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Arista

Arista DCS-7280CR3A-32S-FLX-R | 7280R3A 28x 100G QSFP + 2x 400G QSFP-DD Switch

SKU:DCS-7280CR3A-32S-FLX-R

Stock Status: Enquire

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Description

The Arista DCS-7280CR3A-32S-FLX-R is a high-performance data center switch router designed for demanding cloud, spine-leaf, and service provider environments. Featuring 28x 100GbE QSFP ports and 2x 400GbE QSFP-DD uplinks, it delivers 4.8 Tbps of non-blocking switching capacity with deep buffers and ultra-low latency. The FLX license enables advanced routing with support for over 256K routes, MPLS, VXLAN, EVPN, and Segment Routing, making it ideal for large-scale data centers, internet peering, and network virtualization deployments.

Features

Non-blocking 4.8 Tbps switching fabric with wire-speed L2/L3 forwarding
- Deep 4 GB virtual output queue (VOQ) buffer architecture eliminates head-of-line blocking
- FlexRoute engine with algorithmic LPM for internet-scale routing tables
- Multi-Chassis Link Aggregation (MLAG) for active-active L2 topologies
- EVPN-VXLAN overlay networking for network virtualization and multi-tenancy
- Advanced QoS with weighted fair queuing and priority scheduling
- Standards-based MACsec IEEE 802.1AE line-rate encryption
- Synchronous Ethernet (SyncE) and IEEE 1588v2 PTP timing support
- Comprehensive MPLS support including LDP, RSVP-TE, Segment Routing
- BGP, OSPF, ISIS, PIM multicast routing protocols
- Accelerated sFlow and IPFIX for line-rate network telemetry
- Zero Touch Provisioning (ZTP) and CloudVision integration
- Hot-swappable redundant power supplies and fan modules
- Advanced features: LANZ (Latency Analyzer), TAP aggregation, Precision Time Protocol
- Arista EOS single image across all platforms for operational simplicity

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

Ports: 28x 100GbE QSFP ports, 2x 400GbE QSFP-DD ports
- Switching Capacity: 4.8 Tbps
- Throughput: 2 Bpps (billion packets per second)
- Buffer Memory: 4 GB deep packet buffer with VOQ architecture
- Routing Scale: Over 256K IP routes (FLX license), FlexRoute engine support
- Layer 2/3 Features: MLAG, ECMP, EVPN, VXLAN, BGP, OSPF, ISIS, PIM
- MPLS Support: Advanced MPLS LER/LSR capabilities
- Security: MACsec IEEE 802.1AE encryption, ACL support
- Management: CLI, Web UI, REST API, SNMP, Arista CloudVision support
- Airflow: Rear-to-front (blue) cooling
- Power Supplies: 2x 1500W AC hot-swappable redundant PSUs
- Form Factor: 1RU rack-mountable
- Operating System: Arista EOS (Extensible Operating System)

FAQs

Q: What is the difference between the FLX and standard license?
A: The FLX license provides full routing support for over 256K routes with advanced features including MPLS LER/LSR, EVPN, VXLAN, Segment Routing, and enhanced ACL capabilities. Standard models without FLX have lower route table limits and fewer advanced routing protocol features.

Q: Can this switch support 400G on all ports?
A: No, the DCS-7280CR3A-32S-FLX-R has 28 ports designed for 100GbE QSFP transceivers and 2 dedicated 400GbE QSFP-DD ports. The QSFP-DD ports can also operate at 200G or 100G for flexibility in network design.

Q: What deployment scenarios is this switch best suited for?
A: This switch is ideal for data center spine and leaf architectures, internet peering, service provider edge routing, high-performance cloud networks, and EVPN-VXLAN overlay deployments requiring high port density and deep buffers for lossless forwarding.

Q: Does the -R suffix affect functionality?
A: The -R suffix indicates rear-to-front (blue) airflow direction with 2x AC power supplies included. Functionality is identical to the -F (front-to-rear) model; choose based on your data center hot/cold aisle cooling architecture.

Q: Is this switch compatible with multi-vendor networks?
A: Yes, the 7280R3A Series runs Arista EOS which supports open standards including IEEE, IETF protocols, and multi-vendor interoperability. It works seamlessly with industry-standard QSFP and QSFP-DD transceivers and supports standard routing protocols for integration into mixed-vendor environments.

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