EX4650 Ethernet Switch Datasheet

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Product Overview

The EX4650 line of Ethernet switches delivers high scale, high availability, and high performance for campus distribution deployments. The EX4650 offers fixed 1GbE/10GbE/25GbE ports with 40GbE/100GbE uplinks that support advanced campus environments, allowing them to provide the onramp to multicloud, to deploy cutting edge cloud applications, and to embrace IoT technology. It is also flexible enough for use in enterprise on-premises top-of-rack and service provider aggregation deployments.

The EX4650 is onboarded, provisioned, and managed in the Juniper Mist Cloud Architecture. Mist Wired Assurance delivers better experiences for connected devices through AI-powered automation and service levels.


Product Description

The Juniper Networks® EX4650 Ethernet Switch delivers 4 Tbps of Layer 2 and Layer 3 connectivity to networked devices such as secure routers, servers, and other switches. Featuring 48 wire-speed 10GbE/25GbE small form-factor pluggable and pluggable plus transceiver (SFP/SFP+/SFP28) ports and 8 wire-speed 40GbE/100GbE quad SFP+ transceiver (QSFP+/QSP28) ports in a compact 1 U platform, the EX4650 provides the flexibility to support mixed 1GbE, 10GbE, 25GbE, 40GbE, and 100GbE environments. Four models are available: two featuring AC power supplies with front-to-back or back-to-front airflow, and two featuring DC power supplies with front-to-back or back-to-front airflow. All models include dual power supplies.


Key Components

The EX4650 switch includes native 25GbE (fiber only) and either 40GbE or 100GbE fixed-configuration options with rich L2, L3, Ethernet VPN (EVPN), and MPLS features. The EX4650 switches run the same reliable, high-performance Juniper Networks Junos® operating system used by Juniper Networks EX Series and QFX Series Ethernet Switches, SRX Series Services Gateways, and Juniper routers, ensuring a consistent control plane feature implementation and user experience across the entire Juniper infrastructure.

EX4650 Switch Models

The EX4650 switch is a compact, 1 U platform that provides high throughput, very low latency, and a rich set of Junos OS features. The performance of the EX4650’s control plane is further enhanced with a powerful 2.3 GHz quad-core Intel CPU with 16 GB of memory and 64 GB SSD storage.

The EX4650-48Y is a 25GbE/100GbE campus distribution switch offering 48 SFP28 transceiver ports and eight QSFP28 ports that can be configured as 8x40GbE or 8x100GbE ports, with an aggregate throughput of 4 Tbps or 2.98 Bpps per switch. For added flexibility, each QSFP28 port can also be configured as 4x25GbE ports using breakout cables, increasing the total number of supported 25GbE ports to 80 per switch.


EX4650-48Y Highlights

The EX4650-48Y switch features the following:

  • Support for high-density, multispeed 1GbE/10GbE/25GbE downlinks and 40GbE/100GbE uplinks for access and aggregation configurations, with up to 48 25GbE ports and up to eight 100GbE uplink ports in a 1 U platform
  • Throughput of up to 4 Tbps L2 and L3 performance, with latency as low as 550 nanoseconds
  • A 2.3 GHz quad-core Intel CPU with 16 GB memory and 64 GB SSD storage
  • Feature-rich automation capabilities with support for Python and Zero Touch Provisioning (ZTP)
  • Support for virtualization protocols such as Virtual Extensible LAN (VXLAN)
  • Advanced Junos OS features such as EVPN, BGP add-path, MPLS, L3 VPN, and IPv6 6PE


Architecture and Key Components

Cloud Management with Juniper Mist Wired Assurance

Juniper Mist Wired Assurance, a cloud-based service driven by Mist AI to claim, configure, manage, and troubleshoot the EX4650, delivers AI-powered automation and service levels to ensure a better experience for connected devices. Wired Assurance leverages rich Junos switch telemetry data to simplify operations, reduce mean time to repair, and improve visibility. Wired Assurance offers the following features:

  • Day 0 operations—Onboard switches seamlessly by claiming a greenfield switch or adopting a brownfield switch with a single activation code for true plug-and-play simplicity.
  • Day 1 operations—Implement a template-based configuration model for bulk rollouts of traditional and campus fabric deployments, while retaining the flexibility and control required to apply custom site- or switch-specific attributes. Automate provisioning of ports via Dynamic Port Profiles.
  • Day 2 operations—Leverage the AI in Juniper Mist Wired Assurance to meet service-level expectations such as throughput, successful connects, and switch health with key pre- and post-connection metrics (see Figure 1). Add the self-driving capabilities in Marvis Actions to detect loops, add missing VLANs, fix misconfigured ports, identify bad cables, isolate flapping ports, and discover persistently failing clients (see Figure 2). And perform software upgrades easily through Juniper Mist cloud.

Figure 1: Juniper Mist Wired Assurance service-level expectations


Figure 2: Marvis Actions for wired switches

The addition of Marvis, a complementary Virtual Network Assistant driven by Mist AI, lets you start building a self-driving network that simplifies network operations and streamlines troubleshooting via automatic fixes for EX Series switches or recommended actions for external systems.

For more information see Juniper Mist Wired Assurance.


