What port breakout options does the DCS-7280QR-C36-R support?

Supports flexible breakout across all 36 ports: QSFP+ ports break to 4x10G SFP+, QSFP28 ports support 4x25G, 2x50G, 4x10G, or native 100G. Maximum configurations include 144x10G, 48x25G, 24x50G, or 36x40G using passive DACs or AOC transceivers compliant with MSA standards.

What is the switching capacity and latency performance?

Provides 4.32Tbps full-duplex switching capacity with 1.44Bpps forwarding rate and sub-3 microsecond latency across all speeds and packet sizes. 8GB shared VoQ buffer prevents drops during microbursts common in spine/leaf and storage fabrics.

Does this switch support internet-scale BGP routing?

Yes, FlexRoute engine supports over 1M IPv4 LPM routes, 768K MAC addresses, and full IPv6 tables with BGP, OSPF, IS-IS. Hardware TCAM enables line-rate L3 forwarding with ECMP across 32-member LAGs for spine deployments.

What management and automation features are available?

Runs Arista EOS with Bash shell, Linux tools, eAPI REST, gNMI telemetry, and CloudVision integration. Supports hitless upgrades, stateful ACLs, and programmable pipeline via LANZ for microsecond latency analytics.

What power and cooling requirements should I plan for?

Maximum 650W consumption with dual redundant hot-swap AC PSUs. Rear-to-front airflow matches standard data center cooling. Single 1U slot with 19-inch rack mounting using standard rails.

Is this model still available for purchase?

Arista announced End of Sale for DCS-7280QR-C36 series on June 30, 2022. New deployments should consider 7280R3 or 7800R3 successors with higher density and performance.

DCS-7280QR-C36-R - Arista DCS-7280QR-C36-R 24x40G+12x100G QSFP Data Center Switch

Name: Arista DCS-7280QR-C36-R 24x40G+12x100G QSFP Data Center Switch
Brand: Arista
SKU: DCS-7280QR-C36-R
Price: 3135 USD
Availability: InStock

DCS-7280QR-C36-R - Arista DCS-7280QR-C36-R 24x40G+12x100G QSFP Data Center Switch | US IT Hardware

Product overview

The Arista DCS-7280QR-C36-R is a high-density data center switch from the 7280R series, featuring 24 ports of 40GbE QSFP+ and 12 ports of 100GbE QSFP, providing flexible interface combinations including 36x40G, 144x10G breakout, 48x25G, or 24x50G configurations. It delivers 4.32Tbps of wire-speed switching performance with 8GB shared packet buffer and sub-3 microsecond latency, ideal for spine/leaf architectures in hyperscale environments. Equipped with FlexRoute technology, it supports internet-scale routing tables exceeding 1M IPv4 LPM routes and 768K MAC addresses. The 1U rack-mountable design includes rear-to-front airflow, dual redundant AC power supplies, and advanced management via EOS (Extensible Operating System) with CLI, SNMP, and API support. QoS features, VXLAN overlay, and EVPN enable modern cloud networking deployments. Targeted for leaf/spine topologies, this switch handles high-radix 100G fabrics with low power consumption under 650W maximum. It supports QSFP+ and QSFP28 optics/cables for seamless migration paths from 40G to 100G infrastructure, making it suitable for service provider peering, enterprise data centers, and financial trading networks requiring deterministic performance.

24x40GbE QSFP+ + 12x100GbE QSFP.
4.32Tbps switching, 1.44Bpps forwarding.
Sub-3μs latency, 8GB shared buffer.
1M+ IPv4 routes, 768K MAC addresses.
1U R-to-F airflow, dual AC PSUs.
Breakout: 144x10G, 48x25G, 24x50G.

Expedited and overnight shipping options are available at checkout, priced by destination and service.
Purchase orders accepted from qualified institutions.
Refunds within 14 days and replacements within 30 days of delivery with an RMA (25% restocking fee on customer-initiated returns), and every part carries our Standard 30-Day Warranty - see our return policy or contact US IT Hardware.

Featuring

Manufacturer part #	DCS-7280QR-C36-R
Brand	Arista
Condition	Refurbished
Protocols	BGP, OSPF, EIGRP, IPv4/IPv6, VXLAN, EVPN
Management	EOS: CLI, SNMP, Syslog, SSH, REST API
Device Type	Data Center Switch Router - L2/L3 - Managed
Routing Tables	1M+ IPv4 LPM ¦ 768K MAC ¦ 768K IPv6 host

Storage

Packet Buffer	8 GB shared packet buffer
MAC Address Table	768K MAC addresses

Compatible systems

Native EOS with ONIE support for open networking. Compatible with Arista data center fabric architectures and major QSFP optics ecosystem.

Arista CloudVision
Model: CVP
Form factor: Virtual Appliance
Generation: 2023
Full EOS management integration
Arista 7280R
Model: 7280CR
Form factor: 1U Rack
Generation: Series
MLAG peer spine connectivity
Arista 7050X
Model: 7050QX-32
Form factor: 1U Rack
Generation: Series
40G/100G fabric uplinks

Best for

Spine/Leaf Data Center Fabric
High-radix 100G leaf/spine deployments using EVPN/VXLAN overlays with MLAG for Clos topology redundancy in hyperscale cloud environments.
High-Frequency Trading
Sub-3μs latency switching for market data feeds and order execution platforms requiring deterministic low-jitter performance with precise timestamping.
Service Provider Peering
Internet exchange point aggregation with BGP full-table routing support exceeding 1M IPv4 routes and 768K MAC tables for carrier networks.

Details

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Latency	Sub-3 microseconds across all port speeds
Forwarding Rate	1.44 Bpps (billion packets per second)
Switching Capacity	4.32 Tbps full duplex ¦ Wire speed

Power Supplies	2x Hot-swappable AC redundant
Power Consumption	Maximum 650W

Dimensions	17.3 x 18 x 1.75 inches (440 x 457 x 44.5 mm)
Form Factor	1U rack-mountable 19-inch EIA

Airflow	Rear-to-Front (R-to-F)
Operating Temperature	0°C to 40°C (32°F to 104°F)

Flexible Breakout	36x40G ¦ 144x10G ¦ 12x100G ¦ 48x25G ¦ 24x50G
Port Configuration	24x 40GbE QSFP+ ¦ 12x 100GbE QSFP ¦ Total 36 ports

Arista DCS-7280QR-C36-R 24x40G+12x100G QSFP Data Center Switch

Product overview

Featuring

Storage

Compatible systems

Best for

Details

Shipping, warranty & returns

Customer reviews

Network & Communication

Power Consumption

Physical Characteristics

Environmental

Interface/Ports

Warranty & Support

Frequently asked questions