Juniper Networks QFX5700
High Density, Cost-Optimized, Modular Platform
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The Juniper Networks® QFX5700 Switch is a next-generation, modular and fabric-less spine-and-leaf switch that offers flexibility, cost efficiency with lower-per-bit, high-density 400GbE, 200GbE*, 100GbE, 50GbE*, 40GbE, 25GbE, and 10GbE interfaces for server and intra-fabric connectivity.
A versatile, future-proven solution for today’s data centers, the QFX5700 leverages the power of a fully programmable Broadcom’s Trident 4 chipset to support and deliver a diverse set of use cases. It supports advanced Layer 2, Layer 3, and Ethernet VPN (EVPN)- Virtual Extensible LAN (VXLAN) features. For large public cloud providers—early adopters of high-performance servers to meet explosive workload growth—the QFX5700 supports very large, dense, and fast 400GbE IP fabrics based on proven Internet scale technology. For enterprise customers seeking investment protection as they transition their server farms from 10GbE to 25GbE, the QFX5700 switch also provides a high radix-native 100GbE/400GbE EVPN-VXLAN spine option at reduced power and a smaller footprint.
The QFX5700 supports diverse use cases such as Data Center Fabric Spine, EVPN-VXLAN Fabric, Data Center Interconnect/Border, Secure DCI, multi-tier campus, campus IP fabric, and connecting firewall clusters in the DC to the fabric. Delivering 25.6 Tbps of bidirectional bandwidth, the switch is optimally designed for spine-and-leaf deployments in enterprise, high-performance computing (HPC), service provider, and cloud data centers.
The QFX5700 is a modular merchant silicon-based chassis offering a wide variety of ports configurations, including 400GbE, 200GbE*, 100GbE, 50GbE*, 40GbE, 25GbE, and 10GbE. The QFX5700 is equipped with up to four AC or DC power supplies, providing N+N feed redundancy or N+1 PSU redundancy when all power supplies are present. Two hot-swappable fan trays offer front-to-back (AFO) airflow, providing N+1 fan rotor redundancy at Chassis. The platform also includes support for in-line MACsec* line cards.
- Use Case: Data Center Fabric Spine, EVPN-VXLAN Fabric, Data Center Interconnect (DCI) Border, Secure DCI, Multitier Campus, Campus IP Fabric
- Port Density: 32 x 400GbE QSFP56-DD; 64 x 200GbE; 128 x 100GbE; 144 x 50/40/25/10GbE
- Throughput: Up to 25.6 Tbps (bidirectional)
The QFX5700 Switch offers a high-density, cost-optimized, 5 U 400GbE, 8 slot fabric-less modular platform, ideal for data centers where capacity and cloud services are being added as business needs grow. These services require higher network bandwidth per rack, as well as flexibility, making the 10/25/40/50/100/200/400GbE interface options of the QFX5700 switch ideal for server and intra-fabric connectivity. The QFX5700 is an optimal choice for spine-and-leaf deployments in enterprise, service provider, and cloud provider data centers.
Coupled with the widespread adoption of overlay technologies, the QFX5700 lays a strong foundation for your evolving business and network needs, offering deployment versatility to future-proof your network investment.
The Session Smart Router combines a service-centric control plane and a session-aware data plane to offer IP routing, feature-rich policy management, improved visibility, and proactive analytics. Session Smart Router also provides native zero trust security, leveraging hyper-segmentation. It includes several security features.
Features and Benefits:
Automation and programmability:
The QFX5700 supports several network automation features for plug-and-play operations, including zero-touch provisioning (ZTP), Network Configuration Protocol (NETCONF), Juniper Extension Toolkit (JET), Junos telemetry interface, operations and event scripts, automation rollback, and Python scripting.
Cloud-level scale and performance:
The QFX5700 supports best-in-class cloud-scale L2/L3 deployments with a low latency of 630 ns and superior scale and performance. This includes L2 support for 160,000 MAC addresses and Address Resolution Protocol (ARP) learning, which scales up to 64,000 entries at 500 frames per second. It also includes L3 support for 1.24 million longest prefix match (LPM) routes and 160,000 host routes on IPv4.