EVPN-VXLAN Technology

The EX4650 embraces open standards and extends the industry-standard EVPN-VXLAN technology already supported in both the data center and campus. With enterprise applications moving to the cloud, it has become necessary to deploy IP fabrics as enterprise fabrics with L2 extensions using VXLAN. The EX4650 is capable of both L2 and L3 VXLAN gateway services, allowing customers to deploy networks that provide L2 adjacencies for applications over L3 fabrics. EVPN-VXLAN offers a scalable way to build and interconnect multiple campuses, data centers, and public clouds, delivering the following benefits:

  • Greater network efficiency
  • Based on industry standards
  • Scalable at all network layers
  • Faster convergence
  • Flexible and secure architecture


Junos OS

The high-performance EX4650 runs Junos OS, Juniper’s powerful and robust network operating system that powers all Juniper switches, routers, and firewalls. Key Junos OS features that enhance the functionality and capabilities of the EX4650 include:

  • Software modularity, with process modules running independently in their own protected memory space and with the ability to do process restarts
  • Commit and rollback functionality that ensures error-free network configurations
  • A powerful set of scripts for on-box problem detection, reporting, and resolution


Junos OS Software License

The software features supported on the EX4650-48Y switch are categorized in three tiers: Base, Premium, and Advanced.

  • Base software features include basic L2 switching, basic L3 routing, multicast, automation, programmability, ZTP, and basic monitoring. A Base software feature license comes with the purchase of the hardware and does not require any explicit license keys.
  • Premium software features include all Base license functionality, plus BGP, IS-IS, and EVPN-VXLAN to explicitly address the needs of enterprise customers. To enable these features, customers must purchase the EX4650-PFL license, generate unique license keys, and install them on the switch. The license is not portable across devices.
  • Advanced software features include all Premium license functionality plus MPLS to explicitly address the needs of enterprise interconnect and edge use cases. To enable these features, customers must purchase the EX4650-AFL license, generate unique license keys, and install them on the switch. The license is not portable across devices.

The Premium and Advanced software licenses are offered as perpetual licenses. Please see the Ordering Information section for license SKU descriptions.


EX4650 Campus Deployment Options

The EX4650 switch is designed primarily for the following use cases:

  • Virtual Chassis Technology: The EX4650 supports Juniper Networks unique Virtual Chassis technology, which enables up to four interconnected switches to operate as a single, logical device with a single IP address. Virtual Chassis technology allows enterprises to separate physical topology from logical groupings of endpoints, ensuring more efficient resource utilization. When deployed in a Virtual Chassis configuration, EX4650 switches can be connected using up to four of the 40GbE or 100GbE ports in link aggregation groups (LAGs) across 40GbE/1000GbE ports, providing an aggregate backplane capacity of up to 1.04 Tbps.

Figure 3: EX4650 as an enterprise distribution switch in a Virtual Chassis configuration

  • Campus Fabric Technology: Juniper Networks campus fabrics provide a single, standards-based Ethernet VPN-Virtual Extensible LAN (EVPN-VXLAN) solution that can be deployed in any campus, whether a two-tier network with a collapsed core distribution or a campus-wide system that involves multiple buildings with separate distribution and core layers. Juniper’s campus fabrics support the following validated architectures:
    • EVPN Multihoming (Collapsed Core/Distribution): A pair of interconnected EX4650 switches can be deployed to provide EVPN multihoming (ESI-LAG) in a collapsed core/distribution configuration. This eliminates the need for Spanning Tree Protocol (STP) across the campus network by providing multihoming capabilities from the access to the distribution layer, while distribution to core is an L3 IP fabric. ESI-LAG also supports horizontal scaling with more than two devices in the distribution layer and can extend EVPN to the core.
    • Campus Fabric or Core Distribution: A pair of interconnected EX4650 switches can provide EVPN L2 and L3 VXLAN gateway support. This eliminates the need for STP across the campus network by providing a multihoming capability from the access to the distribution layer, while distribution to the core is an L3 IP fabric using EVPN technology. The IP fabric can also extend to connect multiple enterprise buildings, while VXLAN allows stretching L2 across buildings. An IP Clos network between the distribution and the core layers can exist in two modes, both of which are supported by the EX4650:
      • Centrally routed bridging overlay: Integrated Routing and Bridging (IRB) interface placed at a central location in the fabric (in this case, a core device)
      • Edge routed bridging overlay: IRB interface placed at the edge of the fabric (in this case, a distribution device)
    • Campus Fabric IP Clos: The Campus Fabric IP Clos architecture pushes VXLAN Layer 2/3 gateway functionality to the access layer. In this architecture, EX4650 acts as an IP fabric distribution switch.

Figure 4: Campus fabrics architectures showing EX4650 in the distribution

Managing AI-Driven Campus Fabric with the Juniper Mist Cloud

Juniper Mist Wired Assurance brings cloud management and Mist AI to campus fabric. It sets a new standard moving away from traditional network management towards AI-driven operations, while delivering better experiences to connected devices. The Juniper Mist cloud streamlines deployment and management of campus fabric architectures by allowing:

  • Automated deployment and zero touch deployment
  • Anomaly detection
  • Root cause analysis

Figure 5: EVPN multihoming configuration via the Juniper Mist cloud

Enterprise On-Premises Server Connectivity: Data centers are demanding more high-speed, low-latency, storage- and I/O-converged networking solutions to maximize the performance of their physical servers, virtual servers, and storage. The EX4650 addresses these needs with low-latency, lossless, high-density 10GbE and 25GbE interfaces, as well as 100GbE uplinks to the core network. Furthermore, the EX4650 offers EVPN-VXLAN L2 and L3 gateway support, making it an ideal solution for overlay deployments in the enterprise on-premises data center.


