• Stack of four silver-colored arista dcs-7280sr3mk-48yc8a-s-dc-f 48-port 25g macsec network switches with ventilation grilles
1 1

Arista

Arista DCS-7280SR3MK-48YC8A-S-DC-F | 7280R3 48-Port 25G MACsec Switch, 8x 100G QSFP+

DCS-7280SR3MK-48YC8A-S-DC-F

Stock Status: Enquire

Request Quote
Sale Sold out
Shipping calculated at checkout.

Description

The Arista DCS-7280SR3MK-48YC8A-S-DC-F is a high-performance 1RU data center switch router featuring 48 ports of 25GbE SFP28 and 8 ports of 100GbE QSFP28 connectivity with line-rate MACsec encryption. Part of the 7280R3 Series, this MK variant delivers 2.4Tbps throughput with 4GB buffer memory, expanded routing tables supporting over 5 million IPv4 routes, and an enhanced eight-core x86 CPU. Designed for cloud data centers, service providers, and enterprise networks requiring secure high-density switching with advanced Layer 2/3 capabilities, MPLS, Segment Routing, and EVPN services.

Features

Line-rate AES-256-GCM MACsec encryption on all ports
- FlexRoute engine supporting over 5 million IPv4 routes in hardware
- Deep buffer VOQ architecture with 4GB packet buffer eliminates head-of-line blocking
- Advanced Layer 2/3 switching with OSPF, BGP, IS-IS, VRRP support
- VXLAN routing and bridging with EVPN control plane (EVPN-VXLAN)
- MPLS and Segment Routing (SR-MPLS, SR-TE) for traffic engineering
- Carrier-grade timing with IEEE 1588 PTP and Synchronous Ethernet (SyncE)
- Hierarchical QoS with granular traffic shaping and policing
- Algorithmic ACLs supporting 100K+ rules for scalable security policies
- LANZ (Latency Analyzer) for real-time congestion visibility
- sFlow and DANZ (Datapath ANalyZer) for comprehensive network monitoring
- Hot-swappable dual DC power supplies and N+1 redundant fans
- Zero Touch Provisioning (ZTP) for automated deployment
- Arista EOS with eAPI, REST API, and OpenConfig support
- IPv4/IPv6 dual stack with up to 2 million IPv4 unicast routes (expandable with K variant)
- Link Aggregation (LACP), MC-LAG, and ECMP for resiliency
- Network virtualization with VRF-Lite, MPLS L3VPN, and EVPN services

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.

View full details

specs-tabs

Technical Specifications

FAQs

Technical Specifications

48x 25GbE SFP28 ports (supports 1G/10G/25G)
- 8x 100GbE QSFP28 ports (supports 40G/100G with breakout to 4x10G or 4x25G)
- Switching capacity: 2.4Tbps full-duplex
- Forwarding rate: 1 billion packets per second
- Buffer memory: 4GB deep packet buffer with VOQ architecture
- Routing capacity: Over 5 million IPv4 routes (FlexRoute K variant), up to 384K MAC addresses
- CPU: Eight-core x86 processor (A variant)
- Memory: 64GB DRAM, 120GB SSD storage
- MACsec: Line-rate AES-256-GCM encryption on all ports
- Power supply: Dual hot-swappable DC power supplies (1000W DC/DC)
- Airflow: Front-to-rear (port side to fan side)
- Form factor: 1RU rackmount, 1.75in H x 17.4in W x 20.7in D
- Management: Arista EOS, CLI, SNMP, REST API, CloudVision support
- Operating temperature: 0°C to 40°C (configurable fans and optics dependent)
- Certifications: RoHS compliant

FAQs

Q: What encryption capabilities does this switch support?
A: The DCS-7280SR3MK-48YC8A-S-DC-F supports line-rate MACsec with AES-256-GCM encryption on all 48x 25G SFP28 and 8x 100G QSFP28 ports, providing point-to-point link-layer security without performance penalty. The MK variant also supports TunnelSec with IPsec and VXLANsec for encrypted tunneling across Layer 2 and Layer 3 networks.

Q: What makes the MK and A variants different from standard 7280R3 models?
A: The M designation indicates MACsec hardware encryption support. The K variant provides enhanced FlexRoute capabilities supporting over 5 million IPv4 routes, 64GB DRAM, and 120GB SSD for internet-scale routing. The A suffix adds an eight-core x86 CPU for enhanced control plane processing, making this platform ideal for demanding service provider and large-scale data center deployments.

Q: Can this switch be used in spine-leaf architectures?
A: Yes, the DCS-7280SR3MK-48YC8A-S-DC-F is ideal for both leaf and spine roles in modern data center fabrics. The 48x 25G ports work well for server connectivity or inter-switch links, while the 8x 100G QSFP28 uplinks provide high-bandwidth spine connectivity. It supports VXLAN, EVPN, BGP, and advanced routing protocols required for scalable leaf-spine designs.

Q: Is this model compatible with Arista CloudVision management?
A: Yes, all Arista 7280R3 Series switches run Arista EOS and are fully compatible with CloudVision for centralized network-wide automation, telemetry, workflow orchestration, and zero-touch provisioning. The platform supports streaming telemetry, eAPI programmability, and advanced analytics for modern DevOps-driven network operations.

Q: What DC power input does this switch require?
A: The -DC suffix indicates this model uses dual hot-swappable DC power supplies rated at 1000W DC/DC (PWR-1011-DC). Typical DC input voltage ranges are -40VDC to -72VDC, making it suitable for telecommunications and service provider environments with DC power infrastructure. The -F suffix indicates front-to-rear airflow for cold-aisle/hot-aisle data center deployments.

Recently Viewed

  • Request a Quote

    Looking for competitive pricing? Submit a request, and our team will provide a tailored quote that fits your needs.

  • Contact Us Directly

    Have a question or need immediate assistance? Call us for expert advice and real-time support.

    Call us Now  

  • Contact Us Directly

    Have a question or need immediate assistance? Call us for expert advice and real-time support.

    Contact us