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    15+ Years of Proven Excellence
    Delivering reliable IT hardware solutions since 2009.

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    Juniper EX4650-48Y-AFO Switch

    Part Number: EX4650-48Y-AFO

    Description: EX4650 48x25G+8x100G 1U AC port side intake and PSU side exhaust, front to back airflow

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    15+ Years of Proven Excellence
    Delivering reliable IT hardware solutions since 2009.

    Same-Day Shipping
    On all on-hand orders placed before 2 pm CST.

    Limited Lifetime Warranty
    You’ll find warranty coverage on the majority of our hardware.*
    Terms & Conditions*

    Key Features of the Juniper EX4650 Switch

    The Juniper EX4650 48Y-AFO is an enterprise-class, fixed-configuration Ethernet switch designed to support advanced campus environments and service provider aggregation deployments. Built on the robust network operating system Junos OS, the EX4650 48Y-AFO delivers exceptional performance, scalability, and availability for modern enterprise networks.

    Versatile Deployment Options

    The Juniper EX4650 48Y-AFO excels in various deployment scenarios, including:

    • Campus distribution deployments that connect multiple enterprise buildings
    • Enterprise server access in both the data center and campus environments
    • IP Clos network architectures that enhance network efficiency
    • Cold aisle deployment management in data centers

    Advanced Networking Capabilities

    The EX4650 48Y AFO offers significant advantages over traditional solutions with limited networking capabilities:

    • Virtual Chassis technology allows you to manage multiple EX4650 48Y-AFO switches as a single logical device
    • Deploy overlay networks using Virtual Extensible LAN (VXLAN) technology for greater scalability
    • Intelligent buffer management ensures optimal performance during congestion
    • Advanced routing capabilities including support for Border Gateway Protocol (BGP)
    • Bidirectional Forwarding Detection (BFD) for fast path failure detection
    • VLAN congestion avoidance capabilities to maintain network performance

    Robust Security Features

    The Juniper EX4650-48Y-AFO incorporates a secure architecture through Junos OS, with features that:

    • Filters secure interface login attempts to prevent unauthorized access
    • Run process modules independently in their own protected memory space
    • Provide error-free network configurations through commit and rollback capabilities
    • Support secure routers deployment at network boundaries

    Simplified Management

    The EX4650-48Y-AFO enables network administrators to:

    • Leverage the Internet Standard Management Framework for consistent configuration
    • Utilize on-box problem detection for quick issue resolution
    • Support network automation through programmable interfaces
    • Manage the entire Juniper infrastructure from a single interface

    Specifications of EX4650 Switch

    Hardware Specifications

    Component Specification
    Form Factor 1U
    Dimensions (W x H x D) 17.26 x 1.72 x 20.27 inches (43.84 x 4.37 x 51.5 cm)
    Switching Capacity Hardware switching capacity of 1.76 Tbps
    Forwarding Rate 1,300 Mpps
    Weight 23.15 lb (10.5 kg)
    Power Supplies 2x 650W AC DC power supply redundant options
    Cooling Fan modules dual redundant front-to-back airflow
    System Memory 16 GB DDR4
    SSD Storage 128 GB
    Port Density 48 25-GbE SFP28 ports, 8 100-GbE QSFP28 ports
    Unified Forwarding Table 104K MAC addresses, 208K host routes

    Software Features

    The Juniper EX4650-48Y-AFO comes with a base software feature license that includes:

    Layer 2 Features

    • Link Aggregation Control Protocol (LACP)
    • Spanning Tree Protocol (STP), Rapid Spanning Tree Protocol (RSTP)
    • Support to eliminate Spanning Tree Protocol with MC-LAG
    • Bridge Protocol Data Unit (BPDU) guard
    • Priority-based Flow Control

    Layer 3 Features

    • Dynamic Host Configuration Protocol (DHCP) relay
    • Virtual Router Redundancy Protocol (VRRP)
    • Intra-Domain Routing Protocol support
    • Control plane multipath traffic management
    • Dynamic Internet Protocol address management

    Advanced Features

    The EX4650-48Y-AFO supports premium software features including:

    • Server virtualization management
    • Centrally Routed Bridging overlay
    • Edge Routed Bridging overlay
    • EVPN-VXLAN for overlay networks utilize VXLAN
    • Simple Network Time Protocol (SNTP)
    • Transmission Control Protocol (TCP) optimization
    • User Datagram Protocol (UDP) forwarding

    Environmental Specifications

    Specification Operating Range
    Temperature 32° to 104° F (0° to 40° C)
    Humidity 5% to 90% (noncondensing)
    Maximum Altitude 10,000 ft (3,048 m)
    MTBF 160,000 hours

    FAQs about the Juniper EX4650 Switch

    What makes the Juniper EX4650-48Y-AFO suitable for advanced campus environments?

    The Juniper EX4650-48Y-AFO is specifically designed to support advanced campus environments with its high-density 25GbE interfaces and 100GbE uplinks. Unlike proprietary campus architectures, the EX4650-48Y-AFO uses open standards to interconnect multiple campuses and connect multiple enterprise buildings while providing the performance needed for bandwidth-intensive applications. Its Virtual Chassis technology allows you to manage multiple core switches as a single logical device, simplifying campus network operations.

    How does the EX4650-48Y-AFO support modern network operations?