Figure 6: EX4650 for enterprise on-premises server connectivity

The EX4650 also offers flexible airflow options, enabling them to support back-to-front and front-to-back cooling to ensure consistency with server designs for hot-aisle or cold-aisle deployments. Support for tri-speed 1GbE/10GbE/25GbE make the EX4650 ideal for enterprise server access; 48 ports of native 10GbE/25GbE for server connectivity and up to eight 40GbE or 100GbE ports for uplink connectivity provide very low oversubscription of 1.5:1 from access to aggregation. Each 40GbE port can be broken out into four 10GbE ports, providing additional options for server connectivity.

The EX4650 operates in both cut-through and store-and-forward modes, delivering sustained wire-speed switching with sub-microsecond latency and low jitter for any packet size (including jumbo frames) in both modes. With features such as EVPN multihoming (ESI-LAG) and MC-LAG, the EX4650 supports active/active server dual homing and can utilize full bisectional bandwidth from server to switch.


Features and Benefits

Wired Service Level Expectations

The Wired Assurance feature provides operational visibility into the wired experience with service-level expectations (SLEs) for EX Series Switches. Pre- and post-connection performance metrics help you monitor successful connects and switch health throughout the system, using Mist AI to measure and manage networks and simplify troubleshooting.



The EX4650 supports a number of network automation and plug-and-play features, including ZTP and event scripts, automatic rollback, and Python scripting.


Flexible Forwarding Table

The EX4650 includes a Unified Forwarding Table (UFT), which allows the hardware table to be divided into configurable partitions of L2 media access control (MAC), L3 host, and longest prefix match (LPM) tables. In a pure L2 environment, the EX4650 supports up to 288,000 MAC addresses; in L3 mode, the table can support up to 168,000 host entries; in LPM mode, the table can support up to 360,000 prefixes. Junos OS provides configurable options through a CLI to optimize the EX4650 for various deployment scenarios.


Intelligent Buffer Management

The EX4650 features a total of 32 MB of 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 EX4650 effectively absorbs traffic bursts while providing deterministic performance, significantly increasing performance over static allocation.



A broad set of MPLS features, including L3 VPN, IPv6 provider edge router (6PE), RSVP traffic engineering, and LDP, support standards-based network segmentation and virtualization, allowing the EX4650 to be deployed as a low-latency MPLS label-switching router (LSR).


VXLAN Overlays

The EX4650 is capable of both L2 and L3 VXLAN gateway services. Customers can deploy overlay networks to provide L2 adjacencies for applications over L3 fabrics. The overlay networks utilize VXLAN in the data plane and EVPN for programming the overlays, which can operate without a controller or be orchestrated with an SDN controller like OpenContrail.


Junos OS

Running Junos OS, which features the most advanced and robust routing capabilities in the industry, the EX4650 supports RIP and OSPF for both IPv4 and IPv6, as well as advanced routing capabilities such as IS-IS and BGP. With additional capabilities such as 64-way equal-cost multipath (ECMP) and BGP add path, the EX4650 is an ideal building block for deploying the most robust L3 underlay for SDN.



Many proprietary campus architectures are built on traditional L2 Ethernet-based architectures that address the desire to eliminate Spanning Tree Protocol (STP). With the increase of IoT devices in the enterprise, these networks will be expected to scale rapidly without adding complexity and resources. Some of these IoT devices, however, have limited networking capabilities and require L2 adjacency across buildings or campuses. To address this problem, traditional solutions extend VLANs across buildings and campuses using data plane flood-and-learn. Unfortunately, this solution is inefficient and difficult to manage. The increasing number of network endpoints, coupled with rapidly changing business needs, demands an open, standards-based network that is simple, scalable, and programmable across both the campus and the data center.

Modern enterprise networks need a campus architecture that decouples the overlay network from the underlay network with technologies such as VXLAN, which enables network administrators to create logical L2 networks across different L3 networks. The EX4650 satisfies these requirements by supporting EVPN-VXLAN L2 and L3 gateway capabilities, providing the following benefits:

  • Improved network and host mobility efficiency
    • Control plane MAC learning to reduce unknown-unicast flooding
    • Reduced Address Resolution Protocol (ARP) flooding due to MAC-to-IP binding in control plane
    • Multipath traffic over multiple core switches (VXLAN entropy)
    • Multipath traffic to active/active dual-homed access layer switches
  • Fast convergence
    • Faster reconvergence when linked to dual-homed access switches fail (aliasing)
    • Faster reconvergence when endpoints move
  • Scalability
    • Scalable BGP-based control plane
    • Seamless expansion of the core, distribution, and access layers as business needs grow
    • Seamless expansion of campuses as business needs grow
  • Flexibility
    • Easy integration with L3 and L2 VPNs
    • BGP-based control plane functionality that allows application of fine-grained policies
  • Nonproprietary
    • Standards-based protocols that support multivendor core, distribution, and access layers


Junos Telemetry Interface

The EX4650 supports Junos Telemetry Interface (JTI), a modern telemetry streaming tool designed for performance monitoring in enterprise networks. Streaming data to a performance management system enables network administrators to measure trends in link and node utilization, and troubleshoot such issues as network congestion in real time. JTI delivers the following features:

