• Gray metal Arista DCS-7280QR-C72-F network switch with 72 ports and blue lights for high-speed 40G and 100G connections
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Arista

Arista DCS-7280QR-C72M-R | 7280R 72-Port 40G Switch, 16x 100G QSFP

DCS-7280QR-C72M-R

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Description

The Arista DCS-7280QR-C72M-R is a high-density 2RU data center switch router delivering 6.4 Tbps switching capacity with 72 x 40GbE QSFP+ and 16 x 100GbE QSFP ports. Featuring expanded memory, SSD storage, deep packet buffers, and rear-to-front airflow, this switch is purpose-built for large-scale cloud, content delivery, and service provider networks requiring wire-speed Layer 2 and Layer 3 performance. Running Arista EOS, it supports VXLAN, EVPN, MLAG, advanced routing protocols, and full internet routing scale, making it ideal for spine, leaf, and DCI deployments.

Features

Wire-speed Layer 2 and Layer 3 forwarding with non-blocking architecture
- Arista FlexRoute engine for full internet routing table support in hardware
- Deep buffer Virtual Output Queueing (VOQ) eliminates head-of-line blocking
- 16 GB packet buffer for lossless forwarding in congested network scenarios
- VXLAN gateway with hardware VTEP for overlay network integration
- Multi-Chassis Link Aggregation (MLAG) for active-active Layer 2 redundancy
- EVPN support for Layer 2 and Layer 3 network virtualization
- Advanced routing protocols: BGP, MP-BGP, OSPF, OSPFv3, IS-IS, RIPv2
- MPLS and Segment Routing support for service provider environments
- 802.1Q VLAN support (4096 VLANs), Q-in-Q, Rapid PVST+, MST
- Link Aggregation Control Protocol (LACP) with up to 1152 LAG groups
- Jumbo frame support (9216 bytes)
- Comprehensive ACL and QoS with 8 priority queues per port
- Zero Touch Provisioning (ZTP) for automated deployment
- CloudVision integration for network-wide visibility and telemetry
- LANZ (Latency Analyzer) for microburst detection
- DANZ (Data Analyzer) for advanced traffic mirroring and monitoring
- AlgoMatch for scalable policy-based forwarding and network telemetry
- Hot-swappable redundant power supplies (1+1) and fan modules (N+1)
- SSD storage for enhanced logging and system diagnostics
- Software-defined networking (SDN) ready with OpenFlow support

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

72 x 40GbE QSFP+ ports and 16 x 100GbE QSFP ports
- Switching capacity: 6.4 Tbps
- Forwarding rate: 2.88 Bpps (billion packets per second)
- Latency: <3.8 microseconds (store and forward)
- System memory: 8 GB RAM, optional 16 GB expansion
- Packet buffer: 16 GB deep buffer with Virtual Output Queueing (VOQ)
- MAC address table: 768,000 entries
- Routing table scale: Supports full internet routing table (over 1 million routes with FlexRoute)
- Management: Multi-core x86 CPU, CLI, EOS API, SNMP, ZTP, CloudVision
- Dual hot-swappable 1900W AC power supplies with 2 x C19-C20 cords
- Maximum power draw: 1200W typical
- Dimensions: 48.3 x 8.9 x 56.3 cm (2RU), Weight: 21.5 kg
- Airflow: Rear-to-front (reverse airflow), hot-swappable fan modules
- Operating temperature: 0 to 40°C, humidity: 5 to 95% non-condensing

FAQs

Q: What is the difference between the DCS-7280QR-C72M-R and DCS-7280QR-C72M-F?
A: The -R suffix denotes rear-to-front airflow (air flows from fan side to port side), while the -F model features front-to-rear airflow (air flows from port side to fan side). Choose the airflow direction that matches your data center hot-aisle/cold-aisle configuration.

Q: Does this switch support full Layer 3 routing capabilities?
A: Yes, the DCS-7280QR-C72M-R is a full-featured switch router running Arista EOS with support for BGP, OSPF, IS-IS, MPLS, VXLAN, EVPN, and Arista's FlexRoute engine, enabling internet-scale routing with over 1 million routes in hardware.

Q: What does the 'M' designation in the model number indicate?
A: The 'M' indicates this model includes expanded memory and SSD storage, providing enhanced performance for large-scale routing tables, VXLAN overlays, and advanced features compared to the base 7280QR-C72 model.

Q: Can the 100GbE QSFP ports support 40GbE optics?
A: Yes, the QSFP ports on the 7280R series are flexible and can support both 40GbE and 100GbE optics, as well as breakout configurations for additional connectivity options depending on transceiver and cable type.

Q: What deployment scenarios is this switch best suited for?
A: The DCS-7280QR-C72M-R excels in high-performance data center spine/leaf architectures, cloud networking, content delivery networks, internet peering, data center interconnect (DCI), IP storage networks, and service provider edge deployments requiring deep buffers and high-density 40G/100G connectivity.

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