QFX3600 addresses a wide range of deployment scenarios, including traditional data centers, virtualized data centers, high-performance computing, network-attached storage, converged server I/O, and cloud computing. Featuring 16 quad small form-factor pluggable (QSFP+) transceiver ports, the QFX3600 delivers feature rich Layer 2 and Layer 3 connectivity to networked devices such as rack servers, blade servers, storage systems, and other switches in highly demanding, highperformance data center environments. When deployed with other components of the Juniper Networks QFabric family, including the QFX3100 Director and the QFX3600-I QFabric Interconnect (in a QFX3000-M QFabric System) or QFX3008-I QFabric Interconnect (in a QFX3000-G QFabric System), the QFX3600 delivers a fabric-ready QFabric Node edge solution that contributes to a high-performance, low latency, singletier data center fabric. A highly flexible device, the QFX3600 can also be deployed as part of a Juniper Networks Virtual Chassis or Virtual Chassis Fabric configuration, or in open fabric architectures such as MC-LAG. For added configuration flexibility, when operating in standalone switch mode, QFX3600 ports can be used as 4x10GbE ports using QSFP+ to SFP+ direct attach copper (DAC) or QSFP+ to SFP+ fiber splitter cables and optics. When operating as a QFabric Node in a QFabric System, the QFX3600 becomes a 10GbE or 40GbE edge device. Any port on the QFX3600 can be converted to a Virtual Chassis connection, enabling users to leverage all the benefits of Juniper’s unique Virtual Chassis technology, including high availability and simplified management and operations. When deployed as a leaf node in Juniper’s new Virtual Chassis Fabric architecture, the QFX3600 offers deterministic rack-to-rack throughput, high availability and a smooth transition from 1GbE to 10/40GbE. The QFX3600 can participate in the same Virtual Chassis or Virtual Chassis Fabric configuration with Juniper QFX3500, QFX5100 and EX4300 switches. For converged server edge access environments, the QFX3600 is also a standards-based FCoE transit switch, protecting investments in existing data center aggregation and Fibre Channel storage area network (SAN) infrastructures.

LCD panel and front overlay Redundant Copper or Fiber Management/Control Pland 1GbE Ports Port Side Fan/Power Supply Side Redundant Fans Trays Redundant AC or DC Power Supplies Data Center Deployments Today’s data centers are built with high-performance, small form-factor, multi-core blade and rack servers. The greater compute capacity and server densities enabled by these devices is increasing traffic levels, creating the need for a high-speed, low latency, storage- and I/O-converged networking solution that can maximize performance for physical servers, virtual servers, and storage in the data...

spine and up to 18 QFX3600, QFX3500, QFX5100 or EX4300 switches as leaf nodes. This architecture provides any rack-to-any rack deterministic throughput and low latency while simplifying network operations through a single point of management. QFabric Director The QFX3600, along with the EX4300, QFX3500 and QFX5100 switches, can act as leaf nodes in a Virtual Chassis Fabric deployment, providing support for data centers with mixed 1GbE, 10GbE and 40GbE servers, as well as environments transitioning from 1GbE to 10GbE or 40GbE servers. SRX Series Figure 4: Wire-speed configuration of QFX3000-M...

Figure 8: QFX3600 in a two-tier ECMP design High-Performance Ethernet Access L2 and L3 Deployments With its compact, 1 U form factor, high-density 40GbE/10GbE ports, front-to-back and back-to-front airflow, and rear port design, the QFX3600 is the ideal platform for top-of-rack deployments in high-performance, highly demanding data centers. Featuring 1.28 Tbps throughput, 960 Mpps forwarding capacity, low power consumption, and a form factor that makes it ideal for use in containerized data centers, the QFX3600 offers a highly efficient solution for aggregating high-performance servers in the...

• Intelligent Buffer Management: The QFX3600 switches have a total of 8MB shared buffers. While 25% of the total buffer space is dedicated, the rest is shared among all ports and is user configurable. The intelligent buffer mechanism in the QFX3600 effectively absorbs traffic bursts while providing deterministic performance, significantly increasing performance over static allocation. • Insight Technology for Analytics: The QFX3600 provides dynamic buffer utilization monitoring and reporting with an interval of 8 microseconds to provide microburst and latency insight. It calculates both queue...

Specifications (continued) Layer 2 Features • 2 QoS: Classification, rewrite, queuing L • apid Spanning Tree Protocol (RSTP) (IEEE 802.1w), MSTP (IEEE R 802.1s) • ridge protocol data unit (BPDU) protect B -- Ingress policing: 1 rate 2 color, 2 rate 3 color • Loop protect -- Egress policer, policer mark down action • Root protect -- Egress shaping: Per queue, per port • STP and VSTP running concurrently R • 2 hardware queues per port (8 unicast and 4 multicast) 1 • LAN – IEEE 802.1Q VLAN trunking V • Port-based VLAN • trict priority queuing (SPQ), shaped-deficit weighted round-robin S (SDWRR),...