  • Application visibility and performance management by provisioning sensors to collect and stream data and analyze application and workload flow paths through the network
  • Capacity planning and optimization by proactively detecting hotspots and monitoring latency and microbursts
  • Troubleshooting and root cause analysis via high-frequency monitoring

EX4650 Switch Specifications


Switching Capacity

  • 2 Tbps (unidirectional)/4 Tbps (bidirectional)
  • Layer 2/Layer 3 throughput (maximum with 64 byte packets): 2976 Mpps (wire speed)



  • 23.7 lb (10.75 kg)


Dimensions (HxWxD)

  • 1.72 x 17.36 x 20.48 in (4.37 x 44.09 x 52.02 cm)
  • Switching mode: Cut-through and store-and-forward
  • Front-to-back (airflow out) for hot aisle deployment
  • Back-to-front (airflow in) for cold aisle deployment
  • Management and console port connections


Power Consumption

  • Max load 450 W; typical load 260 W; idle load 160 W


Interface Options

  • 1GbE SFP: 48 (48 copper 1GbE)
  • 10GbE SFP+: 48/80 (with breakout cable)
  • 25GbE SFP28: 48/80 (with breakout cable)
  • 40GbE QSFP+: 8
  • 100GbE QSFP28: 8
  • Each QSFP+ port can be configured as a 4 x 10GbE interface or as a 40 Gbps port
  • Each QSFP28 port can be configured as a 4 x 25GbE interface or as a 100 Gbps port
  • 1 USB 2.0 port
  • 1 RS-232 console port
  • 2 management ports: 2 x RJ-45 ports
  • Supported transceiver and direct attach cable (DAC)
  • SFP 1GbE optical and copper module
  • SFP+ 10GbE optical modules
  • SFP+ DAC cables: 1/3 m twinax copper and 1/3/5/7 m active twinax copper
  • SFP28 DAC cables: 1 m twinax copper
  • SFP28 optics: SR, LR
  • QSFP+ DAC cables: 1/3 m twinax copper
  • QSFP+ optics: SR4, LX4, ESR4, ER4, LR4
  • QSFP+ to SFP+ 10GbE direct attach breakout copper (1/3 m twinax copper cable)
  • QSFP28 to SFP28 25GbE direct attach breakout copper (1 m twinax copper cable)
  • QSFP28 optics: SR4, ER4, PSM4, CWDM4, LR4


Virtual Chassis

  • 100GbE and 40GbE as Virtual Chassis port
  • Virtual Chassis Routing Engine (RE) election
  • Virtual Chassis pre-provisioning (plug-and-play)
  • Auto-LAG formation of Virtual Chassis ports
  • FCoE transit across Virtual Chassis members
  • QoS on Virtual Chassis ports
  • Local designated forwarding
  • Graceful RE switchover (GRES)
  • Nonstop routing (NSR)
  • Nonstop bridging (NSB)
  • Monitor distributed aggregate interface
  • Control plane protection for virtual RE


Rack Installation Kit

  • Versatile four-post mounting options for 19-in server rack or datacom rack



  • Redundant (N+1) and hot-pluggable fan modules for front-to-back and back-to-front airflow
  • Redundant variable-speed fans to reduce power draw


Power Supply and Fan Modules

  • Dual redundant (1+1) and hot-pluggable 650 W AC/DC power supplies
  • 110-240 V single phase AC power
  • -44 to -72 V DC power supply
  • Redundant (4+1) and hot-pluggable fan modules for front-to-back or back-to-front airflow


Performance Scale (Unidimensional)

  • Layer 2
    • MAC addresses per system: 288,000
    • VLAN IDs: 4093
    • Number of link aggregation groups (LAGs): 80
    • Number of ports per LAG: 64
    • Multiple Spanning Tree Protocol (MSTP) instances: 64
    • VLAN Spanning Tree Protocol (VSTP) instances: 509
    • Jumbo frame: 9216 bytes
  • Firewall filters
    • Ingress filters: 1500
    • Egress filters: 512
  • Layer 3
    • IPv4 unicast prefixes: 360,000
    • IPv4 unicast routes: 208,000
    • IPv4 multicast routes: 104,000
    • ECMP paths: 64
    • IPv6 unicast prefixes: 170,000
    • IPv6 unicast routes: 104,000
    • IPv6 multicast routes: 52,000
    • ARP entries: 64,000
  • Traffic mirroring
    • Mirroring destination ports per switch: 4
    • Maximum number of mirroring sessions: 4
    • Mirroring destination VLANs per switch: 4


Software Features Supported

Layer 2 Features

  • STP—IEEE 802.1D (802.1D-2004)
  • Rapid Spanning Tree Protocol (RSTP) (IEEE 802.1w); MSTP (IEEE 802.1s)
  • Redundant Trunk Group (RTG)
  • Bridge protocol data unit (BPDU) protect
  • Loop protect
  • Root protect
  • RSTP and VSTP running concurrently
  • VLAN—IEEE 802.1Q VLAN trunking
  • The Routed VLAN Interface (RVI)
  • Port-based VLAN
  • Private VLAN (PVLAN)
  • VLAN translation
  • Static MAC address assignment for interface
  • Per VLAN MAC learning (limit)
  • MAC learning deactivate
  • Link Aggregation and Link Aggregation Control Protocol (LACP) (IEEE 802.3ad)


