• Stack of four silver arista dcs-7280sr3a-48yc8-f 48-port 50g network switches with ventilation grilles and multiple ports
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Arista

Arista DCS-7280SR3A-48YC8-F | 7280R3A 48-Port 50G Switch, 6x 200G QSFP

DCS-7280SR3A-48YC8-F

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Description

The Arista DCS-7280SR3A-48YC8-F is a high-performance data center switch router designed for cloud, content delivery, and leaf-spine architectures. Featuring 48 ports of 10G/25G/50G SFP connectivity and 6 ports of 200G QSFP uplinks, it delivers 3.6 Tbps wire-speed performance with 4 GB packet buffer and deep buffering for lossless forwarding. With front-to-rear airflow and dual hot-swappable AC power supplies, this 1RU switch supports Layer 2/3 routing, MACsec encryption, SyncE timing, and internet-scale routing tables for demanding enterprise and service provider environments.

Features

Arista EOS (Extensible Operating System) with unified control and management
- FlexRoute with internet-scale routing tables (up to 1.45M IPv4 routes, expandable to 5M+ with K variant)
- Layer 2: VLAN (4096), 802.1Q trunking, Q-in-Q, LACP (256 ports/channel), MLAG, RSTP/MSTP, RPVST+
- Layer 3: OSPF, OSPFv3, BGP, MP-BGP, IS-IS, RIPv2, static routing, PBR
- VXLAN routing and bridging with EVPN control plane for overlay networks
- MACsec (802.1AE) line-rate encryption on all ports
- SyncE (Synchronous Ethernet) for timing synchronization
- Virtual Output Queueing (VOQ) architecture to eliminate head-of-line blocking
- Deep packet buffering (4 GB) for burst absorption and traffic prioritization
- Algorithmic ACLs supporting 100K+ rules with flexible pattern matching
- sFlow sampling at full forwarding capacity across all interfaces
- Precision Time Protocol (IEEE 1588v2 PTP) for sub-microsecond time accuracy
- DANZ (Data ANalyzer) and multi-port mirroring for network visibility
- Redundant hot-swappable power supplies and fans with N+1 redundancy
- Zero-touch provisioning (ZTP) and CloudVision management integration
- REST API, JSON, and Python scripting for automation

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 10G/25G/50G SFP28 ports (configurable per port group)
- 6x 200G QSFP-DD uplink ports (flexible 100G/200G support)
- Switching capacity: 3.6 Tbps wire-speed, non-blocking
- Forwarding rate: 2.7 Bpps (billion packets per second)
- Packet buffer: 4 GB for burst absorption and traffic management
- MAC address table: Up to 384K entries
- IPv4 unicast routes: Up to 1.45 million routes (expandable with K variant)
- Control plane: Eight-core x86 CPU, DRAM, 120 GB SSD
- Latency: Sub-microsecond cut-through forwarding
- Management: CLI, REST API, SNMP, NetConf, NETCONF/YANG
- Airflow: Front-to-rear (port side to fan side)
- Power: Dual hot-swappable 1000W AC/DC power supplies (1+1 redundancy)
- Dimensions: 1RU (1.75" H x 17.5" W x 22" D)
- Operating temperature: 0°C to 40°C
- Certifications: IEEE 802.3, RoHS, NEBS Level 3 ready

FAQs

Q: What port speeds does the DCS-7280SR3A-48YC8-F support?
A: The 48 SFP28 ports support 10G, 25G, and 50G speeds (configurable per port group), while the 6 QSFP-DD uplink ports support 100G and 200G with flexible breakout options for 25G/50G SFP connectivity.

Q: Is this switch suitable for leaf-spine data center deployments?
A: Yes, the 7280SR3A-48YC8-F is designed for leaf-spine architectures with 48 high-speed access ports and 6 x 200G uplinks for spine connectivity, delivering 3.6 Tbps throughput with deep packet buffering for lossless forwarding.

Q: Does this model include fans and power supplies?
A: No, the -F suffix indicates front-to-rear airflow configuration with dual hot-swappable power supplies included. The switch ships with two 1000W AC power supplies and hot-swappable fan modules for N+1 redundancy.

Q: What routing protocols are supported on this switch?
A: The DCS-7280SR3A-48YC8-F supports comprehensive Layer 3 routing including OSPF, OSPFv3, BGP, MP-BGP, IS-IS, RIPv2, static routes, and VXLAN routing with EVPN control plane for overlay networks.

Q: Can this switch support MACsec encryption?
A: Yes, the 7280R3A Series supports MACsec (IEEE 802.1AE) for line-rate Layer 2 encryption on all ports, along with SyncE timing synchronization for carrier-grade timing distribution.

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