The QFX5700 is capable of both L2 and L3 gateway services. Customers can deploy overlay networks to provide L2 adjacencies for applications over L3 fabrics. The overlay networks use VXLAN in the data plane and EVPN or Open vSwitch Database (OVSDB) for programming the overlays, which can operate without a controller or be orchestrated with an SDN controller.
IEEE 1588 PTP Boundary Clock with Hardware Timestamping*:
IEEE 1588 PTP transparent/boundary clock is supported on QFX5700, enabling accurate and precise sub-microsecond timing information in today’s data center networks. In addition, the QFX5700 supports hardware timestamping; timestamps in Precision Time Protocol (PTP) packets are captured and inserted by an onboard field-programmable gate array (FPGA) on the switch at the physical (PHY) level.
Data packet timestamping*:
When the optional data packet timestamping feature is enabled, select packets flowing through the QFX5700 are timestamped with references to the recovered PTP clock. When these packets are received by nodes in the network, the timestamping information can be mirrored onto monitoring tools to identify network bottlenecks that cause latency. This analysis can also be used for legal and compliance purposes in institutions such as financial trading, video streaming, and research establishments.
As a switch capable of transporting data as well as storage traffic over Ethernet, the QFX5700 provides an IEEE data center bridging (DCB) converged network between servers with disaggregated flash storage arrays or an NVMe-enabled storage-area network (SAN). The QFX5700 offers a full-featured DCB implementation that provides strong monitoring capabilities on the top- of-rack switch for SAN and LAN administration teams to maintain clear separation of management.
Junos Evolved features:
The QFX5700 switch supports features such as L2/L3 unicast, EVPN-VXLAN*, BGP add- path, RoCEv2 and congestion management, multicast, 128- way ECMP, dynamic load balancing capabilities, enhanced firewall capabilities, and monitoring.
Junos OS Evolved Architecture:
Junos OS Evolved is a native Linux operating system that incorporates a modular design of independent functional components and enables individual components to be upgraded independently while the system remains operational. Component failures are localized to the specific component involved and can be corrected by upgrading and restarting that specific component without having to bring down the entire device.
State is the retained information or status pertaining to physical and logical entities. It includes both operational and configuration state, comprising committed configuration, interface state, routes, hardware state, and what is held in a central database called the distributed data store (DDS). State information remains persistent, is shared across the system, and is supplied during restarts.
All key networking functions such as routing, bridging, management software, and management plane interfaces, as well as APIs such as CLI, NETCONF, JET, Junos telemetry interface, and the underlying data models, resemble those supported by the Junos operating system. This ensures compatibility and eases the transition to Junos Evolved.
Modular 5 U
|Dimensions (W x H x D)||
19.0 in x 8.74 in (5RU) x 32 in (48.2 x 22.2 x 81.5 cm)
Redundant (N+N) hot-pluggable AC/ DC power supplies (2n)
Maximum power draw: 3338 W
Typical power draw: 2722 W
|IPv4 unicast/multicast routes||
|IPv6 unicast/multicast routes||
|Number of VLANs||
32,000 (tunnel mode); 64,000 (non-tunnel mode)
|Overlay Management and Protocols||
Contrail Networking, EVPN-VXLAN
|System throughput||Up to 25.6 Tbps (bidirectional)|
|Forwarding capacity||5.68 billion packets per second|
|Port density||32 ports of QSFP56-DD 400GbE/
128 Ports of QSFP28 100GbE