Link Aggregation

  • Multichassis link aggregation (MC-LAG)
  • EVPN Multihoming (ESI-LAG)
  • LAG load-sharing algorithm—bridged or routed (unicast or multicast) traffic:
    • IP: SIP, Dynamic Internet Protocol (DIP), TCP/UDP source port, TCP/UDP destination port
    • L2 and non-IP: MAC SA, MAC DA, Ethertype, VLAN ID, source port


Layer 3 Features (IPv4)

  • Static routing
  • Routing protocols (RIP, OSPF, IS-IS, BGP)
  • Virtual Router Redundancy Protocol (VRRP)
  • Bidirectional Forwarding Detection (BFD) protocol
  • Virtual router
  • Dynamic Host Configuration Protocol (DHCP) relay
  • Proxy Address Resolution Protocol (ARP)


Multicast Features

  • Internet Group Management Protocol (IGMP): v1, v2, v3
  • IGMP snooping: v1, v2, and v3 (L2 only)
  • IGMP Filter
  • Multicast Source Discovery Protocol (MSDP)


Security and Filters

  • Secure interface login and password
  • Ingress and egress filters: Allow and deny, port filters, VLAN filters, and routed filters, including management port filters
  • 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 deactivate, and autorecovery
  • Sticky MAC address
  • DHCP snooping


Quality of Service (QoS)

  • L2 and L3 QoS: Classification, rewrite, queuing
  • Rate limiting:
    • Ingress policing: Single-rate two-color policer, two-rate three-color policer
    • Egress policing: Policer, policer mark down action
    • Egress shaping: Per queue on each port
  • 10 hardware queues per port (8 unicast and 2 multicast)
  • Strict-priority queuing (PQ), shaped-deficit weighted round-robin (SDWRR), weighted random early detection (WRED), weighted tail drop
  • FCoE Initialization Protocol (FIP) snooping
  • 802.1p remarking
  • L2 classification criteria: Interface, MAC address, Ethertype, 802.1p, VLAN
  • Congestion avoidance capabilities: WRED
  • Trust IEEE 802.1p (ingress)
  • Remarking of bridged packets


Data Center Bridging (DCB)

  • Priority-based flow control (PFC)—IEEE 802.1Qbb
  • Data Center Bridging Capability Exchange (DCBX), DCBx FCoE, and iSCSI type, length, and value (TLVs)


High Availability

  • Bidirectional Forwarding Detection (BFD)
  • Uplink failure detection
  • Dynamic Load Balancing



  • Static label-switched paths (LSPs)
  • RSVP-based signaling of LSPs
  • LDP-based signaling of LSPs
  • LDP tunneling (LDP over RSVP)
  • MPLS class of service (CoS)
  • MPLS LSR support
  • IPv6 tunneling (6PE) (via IPv4 MPLS backbone)
  • IPv4 L3 VPN (RFC 2547, RFC 4364)


Server Virtualization Management and SDN-Related Protocols



Management and Analytics Platforms

  • Juniper Mist Wired Assurance for Campus
  • Junos Space® Network Director for Campus
  • Junos Space® Management


Device Management and Operations

  • Role-based CLI management and access
  • CLI via console, telnet, or SSH
  • Extended ping and traceroute
  • OpenConfig for Junos OS to support the YANG data models
  • Junos OS configuration rescue and rollback
  • Image rollback
  • SNMP v1/v2/v3
  • Junos XML management protocol
  • sFlow v5
  • Beacon LED for port and system
  • Zero Touch Provisioning (ZTP)
  • OpenStack Neutron Plug-in
  • Python
  • Junos OS event, commit, and OP scripts
  • Junos Telemetry Interface (JTI)


Traffic Mirroring

  • Port-based
  • LAG port
  • VLAN-based
  • Filter-based
  • Mirror to local
  • Mirror to remote destinations (L2 over VLAN)


