QFX5241-64QD-DO

Description

Product Overview

The Juniper QFX5241-64QD-DO is a high-performance, fixed-configuration 2U switch from the QFX5200 line, optimized for data center spine and leaf deployments. Featuring 64 x 400GbE QSFP-DD ports, it delivers massive bandwidth for cloud-scale networking with support for EVPN-VXLAN fabrics, IP fabrics, and MC-LAG.

Architecture & Silicon

Built on Juniper Express silicon with VoQ (Virtual Output Queue) architecture for low latency and high buffer utilization. Supports high-density 400GbE port breakout to 4x100GbE or 2x200GbE per port. Orthogonal design enables full line-rate performance without oversubscription.

Performance Metrics

Switching Capacity: 51.2 Tbps (full duplex)
Packet Forwarding Rate: 7600 Mpps
Packet Buffers: 32 MB shared memory, ideal for microburst handling and congestion management
Latency: <660 ns port-to-port (@ 400GbE, all frame sizes)

Scalability

MAC Addresses: 288K
IPv4/IPv6 FIB (LPM): 128K / 128K
IPv4 Host: 240K
ACLs: 32K firewall filters (10K tuples)
Supports massive route scale for EVPN-VXLAN overlays and large L3 domains.

Software & Solutions

Powered by Junos OS with EVPN-VXLAN, IP Fabric, and MC-LAG for resilient fabrics. Automation via NETCONF/YANG, on-box Python scripting, Zero Touch Provisioning (ZTP). Telemetry with Junos Telemetry Interface (JTI) for real-time gRPC streaming analytics.

Ordering Information