• Gray metal arista dcs-7280cr3a-48d6-flx-r switch with 48 100g ports and 6 400g qsfp-dd ports shown from back side
1 1

Arista

Arista DCS-7280CR3A-48D6-FLX-R | 7280R3A 48-Port 100G Switch, 6x 400G QSFP-DD

DCS-7280CR3A-48D6-FLX-R

Stock Status: Enquire

Request Quote
Sale Sold out
Shipping calculated at checkout.
20-min response

Need a quote or bulk pricing? Answered within 20 minutes, Sydney business hours.

Description

The Arista DCS-7280CR3A-48D6-FLX-R is a high-performance data center switch router delivering 7.2 Tbps wire-speed capacity with 48x 100GbE QSFP ports and 6x 400GbE QSFP-DD uplinks. Featuring rear-to-front airflow and 8GB packet buffer, this 2RU switch includes FLX licensing for advanced routing with support for over 256K routes, MPLS, VXLAN, EVPN, BGP, OSPF, and ISIS. Ideal for spine/leaf architectures, cloud data centers, content delivery networks, and high-performance computing environments requiring deep buffers and internet-scale routing.

Features

Arista EOS network operating system with stateful fault repair and hitless upgrades
- FlexRoute engine for internet-scale routing up to 5M routes with flexible forwarding profiles
- Virtual Output Queue (VOQ) architecture eliminates head-of-line blocking for lossless forwarding
- 8GB deep packet buffer for handling microbursts and congestion scenarios
- Multi-Chassis Link Aggregation (MLAG) for active-active Layer 2 topology
- Equal Cost Multi-Path (ECMP) routing for Layer 3 spine-leaf designs
- VXLAN and EVPN support for overlay network virtualization and multi-tenancy
- Advanced routing protocols: BGP, OSPF, ISIS, PIM for multicast
- MPLS LDP, LER, LSR, and Segment Routing (SR) capabilities
- Algorithmic ACLs for high-scale access control and policy-based forwarding
- Accelerated sFlow for granular telemetry at 1:500 sampling rates at wire speed
- Zero Touch Provisioning (ZTP) and Zero Touch Replacement (ZTR) for automation
- Advanced Event Management (AEM) for customizable alerts and automated responses
- CloudVision integration for network-wide visibility and automated workflows
- Latency Analyzer (LANZ) and Data Analyzer (DANZ) for real-time network monitoring
- Hot-swappable redundant power supplies and fan modules
- Synchronous Ethernet (SyncE) for precision timing
- Standards-based protocols: IEEE 802.1Q, 802.1ad, 802.3, 802.1p QoS
- RESTful API and eAPI for programmability and third-party integration
- Support for 1G to 400G transceivers across SFP, QSFP, and QSFP-DD form factors

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 100GbE QSFP ports for high-density connectivity
- 6x 400GbE QSFP-DD uplink ports
- Switching capacity: 7.2 Tbps wire-speed performance
- Packet buffer: 8 GB deep buffer with VOQ architecture
- Routing table: Over 256K routes with FlexRoute engine (up to 2M routes with FLX license)
- Memory: 120 GB SSD storage
- Virtual interfaces: Up to 4096 VLANs
- Management: CLI, SNMP, Web Interface, REST API, CloudVision
- Airflow: Rear-to-front (port side to fan side)
- Form factor: 2RU rackmount
- Power supply: Dual redundant AC power supplies (2x 1500W)
- Operating temperature: 0°C to 40°C
- Protocol support: BGP, OSPF, ISIS, PIM, MPLS, VXLAN, EVPN, SyncE
- Latency: Sub-microsecond forwarding
- EOS operating system with advanced automation and telemetry

FAQs

Q: What is included with the FLX license on this switch?
A: The FLX license provides full routing capabilities supporting over 256K routes (up to 2M), advanced MPLS LER/LSR features, EVPN, VXLAN, Segment Routing, algorithmic ACLs with over 24K entries, and enhanced policy-based forwarding. This makes it suitable for internet peering, service provider edge, and large-scale data center deployments.

Q: What is the difference between rear-to-front and front-to-rear airflow?
A: The -R suffix indicates rear-to-front airflow, meaning air flows from the fan side to the port side. This configuration is designed for data centers where cool air enters from the rear (cold aisle) and hot air exhausts from the front (hot aisle). Ensure your rack layout matches this airflow pattern for optimal cooling efficiency.

Q: Can this switch be used as a spine or leaf in a data center fabric?
A: Yes, the 7280CR3A-48D6 is ideal for both spine and leaf roles. Its 48x 100G ports and 6x 400G uplinks provide excellent versatility for spine deployments with high-capacity north-south connectivity, or as a high-density leaf with 400G spine uplinks. The deep buffer and VXLAN support make it perfect for modern overlay fabrics.

Q: What power supplies are compatible with this model?
A: The switch supports dual redundant power supplies including PWR-1511-AC (AC) or PWR-1511-DC (DC) models, each rated at 1500W. The dual PSU configuration provides N+1 redundancy for high availability deployments.

Q: Does this switch support MACsec encryption?
A: The base 7280CR3A-48D6-FLX-R model does not include MACsec encryption. For enhanced security features including TunnelSec and MACsec, consider the 7280CR3AM or 7280CR3AK variants which include encryption licensing.

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