Standards Compliance

IEEE Standard

  • IEEE standard
  • 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


Supported RFCs

  • RFC 768 UDP
  • RFC 783 Trivial File Transfer Protocol (TFTP)
  • RFC 791 IP
  • RFC 792 ICMP
  • RFC 793 TCP
  • RFC 826 ARP
  • RFC 854 Telnet client and server
  • RFC 894 IP over Ethernet
  • RFC 903 RARP
  • RFC 906 TFTP Bootstrap
  • RFC 951 1542 BootP
  • RFC 1058 Routing Information Protocol
  • RFC 1112 IGMP v1
  • RFC 1122 Host requirements
  • RFC 1142 OSI IS-IS Intra-domain Routing Protocol
  • RFC 1256 IPv4 ICMP Router Discovery (IRDP)
  • RFC 1492 TACACS+
  • RFC 1519 Classless Interdomain Routing (CIDR)
  • RFC 1587 OSPF not-so-stubby area (NSSA) Option
  • RFC 1591 Domain Name System (DNS)
  • RFC 1745 BGP4/IDRP for IP—OSPF Interaction
  • RFC 1772 Application of the Border Gateway Protocol in the Internet
  • RFC 1812 Requirements for IP Version 4 routers
  • RFC 1997 BGP Communities Attribute
  • RFC 2030 SNTP, Simple Network Time Protocol
  • RFC 2068 HTTP server
  • RFC 2131 BOOTP/DHCP relay agent and Dynamic Host
  • RFC 2138 RADIUS Authentication
  • RFC 2139 RADIUS Accounting
  • RFC 2154 OSPF w/Digital Signatures (Password, MD-5)
  • RFC 2236 IGMP v2
  • RFC 2267 Network ingress filtering
  • RFC 2328 OSPF v2 (edge mode)
  • RFC 2338 VRRP
  • RFC 2362 PIM-SM (edge mode)
  • RFC 2370 OSPF Opaque link-state advertisement (LSA) Option
  • RFC 2385 Protection of BGP Sessions via the TCP Message Digest 5 (MD5) Signature Option
  • RFC 2439 BGP Route Flap Damping
  • RFC 2453 RIP v2
  • RFC 2474 Definition of the Differentiated Services Field in the IPv4 and IPv6 Headers
  • RFC 2597 Assured Forwarding PHB (per-hop behavior) Group
  • RFC 2598 An Expedited Forwarding PHB
  • RFC 2697 A Single Rate Three Color Marker
  • RFC 2698 A Two Rate Three Color Marker
  • RFC 2796 BGP Route Reflection—An Alternative to Full Mesh IBGP
  • RFC 2918 Route Refresh Capability for BGP-4
  • RFC 3065 Autonomous System Confederations for BGP
  • RFC 3376 IGMP v3 (source-specific multicast include mode only)
  • RFC 3392 Capabilities Advertisement with BGP-4
  • RFC 3446, Anycast RP
  • RFC 3569 SSM
  • RFC 3618 MSDP
  • RFC 3623 Graceful OSPF Restart
  • RFC 4271 Border Gateway Protocol 4 (BGP-4)
  • RFC 4360 BGP Extended Communities Attribute
  • RFC 4456 BGP Route Reflection: An Alternative to Full Mesh Internal BGP (IBGP)
  • RFC 4486 Subcodes for BGP Cease Notification Message
  • RFC 4724 Graceful Restart Mechanism for BGP
  • RFC 4812 OSPF Restart Signaling
  • RFC 4893 BGP Support for Four-octet AS Number Space
  • RFC 5176 Dynamic Authorization Extensions to RADIUS
  • RFC 5396 Textual Representation of Autonomous System (AS) Numbers
  • RFC 5668 4-Octet AS Specific BGP Extended Community
  • RFC 5880 Bidirectional Forwarding Detection (BFD) Dynamic Host Configuration Protocol (DHCP) server


Supported MIBs

  • RFC 1155 SMI
  • RFC 1157 SNMPv1
  • RFC 1212, RFC 1213, RFC 1215 MIB-II, Ethernet-Like MIB and TRAPs
  • RFC 1850 OSPFv2 MIB
  • RFC 1901 Introduction to Community-based SNMPv2
  • RFC 2011 SNMPv2 for Internet protocol using SMIv2
  • RFC 2012 SNMPv2 for transmission control protocol using SMIv2
  • RFC 2013 SNMPv2 for user datagram protocol using SMIv2
  • RFC 2233, The Interfaces Group MIB Using SMIv2
  • RFC 2287 System Application Packages MIB
  • RFC 2570 Introduction to Version 3 of the Internet-standard Network Management Framework
  • RFC 2571 An Architecture for describing SNMP Management Frameworks (read-only access)
  • RFC 2572 Message Processing and Dispatching for the SNMP (read-only access)
  • RFC 2576 Coexistence between SNMP Version 1, Version 2, and Version 3
  • RFC 2578 SNMP Structure of Management Information MIB
  • RFC 2579 SNMP Textual Conventions for SMIv2
  • RFC 2580 Conformance Statements for SMIv2
  • RFC 2665 Ethernet-like interface MIB
  • RFC 2787 VRRP MIB
  • RFC 2790 Host Resources MIB
  • RFC 2819 RMON MIB
  • RFC 2863 Interface Group MIB
  • RFC 2932 IPv4 Multicast MIB
  • RFC 3410 Introduction and Applicability Statements for Internet Standard Management Framework
  • RFC 3411 An architecture for describing SNMP Management Frameworks
  • RFC 3412 Message Processing and Dispatching for the SNMP
  • RFC 3413 Simple Network Management Protocol (SNMP) (all MIBs are supported except the Proxy MIB)
  • RFC 3414 User-based Security Model (USM) for version 3 of SNMPv3
  • RFC 3415 View-based Access Control Model (VACM) for the SNMP
  • RFC 3416 Version 2 of the Protocol Operations for the SNMP
  • RFC 3417 Transport Mappings for the SNMP
  • RFC 3418 Management Information Base (MIB) for the SNMP
  • RFC 3584 Coexistence between Version 1, Version 2, and Version 3 of the Internet-standard Network Management Framework
  • RFC 3826 The Advanced Encryption Standard (AES) Cipher Algorithm in the SNMP User-based Security Model
  • RFC 4188 Definitions of Managed Objects for Bridges
  • RFC 4318 Definitions of Managed Objects for Bridges with Rapid Spanning Tree Protocol
  • RFC 4363b Q-Bridge VLAN MIB




  • CAN/CSA-C22.2 No. 60950-1 Information Technology Equipment - Safety
  • UL 60950-1 (2nd Edition) Information Technology Equipment – Safety
  • EN 60950-1: 2006/A2:2013 Information Technology Equipment – Safety
  • IEC 60950-1: 2005/A2:2013 Information Technology Equipment - Safety (All country deviations): CB Scheme
  • EN 60825-1 Safety of Laser Products - Part 1: Equipment classification and requirements
  • Federal Information Processing Standards (FIPS) 140-2 Support
  • Network Device Collaborative Protection Profile (NDcPP) version 2.1 Common Criteria



