• Gray metal arista dcs-7280sr-48c6-f network switch with 48 10g sfp and 6 100g qsfp ports and blue-lit panel
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Arista

Arista DCS-7280SR-48C6-M-F | 7280R 48-Port 10G Switch, 6x 100G QSFP28, Front-to-Rear

DCS-7280SR-48C6-M-F

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Description

The Arista DCS-7280SR-48C6-M-F is a high-performance data center switch delivering 2.16 Tbps non-blocking throughput with 48x 10GbE SFP+ and 6x 100GbE QSFP28 ports. Featuring 32 GB expanded system memory, 4 GB deep packet buffers, and integrated SSD storage, this 1RU switch is optimized for universal leaf and spine deployments, large routing tables, and low-latency workloads. Front-to-rear airflow ensures efficient cooling in high-density racks.

Features

Layer 2 switching: VLAN, STP/RSTP/MSTP, MLAG multi-chassis link aggregation
- Layer 3 routing: BGP, OSPF, IS-IS, static routing, 128-way ECMP
- Advanced routing: MPLS, Segment Routing (SR-MPLS), EVPN, VXLAN gateway
- Virtual Output Queue (VOQ) architecture with 4 GB deep packet buffer
- Low latency: 3.8 µs store-and-forward across all port configurations
- Accelerated sFlow with dedicated engine supporting up to 1.6 Mpps sampling
- Advanced telemetry: LANZ (Latency Analyzer), DANZ, AEM, streaming telemetry
- Zero Touch Provisioning (ZTP) for automated deployment
- CloudVision integration for network-wide automation and telemetry
- Precision Time Protocol (PTP) support for timing synchronization
- ACL and QoS: Hardware-based ACLs, flexible QoS with multiple queue disciplines
- Security: 802.1X, MACsec ready platform, control plane protection
- Redundant hot-swappable power supplies and fans (N+1 fan redundancy)
- SSD storage for advanced logging, packet capture, and on-switch applications
- Arista EOS: single binary image, modular state-sharing architecture, Linux-based

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 10GBASE-X SFP+ ports (1G/10G)
- 6x 100GBASE-R QSFP28 ports (40G/100G with 4x25G or 4x10G breakout support)
- Switching capacity: 2.16 Tbps full-duplex, non-blocking
- Forwarding rate: 720 Mpps
- Latency: 3.8 µs store-and-forward
- Packet buffer: 4 GB VOQ deep buffer architecture
- System memory: 32 GB DRAM (expanded)
- Flash storage: 4 GB + integrated SSD
- MAC address table: 768,000 entries
- CPU: Quad-core x86
- Management: CLI, SNMP, web UI, REST API, NETCONF, CloudVision integration
- Power supply: 2x 500W AC redundant, hot-swappable (front-to-rear airflow)
- Fans: 4x hot-swappable (N+1 redundant, front-to-rear airflow)
- Dimensions: 1RU, 19 x 1.75 x 16 in (48.3 x 4.4 x 40.6 cm)
- Typical power consumption: 263W / Max 381W
- Weight: 17.8 lbs (8.1 kg)
- Operating system: Arista EOS

FAQs

Q: What is the difference between the DCS-7280SR-48C6-M-F and the standard DCS-7280SR-48C6-F?
A: The -M suffix indicates expanded memory (32 GB system DRAM vs. standard 8 GB) and integrated SSD storage. This configuration is designed for large BGP routing tables, extensive ACL configurations, and advanced feature sets. The -F suffix denotes front-to-rear airflow.

Q: Can the 100GbE QSFP28 uplinks be broken out to lower speeds?
A: Yes, each 100GbE QSFP28 port supports breakout to 4x 25GbE or 4x 10GbE, enabling flexible connectivity for multi-speed environments and maximizing port density for lower-speed connections.

Q: What is the deep buffer VOQ architecture and why does it matter?
A: The 4 GB Virtual Output Queue (VOQ) architecture eliminates head-of-line blocking and provides substantial burst absorption capacity. This design handles TCP incast events, bursty traffic patterns, and transient congestion without triggering early packet drops, making it ideal for storage networks, big data applications, and oversubscribed topologies.

Q: Is this switch suitable for deployment as a universal leaf in a data center fabric?
A: Yes, the DCS-7280SR-48C6-M-F is designed for universal leaf and spine deployments, supporting full Layer 2/3 switch router capabilities including BGP, MPLS, Segment Routing, EVPN, VXLAN, and 128-way ECMP. The expanded memory supports large routing tables required for leaf routers in modern fabrics.

Q: What licensing is required for advanced features on this switch?
A: The 7280R Series requires Arista EOS feature licenses for advanced capabilities. Check with Arista or your reseller for specific licensing options such as LIC-FIX-2 for monitoring and provisioning or FLX licenses for full routing, EVPN, VXLAN, and advanced MPLS features.

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