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Arista

Arista DCS-7280CR3-32D4-R | 7280R3 32-Port 100G Switch, 4x 400G QSFP-DD, 4.8Tbps

SKU:DCS-7280CR3-32D4-R

Stock Status: Enquire

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Description

The Arista DCS-7280CR3-32D4-R is a high-density data center switch featuring 32x 100GbE QSFP28 ports and 4x 400GbE QSFP-DD uplinks with 4.8 Tbps switching capacity. Built on the 7280R3 platform with dynamic deep buffering and Layer 3 routing capabilities, this rear-to-front airflow model is designed for spine/leaf architectures, IP peering, and content delivery networks. It delivers wire-speed performance with low latency and extensive Layer 2/Layer 3 features powered by Arista EOS.

Features

Layer 2 switching with VLAN support (4096 VLANs), STP/RSTP/MSTP, and MLAG
- Layer 3 routing with BGP, OSPF, IS-IS, and RIP support
- VXLAN hardware support for network virtualization and overlay networks
- FlexRoute engine for Internet-scale routing with up to 1.3M IPv4 routes
- Deep packet buffers (8GB) for lossless forwarding and incast mitigation
- Algorithmic ACLs for scalable access control and policy-based forwarding
- Quality of Service (QoS) with 8 egress queues per port and flexible traffic shaping
- Accelerated sFlow and IPFIX for high-performance network telemetry
- MACsec (802.1AE) encryption support for secure data transmission
- Control Plane Policing (CoPP) and Layer 2-4 ACLs for security
- Arista Latency Analyzer (LANZ) for real-time performance monitoring
- Hot-swappable redundant power supplies and fan modules for high availability
- Zero Touch Provisioning (ZTP) for automated deployment
- CloudVision integration for network-wide visibility and automation
- ECMP routing with up to 128-way load balancing

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

32x 100 Gigabit Ethernet QSFP28 ports
- 4x 400 Gigabit Ethernet QSFP-DD uplink ports
- Switching capacity: 4.8 Tbps
- Forwarding rate: 2 Bpps (billion packets per second)
- Packet buffer: 8GB deep buffer
- MAC address table: 768,000 entries
- Routing capacity: Up to 1.3M IPv4 routes (L3 profile) or 704K (Balanced profile)
- Memory: Up to 32GB DRAM, 8GB Flash
- Latency: As low as 3.8 microseconds
- Management: 1x Gigabit Ethernet, 1x USB, 1x RJ45 RS-232 console port
- Power supplies: Dual hot-swappable 1000W AC power supplies (2x PWR-1011-AC-BLUE)
- Cooling: 3x hot-swappable fan modules (FAN-7011H-R) with rear-to-front airflow
- Dimensions: 1.75 in (4.45 cm) H x 19 in (48.26 cm) W x 18 in (45.72 cm) D (1RU)
- Weight: Approximately 26.2 lbs (11.9 kg)
- Operating system: Arista EOS (Extensible Operating System)

FAQs

Q: What is the difference between the -R and -F airflow models?
A: The DCS-7280CR3-32D4-R features rear-to-front airflow (cold aisle exhaust), while the -F model has front-to-rear airflow (hot aisle exhaust). Choose based on your data center cooling design.

Q: Can the 100G QSFP28 ports support lower speeds?
A: Yes, each QSFP28 port supports 100GbE, 40GbE, and breakout configurations such as 4x 25GbE or 4x 10GbE, depending on the transceiver and cable used.

Q: What routing protocols are supported?
A: The 7280R3 supports advanced IPv4 and IPv6 routing protocols including BGP, OSPF, IS-IS, RIP, VXLAN routing, VRF, and ECMP with up to 128-way paths for load balancing.

Q: Is this switch suitable for spine or leaf deployments?
A: Yes, the DCS-7280CR3-32D4-R is ideal for both spine and leaf roles in modern data center fabrics, offering high-density 100G connectivity and 400G uplinks for scalable spine/leaf architectures.

Q: Does this model support network automation and telemetry?
A: Yes, it runs Arista EOS with eAPI for REST-based automation, CloudVision integration, Zero Touch Provisioning, and advanced telemetry features including Accelerated sFlow and Inband Network Telemetry (INT).

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