  • EN 300 386 V1.6.1 (2012-09) Electromagnetic compatibility and Radio spectrum Matters (ERM) Telecommunication network equipment
  • EN 300 386 V2.1.1 (2016-07) Telecommunication network equipment; EMC requirements; Harmonized Standard covering the essential requirements of the Directive 2014/30/EU
  • EN 55032:2012 (CISPR 32:2012) Electromagnetic compatibility of multimedia equipment—Emission requirements
  • EN 55024:2010 (CISPR 24:2010) Information technology equipment—Immunity characteristics—Limits and methods of measurement
  • IEC/EN 61000 Immunity Test
  • AS/NZS CISPR 32:2015 Australia/New Zealand Radiated and Conducted Emissions
  • FCC 47 CFR Part 15 USA Radiated and Conducted Emissions
  • ICES-003 Canada Radiated and Conducted Emissions
  • VCCI-CISPR 32:2016 Japanese Radiated and Conducted Emissions
  • BSMI CNS 13438 Taiwan Radiated and Conducted Emissions (at 10 Meters)
  • KN32/KN35 Korea Radiated Emission and Immunity Characteristics (at 10 Meters)
  • KN61000 Korea Immunity Test
  • TEC/SD/DD/EMC-221/05/OCT-16 India EMC standard


Environmental Compliance

  Restriction of Hazardous Substances (ROHS) 6/6

     China Restriction of Hazardous Substances (ROHS)

  Registration, Evaluation, Authorisation and Restriction of Chemicals (REACH)

  Waste Electronics and Electrical Equipment (WEEE)

     Recycled material

    80 Plus Silver PSU Efficiency



  • Common Language Equipment Identifier (CLEI) code


Environmental Ranges

  • Operating temperature: 32° to 104° F (0° to 40° C)
  • Storage temperature: -40° to 158° F (-40° to 70° C)
  • Operating altitude: Up to 6000 ft (1829 m)
  • Relative humidity operating: 5% to 90% (noncondensing)
  • Relative humidity nonoperating: 0% to 95% (noncondensing)


Juniper Networks Services and Support

Juniper Networks is the leader in performance-enabling services that are designed to accelerate, extend, and optimize your high-performance network. Our services allow you to maximize operational efficiency while reducing costs and minimizing risk, achieving a faster time to value for your network. Juniper Networks ensures operational excellence by optimizing the network to maintain required levels of performance, reliability, and availability.

For more information, please visit https://www.juniper.net/us/en/products.html.


Installation and Implementation Service

Juniper Professional Services offers an Enterprise Switching QuickStart program to ensure that your solution is operational and you have a complete understanding of areas such as configuration and ongoing operations. The QuickStart service provides an onsite consultant who works with your team to quickly develop the initial configuration and deployment of a small Juniper Networks data center switching environment. A knowledge transfer session, which is intended as a review of local implementation and configuration options, is also included, but is not intended as a substitute for formalized training.


