• 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-7280SR2A-48YC6M-R | 7280R2 48-Port 25G Switch, AlgoMatch, 6x 100G QSFP28

DCS-7280SR2A-48YC6M-R

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Description

The Arista DCS-7280SR2A-48YC6M-R is a high-performance 1RU data center switch with 48 25GbE SFP28 ports and 6 100GbE QSFP28 uplinks, delivering 3.6 Tbps switching capacity and ultra-low latency of 3.8 microseconds. Featuring AlgoMatch technology for advanced packet classification, expanded memory, and rear-to-front airflow cooling, this switch is ideal for leaf-spine architectures, cloud fabrics, and latency-sensitive applications in modern data centers. Powered by Arista EOS, it offers full automation support, VXLAN/EVPN, MACsec security, and comprehensive telemetry for scalable, reliable network deployments.

Features

Layer 2 switching with MLAG, VXLAN/EVPN, LACP, MSTP, and 802.1Q VLAN support
- Layer 3 routing with BGP, OSPFv2/v3, IS-IS, ECMP, PIM-SM/SSM, HSRP, and VRRP
- AlgoMatch technology for enhanced ACL scale and programmable packet classification
- MACsec encryption on all ports for wire-rate security
- Deep packet buffers (32 MB shared buffer) for burst traffic handling
- Arista EOS with full programmability via eAPI, NETCONF, YANG, OpenConfig, and Python
- Zero Touch Provisioning (ZTP) for automated deployment
- CloudVision integration for centralized management and analytics
- Streaming telemetry with LANZ (Latency Analyzer) for congestion detection
- 128-way ECMP for scalable leaf-spine fabric designs
- Secure boot and role-based access control (RBAC)
- FlexRoute engine for internet-scale routing and large routing tables
- Wire-speed performance on all ports with non-blocking architecture
- Hot-swappable power and fan modules for high availability
- 1+1 redundant power supplies and N+1 fan redundancy

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

48 x 25GbE SFP28 ports (1/10/25G configurable in groups of 4)
- 6 x 100GbE QSFP28 ports (40/100G, with 4x25G and 4x10G breakout support)
- Switching capacity: 3.6 Tbps full duplex
- Forwarding rate: 1.67 billion packets per second
- Latency: 3.8 microseconds
- MAC address table: 768,000 entries
- System memory: 8 GB (expandable to 32 GB)
- Flash storage: 4 GB
- CPU: Quad-core x86 processor
- AlgoMatch technology for advanced ACL and policy-based forwarding
- Rear-to-front airflow (-R model)
- Redundant hot-swappable AC power supplies (2x)
- Hot-swappable fan modules (4x FAN-7000H-R)
- Dimensions: 1.75" H x 17.5" W x 16" D (1RU)
- Weight: 17.8 lbs (8.1 kg)
- Typical power consumption: 263W; maximum: 381W
- Management: CLI, REST API, NETCONF, YANG, gNMI, Python scripting
- Compliance: NEBS Level 3, ETSI, RoHS

FAQs

Q: What is AlgoMatch technology in the DCS-7280SR2A-48YC6M-R?
A: AlgoMatch is Arista's programmable packet classification engine that combines advanced algorithms with optimized memory to deliver higher ACL scale, policy-based forwarding, and custom telemetry capabilities beyond standard merchant silicon. It enables more flexible and efficient network policies in large-scale deployments.

Q: What deployment scenarios is the DCS-7280SR2A-48YC6M-R best suited for?
A: This switch is ideal for leaf-spine architectures in cloud and enterprise data centers, providing high-density 25G server connectivity with 100G uplinks to the spine. It excels in latency-sensitive applications like high-frequency trading, real-time analytics, virtualization environments, and hyperconverged infrastructure.

Q: What does the -R suffix indicate in the model number?
A: The -R suffix indicates rear-to-front airflow, meaning air flows from the fan side (rear) to the switch port side (front). This is designed for hot-aisle/cold-aisle data center deployments where the rear of the rack faces the hot aisle.

Q: Does the DCS-7280SR2A-48YC6M-R support VXLAN and overlay networks?
A: Yes, the switch fully supports VXLAN/EVPN for network virtualization and overlay fabrics. It also supports MLAG, BGP, OSPFv2/v3, IS-IS, ECMP, and other protocols required for modern leaf-spine and IP fabric deployments.

Q: What transceivers are compatible with this switch?
A: The switch supports a wide range of optics including 25G SFP28 SR, LR, and DAC cables for server connectivity, and 100G QSFP28 SR4, LR4, CWDM4, and DAC for uplinks. QSFP28 to 4x SFP28 breakout cables are also supported for flexible 25G fan-out connections. Both Arista-branded and compatible third-party optics can be used.

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