|Dimensions (W x H x D)||19.0 in x 8.74 in (5RU) x 32 in (48.2 x 22.2 x 81.5 cm)|
|Rack units||5 U|
|Weight||153.8 lbs. (69.8 kg) with all FRUs installed|
|Operating system||Junos OS Evolved|
|CPU||Intel Hewitt Lake, 32GB DDRAM|
|Total packet buffer||132MB|
|Recommended Software Version||Junos OS Evolved 21.2R2 EVO+|
|Warranty||Juniper standard one-year warranty|
- MAC addresses per system: 160,000
- VLAN IDs: 4000 (QFX5700)
- Number of link aggregation groups (LAGs): 128
- Number of ports per LAG: 64
- Firewall filters:
|Filters—TD4||Pipe supported||Scale number|
|IPACL—profile1||Yes (except LAG)||Up to 80,000|
|EPACL||Yes (except LAG)||Up to 8,000|
|IPACL—profile1||Yes (except LAG and IRB)||Up to 80,000|
|ERACLv4, ERACLv6||Yes (except LAG and IRB)||Up to 4,000|
|IVACL—profile1||No||Up to 20,000|
|EVACL||No||Up to 2,000|
|Operating temperature||32° to 104° F (0° to 40° C)|
|Storage temperature||-40° through 158° F|
|Operating altitude||Up to 6000 feet (1828.8 meters)|
|Relative humidity operating||5 to 90% (noncondensing)|
|Relative humidity nonoperating||5 to 95% (noncondensing)|
|Seismic||Designed to meet GR-63, Zone 4 earthquake requirements|
|Redundant System: Maximum power (without optics)||2830W|
|Redundant System: Typical power (without optics)||2193W|
|Non-redundant System: Maximum power (without optics)||2425W|
|Non-redundant System: Typical power (without optics)||1847W|
Architecture and Key Components
The QFX5700 can be used in L2 fabrics and L3 networks. You can choose the architecture that best suits your deployment needs and easily adapt and evolve as requirements change over time. The QFX5700 serves as the universal building block for these switching architectures, enabling data center operators to build cloud networks in their own way.
Layer 3 fabric: For customers looking to build scale-out data centers, a Layer 3 spine-and-leaf Clos fabric provides predictable, nonblocking performance and scale characteristics. A two-tier fabric built with QFX5700 switches as leaf devices and Juniper Networks QFX10000 modular switches in the spine can scale to support up to 128 40GbE ports or 128 25GbE and/or 10GbE server ports in a single fabric.
Junos OS Evolved ensures a high feature and bug fix velocity and provides first-class access to system state, allowing customers to run DevOps tools, containerized applications, management agents, specialized telemetry agents, and more.
The QFX5700 can be deployed as a universal device in cloud data centers to support 100GbE server access and 400GbE spine-and-leaf configurations, optimizing data center operations by using a single device across multiple network layers (see Figure 1). The QFX5700 can also be deployed in more advanced overlay architectures like an EVPN-VXLAN fabric. Depending on where tunnel terminations are desired, the QFX5700 can be deployed in either a centrally routed or edge-routed architecture.
|64x200GbE||QFX5700||200GbE spine or leaf with breakout cables|
|128x100GbE||QFX5700||100GbE access or leaf|
|144x50GbE||QFX5700||50GbE access or leaf with 50GbE breakout cables|
|128x40GbE||QFX5700||40GbE access or leaf|
|144x25GbE||QFX5700||25GbE access or leaf with 25GbE break out cables|
|144x10GbE||QFX5700||10GbE access or leaf with 10GbE break out cables|
Layer 2 Features
- STP—IEEE 802.1D (802.1D-2004)*
- Rapid Spanning Tree Protocol (RSTP) (IEEE 802.1w); MSTP (IEEE 802.1s)*
- Bridge protocol data unit (BPDU) protect*
- Loop protect*
- Root protect*
- RSTP and VLAN Spanning Tree Protocol (VSTP) running concurrently*
- VLAN—IEEE 802.1Q VLAN trunking
- Routed VLAN interface (RVI)
- Port-based VLAN
- MAC address filtering*
- Static MAC address assignment for interface
- MAC learning disable
- Link Aggregation and Link Aggregation Control Protocol (LACP) (IEEE 802.3ad)
- IEEE 802.1AB Link Layer Discovery Protocol (LLDP)
