Juniper Networks EX4650-48Y-8C Ethernet Switch

The Juniper Networks EX4650-48Y-8C is a purpose-built aggregation switch delivering 48 ports of 25GbE and 8 ports of 100GbE in a compact 1U form factor, designed to address the extreme bandwidth and low-latency demands of AI and machine learning workloads. The platform is built around a high-throughput switching ASIC that delivers a non-blocking 3.2 Tbps switching capacity, enabling it to handle simultaneous east-west and north-south traffic flows typical in GPU cluster interconnect topologies without introducing bottlenecks at the rack aggregation tier. The switch natively supports EVPN-VXLAN overlay fabrics, allowing seamless integration into modern multi-tenant data center architectures where workload mobility, network segmentation, and automated provisioning are critical operational requirements.

Architecturally, the EX4650-48Y-8C is optimized for spine-leaf deployments where leaf switches must aggregate dense GPU or accelerator server racks before uplifting traffic to spine layers via 100GbE uplinks. The eight 100GbE QSFP28 uplink ports provide ample bandwidth headroom for connecting to spine switches, while the 48 SFP28 downlink ports accommodate high-density server connections at 10GbE or 25GbE line rates. The platform supports advanced features including ECMP load balancing, BFD for rapid failure detection, and Layer 3 routing protocols including BGP, OSPF, and IS-IS, making it equally capable as a Layer 2 or Layer 3 aggregation node within a disaggregated fabric.

Operationally, the EX4650-48Y-8C runs Juniper's Junos OS, providing a consistent operational model across the entire Juniper switching portfolio. Junos supports zero-touch provisioning (ZTP), Juniper's Apstra intent-based networking integration, and streaming telemetry via gRPC and OpenConfig, giving network operations teams deep visibility into fabric health, traffic utilization, and anomaly detection in real time. The switch's redundant power supply and hot-swappable fan tray design ensure high availability, which is essential for AI training cluster environments where unplanned downtime directly impacts GPU utilization and compute job continuity.

Ideal for

• AI and ML training cluster rack aggregation connecting high-density GPU servers at 25GbE with 100GbE uplift to spine switches in a non-blocking leaf-spine fabric
• High-performance computing (HPC) environments requiring low-latency, high-bandwidth east-west traffic handling between compute nodes at scale
• Multi-tenant data center operators deploying EVPN-VXLAN overlays for workload isolation, virtual network segmentation, and tenant mobility across physical infrastructure
• Hyperscale enterprise data centers building disaggregated spine-leaf architectures powered by BGP EVPN control planes with automated provisioning via Juniper Apstra
• Colocation facilities aggregating rack-level server traffic from multiple customers with strict QoS policies, traffic shaping, and Layer 3 VPN separation requirements
• Cloud-native infrastructure deployments integrating streaming telemetry and OpenConfig-based monitoring pipelines for real-time fabric observability and proactive capacity management

Technical specifications

Available from Omnixon Global. Submit an RFQ and our team will confirm configuration and availability for your order.