• Gray metal arista dcs-7280sr2-48yc6-f network switch with 48 black 25g ports and blue indicator lights on front panel
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Arista

Arista DCS-7280SR2-48YC6-M-R | 7280R2 48-Port 25G Switch, 6x 100G QSFP28, 3.6 Tbps

DCS-7280SR2-48YC6-M-R

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Description

The Arista DCS-7280SR2-48YC6-M-R is a high-performance data center switch featuring 48x 25GbE SFP28 ports and 6x 100GbE QSFP28 uplinks with 3.6 Tbps switching capacity. Part of the 7280R2 Series, this Layer 3 managed switch includes expanded memory with SSD storage, rear-to-front airflow, and delivers ultra-low latency for demanding leaf-spine, cloud, and enterprise data center deployments. Powered by Arista EOS, it offers advanced automation, VXLAN network virtualization, and comprehensive telemetry capabilities for scalable, deterministic network performance.

Features

Layer 2 switching: 802.1Q VLAN tagging (4096 VLANs), 802.1w Rapid Spanning Tree, 802.1D STP, Per-VLAN Spanning Tree, Multi-Chassis Link Aggregation (MLAG)
- Layer 3 routing: Static routing, OSPF, BGP, Equal-Cost Multipath (ECMP), Unicast Reverse Path Forwarding, 1152 link aggregation groups
- VXLAN EVPN support for scalable network virtualization and overlay networks
- Advanced telemetry: Accelerated sFlow (up to 1.6 Mpps), LANZ (Latency Analyzer) for microburst detection, DANZ (Precision Data Analyzer), VMTracer for VXLAN-aware VM traffic tracking
- Deep packet buffers (8 GB) for lossless forwarding and congestion management
- Jumbo frame support: 9,216 bytes
- Quality of Service (QoS): Priority-based flow control (PFC), scheduling, and traffic shaping
- Security: Control plane protection, ACL deny logging, MAC security, TACACS+, RADIUS, atomic ACL updates with hitless restart
- High availability: Redundant hot-swappable power supplies (1+1) and fans (N+1), stateful fault containment and repair
- Precision timing: IEEE 1588v2 PTP support for time-sensitive applications
- Management: CLI, Web GUI, SNMP, gRPC, JSON-RPC, REST API, native KVM/QEMU support
- Automation and orchestration: Full programmability via Python scripting, Ansible, Puppet, Terraform integration
- Multicast: IGMP, PIM, Multicast source discovery protocol

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

48x 25GbE SFP28 ports (support 1/10/25GbE)
- 6x 100GbE QSFP28 ports (support 40/100GbE)
- Switching capacity: 3.6 Tbps non-blocking
- Forwarding rate: 1.67 billion packets per second (Bpps)
- Latency: 3.8 microseconds
- System memory: 8 GB DRAM (expandable to 32 GB)
- Packet buffer: 8 GB
- Flash storage: 4 GB with SSD option
- Processor: Quad-core x86 CPU
- MAC address table: 768,000 entries
- Management: 1x 100/1000 Ethernet, 1x RS-232 serial (RJ-45), 2x USB ports
- Airflow: Rear-to-front (back-to-front)
- Power supply: 2x hot-swappable AC PSU (1+1 redundant), 747W output, typical draw 425W, max 647W
- Cooling: 4x hot-swappable fans (N+1 redundant)
- Form factor: 1U rack-mountable
- Dimensions: 19 x 1.75 x 20.6 inches (48.3 x 4.4 x 52.3 cm)
- Weight: 22.9 lbs (10.4 kg)
- Operating temperature: 0 to 40°C
- Operating altitude: 0 to 10,000 feet
- Compliance: NEBS Level 3, ETSI, RoHS

FAQs

Q: What is the difference between the DCS-7280SR2-48YC6-M-R and the standard DCS-7280SR2-48YC6-R?
A: The M-R variant includes expanded memory (up to 32 GB system memory) and an integrated SSD for enhanced storage and performance. Both models feature rear-to-front airflow and dual AC power supplies, but the M-R is designed for more demanding environments requiring additional memory and storage capacity.

Q: What deployment scenarios are ideal for this switch?
A: This switch is purpose-built for high-performance data center environments as a leaf or spine switch in modern fabric architectures. It excels in cloud provider networks, hyperscale data centers, financial services requiring ultra-low latency, telecommunications infrastructure, and enterprise data center interconnects with VXLAN EVPN overlay networks.

Q: Does the switch support VXLAN and network virtualization?
A: Yes, the DCS-7280SR2-48YC6-M-R fully supports VXLAN EVPN for scalable Layer 2 and Layer 3 overlay networks, enabling multi-tenant segmentation and workload mobility. It also features robust ECMP routing for load balancing and fault tolerance across leaf-spine fabrics, simplifying network expansion in modern cloud architectures.

Q: What optics and cabling options are compatible with this switch?
A: The switch supports a broad optics portfolio including 25GBASE-SR and LR optics for 25GbE links, 100GBASE-SR4 and LR4 for 100GbE connections, Direct Attach Copper (DAC), and Active Optical Cables (AOC). All ports are standards-compliant with IEEE 802.3 and SFF-8431, ensuring interoperability in multi-vendor environments.

Q: What software and management capabilities does Arista EOS provide?
A: Arista EOS delivers comprehensive programmability via Python, eAPI, and automation frameworks like Ansible, Puppet, and Terraform. The switch includes advanced telemetry tools such as sFlow for traffic analysis, LANZ for real-time congestion detection, DANZ for flow visibility, and supports streaming telemetry via gRPC. It can also run containerized applications directly on EOS for custom microservices integration.

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