• Gray arista dcs-7280sr3-48yc8-f network switch with 48 25g ports and green indicator lights on front panel
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Arista

Arista DCS-7280SR3-48YC8-FLX-F | 7280R3 48-Port 25G Switch, 8x 100G QSFP28

DCS-7280SR3-48YC8-FLX-F

Stock Status: Enquire

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Description

The Arista DCS-7280SR3-48YC8-FLX-F is a high-performance 1RU data center switch router featuring 48x 25GbE SFP28 ports and 8x 100GbE QSFP28 uplinks with front-to-rear airflow. Built on the Broadcom Jericho2 architecture with 4GB deep buffer memory, it delivers 2 Tbps switching capacity and sub-microsecond latency for demanding cloud, leaf-spine, IP storage, and service provider deployments. The FLX-Lite license provides full routing support for up to 256K routes with EVPN, VXLAN, Segment Routing, and base MPLS capabilities.

Features

Broadcom Jericho2C ASIC with 2 Tbps switching capacity and 4GB deep packet buffer
- Virtual Output Queue (VOQ) architecture eliminates head-of-line blocking for lossless forwarding
- Layer 2 features: VLAN, STP/RSTP/MSTP, MLAG, LACP, 802.1Q, LLDP
- Layer 3 routing: BGP, OSPF, IS-IS, ECMP, UCMP, PIM, static routing, BFD
- VXLAN routing and bridging with EVPN control plane (MPLS and IP underlay)
- MPLS features: LDP, Segment Routing (SR), base MPLS LSR with FLX-Lite license
- IPv4 and IPv6 unicast and multicast routing
- Algorithmic ACLs with 100K+ rules and flexible pattern matching
- Quality of Service: Flexible classification, ingress policing, hierarchical QoS, weighted fair queueing
- Network telemetry: sFlow, DANZ fabric monitoring, LANZ latency detection, streaming telemetry
- IEEE 802.1AE MACsec encryption support on all ports (hardware-based)
- Precision timing: IEEE 1588 PTPv2 and Synchronous Ethernet (SyncE)
- CloudVision integration for centralized management, automation, and analytics
- Zero Touch Provisioning (ZTP) for automated deployment
- Arista EOS operating system with full Linux shell access and programmability
- Hot-swappable redundant power supplies and fan modules for high availability
- Comprehensive REST API, gNMI, OpenConfig, and JSON-RPC for automation
- Compatible with Arista and industry-standard transceivers and direct-attach cables

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 (1G/10G/25G compatible)
- 8x 100GbE QSFP28 uplink ports (40G/100G, 4x25G or 4x10G breakout)
- Maximum 80 ports with breakout configurations
- Switching capacity: 2 Tbps wire-speed (4 Tbps full duplex)
- Forwarding rate: 1 Bpps
- Latency: As low as 800 nanoseconds
- Packet buffer: 4GB deep buffer with Virtual Output Queue architecture
- MAC address table: 384K entries
- IPv4 unicast routes: Up to 1.45 million (standard), 256K routes with FLX-Lite license
- Algorithmic ACLs: 100K+ rules with expanded pattern matching
- CPU: Quad-core x86 Intel Atom processor
- Memory: 16GB ECC-protected DRAM
- Flash storage: 4GB
- Power supplies: Dual hot-swappable AC (1+1 redundancy)
- Cooling: Front-to-rear airflow with N+1 redundant hot-swappable fans
- Form factor: 1RU rack-mountable
- Dimensions: 1.75" H x 17.4" W x 20.7" D
- Management: CLI, Web GUI, SNMP, gNMI, eAPI, JSON-RPC
- Compliance: RoHS, CE, FCC

FAQs

Q: What does the FLX-Lite license included with this model provide?
A: The FLX-Lite license enables full routing support for up to 256K routes with EVPN, VXLAN, Segment Routing (SR), and base MPLS LSR capabilities without traffic engineering or link/node protection. This makes it suitable for modern data center fabric deployments, overlay networks, and service provider edge applications.

Q: Can the QSFP28 uplink ports be broken out for additional connectivity?
A: Yes, each of the 8x 100GbE QSFP28 ports supports breakout configurations to 4x25G or 4x10G, enabling a maximum density of up to 80 usable ports in the 1RU form factor. This provides flexibility for mixed-speed environments and migration scenarios.

Q: What deployment scenarios is this switch best suited for?
A: The DCS-7280SR3-48YC8-FLX-F is ideal for high-density 25GbE leaf layer deployments in spine-leaf data center fabrics, IP storage networks, cloud provider infrastructure, VXLAN EVPN overlay networks, internet peering, and data center interconnect applications requiring deep buffers and lossless forwarding.

Q: Does this model support VXLAN and EVPN for overlay networking?
A: Yes, the switch includes native support for VXLAN routing and bridging, EVPN control plane, and overlay gateway functionality. This enables multi-tenant virtualized environments, workload mobility, and modern data center fabric architectures with the FLX-Lite license.

Q: What is the difference between the F and R model variants?
A: The primary difference is airflow direction: the -F model features front-to-rear airflow (ideal for cold-aisle/hot-aisle designs), while the -R model uses rear-to-front airflow. All hardware specifications, port configurations, and software capabilities are identical between variants.

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