• Gray metal arista dcs-7280pr3-24 server rack with multiple slots for 7280r3 24-port 400g switch network equipment
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Arista

Arista DCS-7280PR3K-24 | 7280R3 24-Port 400G OSFP Data Centre Switch Router

DCS-7280PR3K-24

Stock Status: Enquire

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Description

The Arista DCS-7280PR3K-24 is a high-performance 1RU data centre switch router delivering 24 ports of 400GbE OSFP connectivity with 9.6 Tbps total throughput. Engineered for large-scale cloud, content delivery, and internet peering applications, it features the FlexRoute engine supporting up to 2 million routes, 16GB of deep packet buffering, and wire-speed Layer 2 and Layer 3 forwarding. Ideal for demanding data centre spine and leaf deployments requiring maximum density, advanced routing, and lossless performance.

Features

Arista FlexRoute engine with hardware support for over 2 million IPv4 and IPv6 route prefixes
- 16GB dynamic deep buffer memory with Virtual Output Queue (VOQ) architecture for lossless forwarding
- Wire-speed Layer 2 and Layer 3 forwarding at 4 billion packets per second
- Line-rate AES-256-GCM encryption (MACsec, IPsec, VXLANsec) at full 9.6 Tbps throughput
- Algorithmic ACLs with flexible high-scale access control and pattern matching (>24,000 ACL entries)
- Advanced routing protocols: BGP, OSPF, IS-IS, PIM, BGP FlowSpec, BMP, BGP-RPKI, BFD
- MPLS and Segment Routing: LDP, RSVP-TE, SR-MPLS, MPLS-LER/LSR with traffic engineering and FRR
- EVPN services: EVPN-VXLAN, EVPN-MPLS, EVPN-VPWS, EVPN Gateway, EVPN-DCI, EVPN-Multicast
- 512-way ECMP/UCMP with resilient hashing and PIC (Prefix Independent Convergence)
- Multi-Chassis Link Aggregation (MLAG) with LACP for active-active Layer 2 redundancy
- IEEE 1588v2 Precision Time Protocol (PTP) and Synchronous Ethernet (SyncE) for carrier-grade timing
- Inband Network Telemetry (INT) with per-flow latency, congestion, and path visibility
- Accelerated sFlow and IPFIX for line-rate traffic sampling and network analytics
- Hierarchical QoS with ingress policing, flexible rewrite, shaping, and 8 hardware queues
- Redundant hot-swappable 1500W power supplies and hot-swappable fan modules
- Arista EOS with Zero-Touch Provisioning (ZTP), CloudVision integration, and advanced automation via eAPI
- Comprehensive Layer 2 features: 4096 VLANs, MSTP, RPVST+, LACP, Q-in-Q, 802.1X
- Advanced mirroring: Port mirroring (14 sessions), ERSPAN, SPAN/TAP aggregation with M:N filtering
- NEBS Level 3 compliance for carrier and service provider deployments

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

24x 400GbE OSFP ports supporting flexible breakout to 4x100G, 8x50G, or 8x25G configurations
- Switching capacity: 9.6 Tbps (19.2 Tbps full-duplex)
- Forwarding rate: 4 billion packets per second
- Packet buffer: 16GB deep buffer for lossless forwarding and VOQ architecture
- Latency: From 3.8 microseconds
- CPU: Quad-Core x86 processor
- System memory: 64GB
- FlexRoute engine: Supports up to 2 million IPv4 and IPv6 routes with large route table capacity
- MAC address table: 736,000 entries (R3K Balanced profile) / 160,000 (R3K L3 profile)
- Management: CLI, REST API, JSON-RPC, NETCONF, SNMP, USB port, console and Ethernet management ports
- Dimensions (WxHxD): 48.3 x 4.4 x 58.2 cm (19 x 1.75 x 23.6 inches), 1RU
- Weight: 12.7 kg (28.0 lbs)
- Power consumption: 650W typical / 1100W maximum
- Power supply: Redundant hot-swappable 1500W PSU (PWR-1511-AC or PWR-1511-DC)
- Airflow: Configurable front-to-rear or rear-to-front
- Operating temperature: 0°C to 40°C
- Standards compliance: IEEE 802.3bs 400G, IEEE 1588 PTP, SyncE, NEBS compliant

FAQs

Q: What is the difference between the DCS-7280PR3K-24 and the standard DCS-7280PR3-24?
A: The DCS-7280PR3K-24 is the large route variant featuring enhanced FlexRoute capabilities supporting over 2 million IPv4/IPv6 routes compared to the standard model's 1.3 million routes. It also offers expanded MAC address tables and is optimized for internet peering, large-scale routing, and carrier-edge applications requiring full internet routing table support.

Q: Can the OSFP ports be broken out into multiple lower-speed interfaces?
A: Yes, each 400G OSFP port supports flexible breakout configurations including 4x100G, 8x50G, or 8x25G, allowing a maximum of 96x100G or 192x25G/50G interfaces. This provides exceptional deployment flexibility for mixed-speed environments and gradual data centre upgrades.

Q: What licensing is required for advanced routing features?
A: The DCS-7280PR3K-24 requires Arista EOS licensing for advanced features. The FLX license enables full routing capabilities up to 2M routes, advanced MPLS-LER/LSR with traffic engineering, EVPN, VXLAN, and Segment Routing. The Monitoring & Automation license unlocks ZTP, LANZ, TapAgg, API access, and timestamping features.

Q: Is this switch suitable for spine or leaf deployments?
A: The DCS-7280PR3K-24 is ideal for both spine and leaf roles in large-scale data centres. Its 16GB deep buffer and Virtual Output Queue architecture make it particularly well-suited for spine deployments handling in-cast traffic and requiring lossless performance. It supports 512-way ECMP, MLAG, and comprehensive overlay/underlay topologies including VXLAN and MPLS.

Q: What encryption capabilities does this switch support?
A: The switch supports line-rate AES-256-GCM encryption including MACsec for Layer 2, IPsec for Layer 3, and VXLANsec for overlay networks, all at full throughput up to 9.6 Tbps with no performance penalty. This enables secure data centre interconnect and encrypted storage traffic while maintaining wire-speed performance.

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