- LAG load sharing algorithm—bridged or routed (unicast or multicast) traffic:
- IP: Session Initiation Protocol (SIP), Dynamic Internet Protocol (DIP), TCP/UDP source port, TCP/UDP destination port
- L2 and non-IP: MAC SA, MAC DA, Ether type, VLAN ID, source port
Layer 3 Features
- Static routing
- OSPF v1/v2
- OSPF v3
- Filter-based forwarding
- Virtual Router Redundancy Protocol (VRRP)*
- Virtual routers
- Loop-free alternate (LFA)
- BGP (Advanced Services or Premium Services license)
- IS-IS (Advanced Services or Premium Services license)
- Dynamic Host Configuration Protocol (DHCP) v4/v6 relay
- VR-aware DHCP
- IPv4/IPv6 over GRE tunnels (interface-based with decap/ encap only)
- Internet Group Management Protocol (IGMP) v1/v2
- Multicast Listener Discovery (MLD) v1/v2
- IGMP proxy, querier
- IGMP v1/v2/v3 snooping*
- Intersubnet multicast using IRB interface*
- MLD snooping*
- Protocol Independent Multicast PIM-SM, PIM-SSM, PIM- DM, PIM-Bidir*
- Multicast Source Discovery Protocol (MSDP)*
Security and Filters
- Secure interface login and password
- Secure boot
- Ingress and egress filters: Allow and deny, port filters, VLAN filters, and routed filters, including management port filters and loopback filters for control plane protection
- Filter actions: Logging, system logging, reject, mirror to an interface, counters, assign forwarding class, permit, drop, police, mark
- SSH v1, v2
- Static ARP support
- Storm control, port error disable, and autorecovery*
- Control plane denial-of-service (DoS) protection
- Image rollback
Quality of Service (QoS)
- L2 and L3 QoS: Classification, rewrite, queuing
- Rate limiting:
- Ingress policing: 1 rate 2 color, 2 rate 3 color
- Egress policing: Policer, policer mark down action
- Egress shaping: Per queue, per port
- 12 hardware queues per port (8 unicast and 4 multicast)
- Strict priority queuing (LLQ), shaped-deficit weighted round-robin (SDWRR), weighted random early detection (WRED)
- 802.1p remarking
- Layer 2 classification criteria: Interface, MAC address, Ether type, 802.1p, VLAN
- Congestion avoidance capabilities: WRED
- Trust IEEE 802.1p (ingress)
- Remarking of bridged packets
- EVPN support with VXLAN transport
- EVPN pure type-5 route support with symmetric inter-irb routing
- All-active multihoming support for EVPN-VXLAN (ESI-LAG aka EVPN-LAG)
- Multiple EVI (EVPN instances) aka multiple MAC-VRF for Mac advertisement
- MAC-VRF (EVI) multiple EVPN service-type support: vlan- based, vlan-aware, vlan-bundle
- ARP/ND suppression aka proxy-arp/nd
- Ingress multicast Replication
- IGMPv2 snooping support fabric wide: using EVPN route type 6,
- IGMPv2 snooping support for L2 multihoming scenarios: EVPN route type-7 and type-8
- IP prefix advertisement using EVPN with VxLAN encapsulation
Data Center Bridging (DCB)
- Explicit congestion notification (ECN)
- Priority-based flow control (PFC)—IEEE 802.1Qbb*
- Bidirectional Forwarding Detection (BFD)
- Uplink failure detection (UFD)*
Visibility and Analytics
- Switched Port Analyzer (SPAN)
- Remote SPAN (RSPAN)
- Encapsulated Remote SPAN (ERSPAN)
- sFlow v5
- Junos telemetry interface
Management and Operations
- Role-based CLI management and access
- CLI via console, telnet, or SSH
- Extended ping and traceroute
- Junos OS Evolved configuration rescue and rollback
- SNMP v1/v2/v3
- Junos OS Evolved XML management protocol
- High frequency statistics collection
- Automation and orchestration
- Zero-touch provisioning (ZTP)
- Junos OS Evolved event, commit, and OP scripts
- IEEE 802.1D
- IEEE 802.1w
- IEEE 802.1
- IEEE 802.1Q
- IEEE 802.1p
- IEEE 802.1ad
- IEEE 802.3ad
- IEEE 802.1AB
- IEEE 802.3x
- IEEE 802.1Qbb*
- IEEE 802.1Qaz
- T11 Standards
- INCITS T11 FC-BB-5
Download the Juniper QFX5700 Data Sheet (PDF).
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