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Arista

Arista DCS-7280SR3K-48YC8-FLX-F | 7280R3 48-Port 25G Switch, 8x 100G QSFP28

SKU:DCS-7280SR3K-48YC8-FLX-F

Stock Status: Enquire

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Description

The Arista DCS-7280SR3K-48YC8-FLX-F is a high-performance 1RU data center switch router designed for modern leaf-spine architectures and demanding enterprise networks. It delivers 48x 25GbE SFP28 ports and 8x 100GbE QSFP28 uplinks with 2.4 Tbps throughput, 4GB buffer, and front-to-rear airflow. This R3K variant includes large routing table support with FlexRoute capability for up to 2M routes, EVPN, VXLAN, Segment Routing, and advanced MPLS features, making it ideal for high-density cloud, content delivery, and IP storage deployments.

Features

48x 25GbE SFP28 and 8x 100GbE QSFP28 ports with flexible breakout support
- 2.4 Tbps throughput with 1 Bpps line-rate forwarding
- FlexRoute Engine supporting up to 2M IPv4 routes and Internet-scale routing
- Dynamic deep buffering with 4GB total system buffer and Virtual Output Queuing (VOQ)
- Full Layer 2/3 routing: BGP, OSPF, IS-IS, MPLS, Segment Routing, EVPN, VXLAN
- Advanced MPLS-LER/LSR with traffic engineering (RSVP-TE, BGP-LU)
- ECMP support with up to 512-way equal-cost multipath
- Algorithmic ACLs with >24K entries for scalable policy control
- Accelerated sFlow with 1:500 sampling rates at line rate
- Inband Network Telemetry (INT) and IPFIX for advanced visibility
- LANZ (Latency Analyzer) for real-time congestion detection
- Multi-Chassis Link Aggregation (MLAG) for active-active redundancy
- IEEE 1588v2 PTP with hardware timestamping and SyncE support
- Dual hot-swappable AC power supplies (1+1 redundancy)
- N+1 redundant hot-swappable fan modules
- Arista EOS with stateful process restart and hitless upgrades
- CloudVision integration for network-wide automation and telemetry
- Zero Touch Provisioning (ZTP) and NETCONF/REST API programmability
- Advanced Event Management (AEM) for proactive network monitoring
- Front-to-rear airflow for hot aisle/cold aisle data center deployment

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 configurable)
- 8x 100GbE QSFP28 ports (40G/100G, breakout to 4x 10G or 4x 25G)
- Switching Capacity: 2.4 Tbps (full duplex)
- Forwarding Rate: 1 Bpps (billion packets per second)
- Total Buffer: 4GB system buffer with dynamic deep buffering
- Latency: 3.8µs (store-and-forward)
- FlexRoute Engine: Up to 2M IPv4 routes, >24K ACL entries
- Routing Protocols: BGP, OSPF, IS-IS, MPLS (LDP, RSVP-TE, BGP-LU), Segment Routing, EVPN, VXLAN
- Management: Arista EOS, CLI, REST API, gNMI, NETCONF, CloudVision integration
- Memory: Enhanced control-plane memory (x86 CPU architecture)
- Form Factor: 1RU, 1.75" H x 17.4" W x 20.7" D
- Power Supplies: Dual hot-swappable 1900W AC PSUs (1+1 redundancy)
- Cooling: Front-to-rear airflow (-F suffix), N+1 redundant hot-swappable fans
- Operating Temperature: 0°C to 40°C
- Compliance: RoHS, FCC Class A, CE, NEBS Level 3 (with DC option)
- Weight: Approximately 10.5 kg (23 lbs)

FAQs

Q: What is the difference between the SR3 and SR3K variants?
A: The SR3K variant includes large routing table support with FlexRoute capability for up to 2M routes, enhanced ACL capacity (>24K entries), and advanced MPLS-LER/LSR features. The standard SR3 supports up to 256K routes with base MPLS LSR. The SR3K is ideal for Internet peering, carrier edge, and large-scale routing deployments.

Q: What does the -FLX-F suffix indicate in the SKU?
A: The -FLX suffix indicates this model ships with the FLX license for full routing features including up to 2M routes, EVPN, VXLAN, Segment Routing, and advanced MPLS capabilities. The -F suffix denotes front-to-rear airflow, where cool air enters from the port side and exhausts from the rear fan side.

Q: Can the QSFP28 ports be used for breakout configurations?
A: Yes, the 8x 100GbE QSFP28 ports support flexible breakout configurations to 4x 10G or 4x 25G per port, allowing up to 80 logical ports total. This provides deployment flexibility for mixed-speed environments and maximizes connectivity options.

Q: What deployment scenarios is this switch best suited for?
A: The DCS-7280SR3K-48YC8-FLX-F is ideal for high-performance data center leaf-spine fabrics, cloud service provider networks, content delivery networks (CDNs), IP storage deployments, and Internet peering environments. The large routing table and deep buffers make it suitable for lossless forwarding and large-scale Layer 3 architectures.

Q: Does this switch support Zero Touch Provisioning and automation?
A: Yes, it supports Zero Touch Provisioning (ZTP) for automatic configuration on first boot, CloudVision integration for centralized network management, and extensive automation capabilities via REST API, gNMI streaming telemetry, NETCONF, Python scripting, and Ansible integration through Arista EOS.

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