Ordering Information

Product Description
Switch Hardware
EX4650-48Y-AFI 48 25GbE/10GbE/GbE SFP28/SFP+/SFP ports, 8 100GbE/40GbE QSFP28/QSFP+ ports, redundant fans, 2 AC power supplies, 2 power cords, 4-post rack mount kit, and back to front airflow
EX4650-48Y-AFO 48 25GbE/10GbE/GbE SFP28/SFP+/SFP ports, 8 100GbE/40GbE QSFP28/QSFP+ ports, redundant fans, 2 AC power supplies, 2 power cords, 4-post rack mount kit, and front to back airflow
EX4650-48Y-DC-AFI 48 25GbE/10GbE/GbE SFP28/SFP+/SFP ports, 8 100GbE/40GbE QSFP28/QSFP+ ports, redundant fans, 2 DC power supplies, 2 power cords, 4-post rack mount kit, and back to front airflow
EX4650-48Y-DC-AFO 48 25GbE/10GbE/GbE SFP28/SFP+/SFP ports, 8 100GbE/40GbE QSFP28/QSFP+ ports, redundant fans, 2 DC power supplies, 2 power cords, 4-post rack mount kit, and front to back airflow
JPSU-650W-AC-AFO Juniper 650 W AC power supply (port-side to FRU-side airflow)
JPSU-650W-AC-AFI Juniper 650 W AC power supply (FRU-side to port-side airflow)
JPSU-650W-DC-AFO Juniper 650 W DC power supply (port-side to FRU-side airflow)
JPSU-650W-DC-AFI Juniper 650 W DC power supply (FRU-side to port-side airflow)
QFX5110-FANAFI FANAFI fan model, back-to-front airflow
QFX5110-FANAFO FANAFO fan model, front-to-back airflow
EX-4PST-RMK 4 post rack mount kit
Optics and Transceivers
EX-SFP-1GE-T SFP 1000BASE-T copper transceiver module for up to 100 m transmission on Category 5
EX-SFP-1GE-SX SFP 1000BASE-SX GbE optics, 850 nm for up to 550 m transmission on multimode fiber
EX-SFP-1GE-LX SFP 1000BASE-LX GbE optics, 1310 nm for 10 km transmission on single-mode fiber
EX-SFP-10GE-USR SFP+ 10GbE ultra short reach optics, 850 nm for 10 m on OM1, 20 m on OM2, 100 m on OM3 multimode fiber
EX-SFP-10GE-SR SFP+ 10GBASE-SR 10GbE optics, 850 nm for up to 300 m transmission on multimode fiber
EX-SFP-10GE-LR SFP+ 10GBASE-LR 10GbE optics, 1310 nm for 10 km transmission on single-mode fiber
EX-SFP-10GE-ER SFP+ 10GBASE-ER 10GbE optics, 1550 nm for 40 km transmission on single-mode fiber
EX-SFP-10GE-ZR SFP+ 10GBASE-ZR 10GbE optics, 1550 nm for 80 km transmission on single-mode fiber
EX-SFP-DAC-1M SFP+ 10GbE Direct Attach Copper (twinax copper cable), 1 m
EX-SFP-DAC-3M SFP+ 10GbE Direct Attach Copper (twinax copper cable), 3 m
QFX-SFP-DAC-1MA SFP+ 10GbE Direct Attach Copper (active twinax copper cable), 1 m
QFX-SFP-DAC-3MA SFP+ 10GbE Direct Attach Copper (active twinax copper cable), 3 m
QFX-SFP-DAC-5MA SFP+ 10GbE Direct Attach Copper (active twinax copper cable), 5 m
QFX-SFP-DAC-7MA SFP+ 10GbE Direct Attach Copper (active twinax copper cable), 7 m
JNP-SFPP-10GE-T SFP+ transceiver provides 100/1000/10000BASE-TX throughput up to 30m over a copper connection via an RJ-45 connector
JNP-25G-SR SFP28 25GBASE-SR optics for up to 100 m transmission over serial multimode fiber-optic (MMF) OM4 fiber
JNP-25G-LR SFP28 25GBASE-SR optics for up to 10 km transmission over serial single-mode fiber-optic (SMF)
JNP-25G-DAC-1M 25GbE SFP28 to SFP28 copper cable, 1 m
JNP-25G-DAC-3M 25GbE SFP28 to SFP28 copper cable, 3 m
EX-QSFP-40G-LX4 40GbE QSFP+ LX4 optics
EX-QSFP-40G-SR4 QSFP+ 40GBASE-SR4 40GbE optics, 850 nm for up to 150 m transmission on multimode fiber
QFX-QSFP-40G-ESR4 QSFP+ 40GBASE-SR4 40GbE optics, 850 nm for up to 300 m transmission on multimode fiber
QSFPP-40GBASE-ER4 40GBASE-ER4 QSFP+ pluggable transceiver
QFX-QSFP-DAC-1M QSFP+ to QSFP+ Ethernet Direct Attach Copper (twinax copper cable), 1 m passive
QFX-QSFP-DAC-3M QSFP+ to QSFP+ Ethernet Direct Attach Copper (twinax copper cable), 3 m passive
QFX-QSFP-DACBO-1M QSFP+ to SFP+ 10GbE Direct Attach Breakout Copper (twinax copper cable), 1 m
QFX-QSFP-DACBO-3M QSFP+ to SFP+ 10GbE Direct Attach Breakout Copper (twinax copper cable), 3 m
EX-QSFP-100G-SR4 QSFP28 100GbE, SR4, 100 m
JNP-QSFP-100G-PSM4 QSFP28 100GBASE-PSM4 optics for up to 500 m transmission over parallel SMF
JNP-QSFP-100G-CWDM QSFP28 100GbE, CWDM4, 2 km
EX-QSFP-100G-LR4 QSFP28 100GbE, LR4, 10 km
JNP-100G-DAC-1M QSFP28 to QSFP28 Ethernet Direct Attach Copper (twinax copper cable) 1 m
JNP-100G-DAC-3M QSFP28 to QSFP28 Ethernet Direct Attach Copper (twinax copper cable) 3 m
JNP-100G-4X25G-1M QSFP28 to SFP+ 25GbE Direct Attach Breakout Copper (twinax copper cable) 1 m
JNP-100G-4X25G-3M QSFP28 to SFP+ 25 GbE Direct Attach Breakout Copper (twinax copper cable) 3 m
EX-SFP-GE80KCW1470 SFP, Gigabit Ethernet CWDM optics, 1470 nm for 80 km transmission on SMF
EX-SFP-GE80KCW1490 SFP, Gigabit Ethernet CWDM optics, 1490 nm for 80 km transmission on SMF
EX-SFP-GE80KCW1530 SFP, Gigabit Ethernet CWDM optics, 1530 nm for 80 km transmission on SMF
EX-SFP-GE80KCW1550 SFP, Gigabit Ethernet CWDM optics, 1550 nm for 80 km transmission on SMF
EX-SFP-GE80KCW1570 SFP, Gigabit Ethernet CWDM optics, 1570 nm for 80 km transmission on SMF
EX-SFP-GE80KCW1590 SFP, Gigabit Ethernet CWDM optics, 1590 nm for 80 km transmission on SMF
EX-SFP-GE80KCW1610 SFP, Gigabit Ethernet CWDM optics, 1610 nm for 80 km transmission on SMF
Software Feature Licenses
EX4650-PFL EX4650 Premium Feature License
EX4650-AFL EX4650 Advanced Feature License

About Juniper Networks

At Juniper Networks, we are dedicated to dramatically simplifying network operations and driving superior experiences for end users. Our solutions deliver industry-leading insight, automation, security and AI to drive real business results. We believe that powering connections will bring us closer together while empowering us all to solve the world’s greatest challenges of well-being, sustainability and equality.


1000640 - 008 - EN JULY 2023