Arista 7280R3 Series Switch

Brand: Arista | Category: Network Switches

SKU: ARISTA-7280R3-001 | Part #: ARISTA-7280R3-001 | MPN: ARISTA-7280R3-001

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Arista's 7280R3 series represents a purposeful evolution in fixed-configuration spine and leaf switching for data centres where latency is not a performance metric but a business constraint. The forwarding architecture on this platform uses cut-through switching with sub-microsecond latency characteristics, a critical distinction for operators building low-latency spine-leaf fabrics, high-frequency trading environments, and AI cluster interconnects where even microseconds of added delay compound into measurable financial or computational cost. Unlike store-and-forward designs that buffer entire frames before forwarding, the 7280R3's architecture processes packets at line rate with minimal buffering delay, making it the preferred choice for network architects tasked with meeting latency SLAs in next-generation data centre topologies.

The ARISTA-7280R3-001 configuration delivers 19.2 Tbps of switching capacity and 5.7 billion packets per second of forwarding throughput, paired with a flexible port lineup that spans high-density 100G QSFP28 and 400G QSFP-DD interfaces with full breakout support. This port density means a single chassis can consolidate what previously required multiple physical switches, reducing physical footprint in rack space and simplifying power distribution in capacity-constrained data centre environments. The Arista 7280R3 supports wire-speed performance across 1G, 10G, 25G, 40G, 100G, and 400G speeds, allowing operators to mix legacy infrastructure with emerging 400G deployments on the same switching platform during multi-year migration cycles. For teams managing heterogeneous hardware environments—a reality in most enterprise and service-provider networks—this flexibility is essential.

Deep per-port buffer memory in the 7280R3 handles burst absorption and congestion scenarios without dropping packets or triggering unnecessary retransmission cycles, a quality that distinguishes this platform in bursty workloads common to AI training clusters and real-time analytics pipelines. Arista's EOS operating system running on this hardware provides a modern, API-first management plane through NETCONF, RESTCONF, and gNMI alongside traditional SNMP and CLI interfaces, giving infrastructure teams the choice between imperative (CLI) and declarative (model-driven) configuration methods. Streaming telemetry and in-band network telemetry (INT) capabilities enable operators to instrument network behaviour at scale without adding dedicated monitoring traffic, a requirement for anyone operating large fabric deployments where traditional SNMP polling becomes a bottleneck. Network engineers and AI infrastructure teams responsible for designing fabric transport often specify the ARISTA-7280R3-001 explicitly because its observability story closes the gap between hardware performance and visibility into what the network is actually doing in production.

Layer 3 protocol support covers the full stack expected in modern spine-leaf architectures: BGP, OSPF, IS-IS, EVPN, and MPLS with IPv4 and IPv6 underlay options. The platform handles VXLAN overlays, LACP link aggregation, and MACsec encryption at line rate, allowing security and automation teams to enforce encryption policies without performance penalties. Redundant hot-swappable AC and DC power supplies, combined with hot-swappable fan modules offering both front-to-rear and rear-to-front airflow configurations, ensure the 7280R3 series fits operational maintenance windows without unplanned downtime. Arista's hitless EOS software upgrade capability means you can roll new features or security patches without disrupting traffic, a requirement in continuous-availability service-provider environments but equally valued in enterprise data centres where maintenance windows are measured in minutes, not hours.

Omnixon Global supplies the Arista 7280R3 series to data centre operators, AI infrastructure teams, and service providers across the GCC, India, Southeast Asia, and into Europe. We maintain ready stock at our Dubai hub and can arrange evaluation units for proof-of-concept deployments in your environment. Whether you are designing a new fabric, refreshing aging spine layers, or scaling an AI cluster, we invite you to engage our technical team with a Request for Quote. We will connect you with Arista's local resources and ensure the ARISTA-7280R3-001 or other configurations in the 7280R3 line align with your topology and timeline.

Performance and Connectivity Specifications

• Switching capacity of 19.2 Tbps with forwarding rate up to 5.7 Bpps; sub-microsecond cut-through latency for low-latency fabric deployments
• High-density 100G QSFP28 and 400G QSFP-DD port options with breakout support; wire-speed support for 1G, 10G, 25G, 40G, 100G, and 400G speeds
• Deep per-port buffer architecture for burst absorption and congestion management without packet loss in bursty workloads
• Full Layer 3 protocol suite including BGP, OSPF, IS-IS, EVPN, and MPLS; VXLAN overlay, LACP link aggregation, and MACsec encryption at line rate
• API-first management through NETCONF, RESTCONF, gNMI, and traditional SNMP/CLI; streaming telemetry and in-band network telemetry for fabric-wide observability
• Redundant hot-swappable power supplies (AC/DC); hot-swappable fan modules with selectable airflow direction for flexible data centre integration
• Hitless EOS software upgrades and redundant management plane for continuous availability; 1U/2U rack-mountable form factor (model-dependent)