• Gray metal arista dcs 7050px4 32s f 400g switch with multiple ports on the front panel in a server rack
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Arista

Arista DCS-7050PX4-32S-R | 7050X4 32-Port 400G Switch, 2x 10G SFP+

DCS-7050PX4-32S-R

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Description

The Arista DCS-7050PX4-32S-R is a high-performance 1RU data center switch delivering 25.6 Tbps of full-duplex throughput with ultra-low 900ns latency. Featuring 32 OSFP 400GbE ports plus 2 SFP+ management ports, it supports flexible multi-speed breakout from 400G down to 10G for seamless network migration. Built on Arista's 7050X4 platform with 132MB shared packet buffer and Dynamic Buffer Allocation, this switch is optimized for leaf-spine architectures, AI/ML training clusters, and high-density data center deployments requiring maximum bandwidth efficiency.

Features

25.6 Tbps full-duplex switching capacity with non-blocking architecture
- Ultra-low 900 nanoseconds cut-through latency for performance-critical applications
- 132 MB shared packet buffer with Dynamic Buffer Allocation for burst absorption
- Flexible port breakout: 400G/200G/100G/50G/40G/25G/10G per OSFP port
- 128-way ECMP with Dynamic Load Balancing (DLB) and Unequal Cost Multi-Pathing
- 64-way MLAG for active/active multi-chassis link aggregation
- Lossless Ethernet: RoCEv2, Priority Flow Control (PFC), ECN, DCBX/ETS
- VXLAN hardware offload with EVPN control plane for network virtualization
- AI Analyzer with 100μs granularity for ECMP monitoring in ML workloads
- Advanced Layer 2/3 features: BGP, OSPF, IS-IS, VRRP, STP, RSTP, MSTP
- Comprehensive ACLs: IPv4/IPv6 ingress/egress at L2/L3/L4
- Quality of Service: 8 egress queues, WRED, strict priority, WRR scheduling
- Zero Touch Provisioning (ZTP) for automated deployment
- CloudVision Portal integration for centralized management and telemetry
- Arista EOS with eAPI for RESTful programmability and automation
- Hot-swappable redundant power supplies and fan modules
- Rear-to-front airflow optimized for cold-aisle data center designs
- Real-time telemetry streaming for network visibility and troubleshooting
- Supports loop-free and fast convergence with MLAG and VXLAN
- Control Plane Protection (CoPP) with rate-limiting for CPU security

Warranty

All products sold by XS Network Tech include a 12-month warranty on both new and used items. Our in-house technical team thoroughly tests used hardware prior to sale to ensure enterprise-grade reliability.

All technical data should be verified on the manufacturer data sheets.

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Technical Specifications

FAQs

Technical Specifications

Port Configuration: 32x 400GbE OSFP ports, 2x 10GbE SFP+ ports
- Switching Capacity: 25.6 Tbps full-duplex (12.8 Tbps bidirectional)
- Forwarding Rate: Wire-speed Layer 2/3 forwarding at all port speeds
- Latency: 900 nanoseconds cut-through latency
- Packet Buffer: 132 MB shared buffer with Dynamic Buffer Allocation
- Port Speeds: 400G, 200G, 100G, 50G, 40G, 25G, 10GbE per port via breakout
- Maximum Breakout: Up to 128x 100GbE, 128x 25GbE, or 64x 200GbE
- Form Factor: 1RU rackmount, rear-to-front (reverse) airflow
- Power Supply: Dual redundant hot-swappable PSUs, 353W typical / 880W maximum
- Operating System: Arista EOS (Extensible Operating System), Linux-based
- Management: CLI, Web GUI, eAPI, CloudVision, SNMP, ZTP, eAPI REST API
- Memory & Flash: System memory and storage optimized for EOS operation
- Cooling: Hot-swappable N+1 redundant fan modules, rear-to-front airflow
- Dimensions: 1RU height, standard 19-inch rack width
- Certifications: Safety and EMC compliant, industry-standard certifications

FAQs

Q: What is the difference between the DCS-7050PX4-32S-R and DCS-7050PX4-32S-F?
A: The -R suffix indicates rear-to-front (reverse) airflow, while the -F model has front-to-rear airflow. Both are electrically identical with the same performance and features. Choose based on your data center hot/cold aisle configuration requirements.

Q: Can the 400G OSFP ports be used at lower speeds?
A: Yes, each OSFP port supports flexible speeds of 400G, 200G, 100G, 50G, 40G, 25G, and 10GbE. You can use breakout cables to split each 400G port into multiple lower-speed interfaces, enabling up to 128x 100GbE or 128x 25GbE ports for maximum flexibility.

Q: Is this switch suitable for AI/ML and high-performance computing environments?
A: Absolutely. The DCS-7050PX4-32S-R features lossless Ethernet support via RoCEv2 (RDMA over Converged Ethernet), Priority Flow Control, ECN, and Dynamic Buffer Allocation. It's optimized for GPU training fabrics with AI Analyzer for real-time ECMP monitoring and Dynamic Load Balancing.

Q: What routing and switching features does the 7050PX4-32S support?
A: The switch supports advanced Layer 2/3 features including VXLAN, EVPN, 128-way ECMP with Dynamic Load Balancing, 64-way MLAG for redundancy, BGP, OSPF, static routing, ACLs, QoS, and comprehensive security features. It runs Arista EOS for full programmability and automation.

Q: Does this switch require any licensing for full functionality?
A: Arista switches typically include core features in the base software. CloudVision Portal integration and certain advanced analytics features may require CloudVision subscriptions. Contact your Arista representative or authorized reseller for current licensing details specific to your deployment needs.

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