What is the switching performance of the Arista DCS-7124FX-R?

It provides 480 Gigabits per second throughput and 360 million packets per second with wire-speed L2/3/4 forwarding. Sub-500 nanosecond latency applies to all packet sizes, enabling ultra-low jitter for high-performance applications like HFT and packet processing.

How does the FPGA subsystem enhance functionality?

The 8 FX ports connect directly to a programmable FPGA with 6.2M gates, 50Mb SRAM, 8GB DDR3 DRAM ECC, and PCIe Gen2 to CPU. This supports custom ANSI C logic for inline processing, integrated with EOS for monitoring, ideal for security appliances or custom acceleration.

What Layer 3 routing capabilities are supported?

Supports 16K IPv4 routes, 4K IPv6 routes, OSPF, BGP, 16-way ECMP, PIM-SM, VRRP, and VARP. Route maps and policers enable fine-grained control for large-scale data center routing with multipath redundancy.

What management and monitoring features are available?

Includes LANZ for latency analysis, ZTP for automated provisioning, 50GB SSD for logging, eAPI, SNMPv3, SSHv2, and Blue Beacon LED. USB restore and serial console simplify operations in automated environments.

What power and environmental specs apply?

Rear-to-front airflow model with 2x hot-swap 100-240VAC PSUs (1+1 redundant), 4x N+1 fans. Operates 0-40C, 5-95% humidity, up to 10,000ft altitude; typical 5W/port efficiency in compact 18lbs 1RU chassis.

Is the DCS-7124FX-R suitable for lossless fabrics?

Yes, with 802.1Qbb PFC, DCBX, DSCP classification, egress queuing/shaping, and jumbo frames up to 9216 bytes. Supports IGMP snooping and storm control for converged storage and lossless Ethernet fabrics.

DCS-7124FX-R - Arista DCS-7124FX-R 24x10GbE 480Gbps FPGA Switch

Name: Arista DCS-7124FX-R 24x10GbE 480Gbps FPGA Switch
Brand: Arista
SKU: DCS-7124FX-R

DCS-7124FX-R - Arista DCS-7124FX-R 24x10GbE 480Gbps FPGA Switch | US IT Hardware

Product overview

The Arista DCS-7124FX-R is a high-performance 1RU Ethernet application switch designed for ultra-low latency data center environments. It features 24 ports of 1/10GbE SFP+ connectivity (16 standard + 8 FX ports directly connected to a programmable FPGA subsystem), delivering 480Gbps throughput and 360 million packets per second with sub-500 nanosecond latency across all packet sizes. The embedded FPGA with 6.2M gates, 50Mb SRAM, 8GB DDR3 ECC, and PCIe Gen2 interface enables custom inline processing, precision timing via onboard PPS input, and full integration with Arista EOS for monitoring via LANZ and ZTP. Dual-core x86 CPU with 4GB DRAM, 2GB flash, and 50GB SSD supports VM workloads and extensive logging. Layer 2/3/4 features include wire-speed forwarding, 16K IPv4 routes, OSPF/BGP, 16-way ECMP, ACLs, PFC, and DCBX for lossless fabrics. Rear-to-front airflow, hot-swap 1+1 PSUs, N+1 fans ensure reliability. Use cases span high-frequency trading, network packet capture, security appliances, and precision time applications requiring deterministic low jitter.

480Gbps throughput with 360Mpps forwarding capacity.
Sub-500 nanosecond latency for all packet sizes.
24x 1/10GbE SFP+ ports including 8 FPGA FX ports.
Embedded FPGA with 6.2M gates and 8GB DDR3 ECC.
Precision PPS clock input for low-jitter timing.
1+1 redundant PSUs and N+1 fans in 1RU chassis.

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-7124FX-R
Brand	Arista
Condition	New
QoS	PFC, DCBX, DSCP, Queuing/Shaping, Rate Limiting
Model	7124FX
Latency	Sub-500 ns
FPGA Specs	6.2M gates, 50Mb SRAM, 8GB DDR3 ECC, PCIe Gen2
Product Line	7000 Series
Product Type	Ethernet Application Switch
Layer 2 Features	VLAN, STP, LLDP, Port Mirroring, 802.3x, Jumbo 9216B, IGMP Snooping
Layer 3 Features	16K IPv4/4K IPv6 routes, OSPF, BGP, ECMP, PIM-SM, VRRP

Compatible systems

Optimized for Arista EOS ecosystems; broad SFP+ optics compatibility; FPGA requires dev kit for custom logic.

Arista EOS
Model: Any
Form factor: 1RU
Generation: All
Natively runs Arista EOS with full VM support.

Best for

Data Center Spine/Leaf
Deploys as low-latency top-of-rack switch with FPGA for inline analytics and custom traffic processing in scale-out fabrics.
High-Frequency Trading
Provides sub-500ns latency and precision clock for tick-to-trade applications with deterministic jitter control.
HPC Clustering
Supports 480Gbps non-blocking 10GbE for high-throughput compute node interconnects with ECMP load balancing.
Network Security
FPGA enables custom deep packet inspection and threat detection at wire speed on 8 dedicated FX ports.
Precision Time Sync
Onboard PPS input and low-jitter forwarding for PTP/IEEE 1588 timing distribution in telco/data center.
Packet Capture
50GB SSD and LANZ integration for high-fidelity traffic monitoring and forensic analysis at 360Mpps.

Details

Shipping, warranty & returns

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Throughput	480 Gbps
Packets per Second	360 Mpps

Fans	4x hot-swap N+1 redundant
Airflow	Rear-to-front
Operating Temperature	0 to 40C

Ports	24x 1/10GbE SFP+ (16 standard/8 FX)
USB Ports	1
Serial Console	1x RJ-45 RS-232
Management Port	1x 10/100/1000

Arista DCS-7124FX-R 24x10GbE 480Gbps FPGA Switch

Product overview

Featuring

Compatible systems

Best for

Details

Shipping, warranty & returns

Customer reviews

Storage

Processor

Network & Communication

Security

Power Consumption

Physical Characteristics

Environmental

Interface/Ports

Frequently asked questions