    The Juniper EX4650-48Y-AFO delivers improved network performance through its advanced software features that support today’s network operations. The switch runs on Junos OS, a robust network operating system with a consistent user interface across all Juniper platforms. This enables network administrators to manage networked devices more efficiently and deploy error-free network configurations. Additionally, the EX4650-48Y-AFO supports network automation capabilities that significantly reduce manual configuration tasks.

    Can the EX4650-48Y-AFO be used in data center deployments?

    Yes, the Juniper EX4650-48Y-AFO excels in both the data center and campus environments. Its design supports core network functions with robust routing capabilities that are essential for enterprise server access. The switch features intelligent buffer management and hardware switching capacity needed for data center workloads. Additionally, the EX4650-48Y-AFO can deploy overlay networks using VXLAN, making it ideal for modern data center architectures that require connectivity between network endpoints across different zones.

    What protocols does the EX4650-48Y-AFO support?

    The Juniper EX4650-48Y-AFO supports a comprehensive suite of protocols including:

    • Border Gateway Protocol (BGP) for external routing
    • Dynamic Host Configuration Protocol (DHCP) for IP address management
    • Link Aggregation Control Protocol (LACP) for bundling physical connections
    • Spanning Tree Protocol (STP) and Rapid Spanning Tree Protocol (RSTP) for loop prevention
    • Virtual Router Redundancy Protocol (VRRP) for default gateway redundancy
    • Internet Protocol (IP) routing protocols including OSPF and IS-IS
    • Bidirectional Forwarding Detection (BFD) for fast failure detection
    • Transmission Control Protocol (TCP) and User Datagram Protocol (UDP)
    • Simple Network Time Protocol (SNTP) for time synchronization

    How does the EX4650-48Y-AFO compare to the EX4650-48Y?

    The Juniper EX4650-48Y and EX4650-48Y-AFO are similar in their core capabilities, but the EX4650-48Y-AFO includes the AFO (airflow out) designation, indicating that the cooling airflow direction is from front to back. This is particularly important for cold aisle deployment management in data centers. Both models offer the same port density and software features supported by Junos OS, but choosing the correct airflow direction is critical for proper thermal management in your specific installation environment.

    What security features are available on the EX4650-48Y-AFO?

    The Juniper EX4650-48Y-AFO includes robust security features based on the secure architecture Junos OS provides. These include:

    • Filters secure interface login to prevent unauthorized access
    • Role-based access control for administrative functions
    • Support for RADIUS, TACACS+, and LDAP authentication
    • Control plane DoS protection
    • MAC limiting and storm control
    • Process modules running independently in their own protected memory space
    • Secure boot to verify software integrity
    • Integration with Juniper’s secure routers for comprehensive network protection

    Does the EX4650-48Y-AFO support SNMP management?

    Yes, the Juniper EX4650-48Y-AFO fully supports the Internet Standard Management Framework for SNMP-based management. The switch includes capabilities for describing SNMP management frameworks and can be integrated into existing management systems. This allows network administrators to monitor and manage the EX4650-48Y-AFO alongside other devices in their entire Juniper infrastructure or multi-vendor environments.

    What virtualization technologies does the EX4650-48Y-AFO support?

    The Juniper EX4650-48Y-AFO supports several virtualization technologies that enable greater network efficiency:

    • Server virtualization management through VXLAN tunnels
    • EVPN-VXLAN for overlay networks utilize VXLAN
    • Centrally routed bridging overlay networks
    • Edge routed bridging overlay functionality
    • Virtual Extensible LAN (VXLAN) for layer 2 connectivity across layer 3 networks
    • Unlike traditional solutions extend VLANs across the network, the EX4650-48Y-AFO provides more scalable virtualized networking

    How reliable is the EX4650-48Y-AFO for enterprise deployments?

    The Juniper EX4650-48Y-AFO is built for high reliability in enterprise networks with features such as:

    • Redundant, hot-swappable power supplies
    • Fan modules dual redundant design
    • Bidirectional Forwarding Detection for sub-second failure detection
    • On-box problem detection and recovery mechanisms
    • Junos OS commitment to error-free network configurations through its transaction-based configuration model
    • Hardware designed by Juniper Networks with proven reliability in mission-critical environments
    • Process modules running independently to prevent system-wide failures

    What licensing options are available for the EX4650-48Y-AFO?

    The Juniper EX4650-48Y-AFO comes with a base software feature license that includes essential Layer 2 and Layer 3 functionality. For advanced capabilities, premium software features licenses are available that unlock additional functionality such as EVPN, VXLAN, advanced routing protocols, and automation features. These software licenses allow organizations to pay for only the features they need while having the flexibility to upgrade as their network operations requirements evolve.

    At Network Republic, our end-user accounts are covered by a 1-Year Warranty on all hardware—whether New, New Open Box, New Pull, Refurbished, or Refurbished by Manufacturer —from the date of delivery. This warranty covers hardware defects under normal use and allows for repair, replacement, or in-house credit at our discretion.

    For resellers and wholesale purchases, we offer a 30-Day Warranty limited strictly to functional issues or defects upon arrival, including dead-on-arrival (DOA) items; it does not apply to problems arising after prolonged use. Resellers are responsible for inspecting and testing products within the 30-day window. This warranty excludes accidental damage, misuse, cosmetic wear, third-party modifications, and software-related issues unrelated to hardware failure. Check out our full warranty policy here.

    Software licenses are not covered under the standard return and warranty policies and need to be activated on the hardware within 7 days of receipt. Any issues need to be reported immediately, within 10 days, so we can issue an exchange. Under no circumstances will refunds be issued for software licenses.

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