What is the switching capacity of the Arista DCS-7170-64C-R?

The DCS-7170-64C-R provides 12.8Tbps full-duplex switching capacity with 64x QSFP100 ports at wire speed. It supports 4.8Bpps forwarding, enabling non-blocking performance across all ports for spine layer aggregation in large-scale data centers.

What port configurations does it support?

Each of the 64 QSFP100 ports supports 100GbE, 40GbE, 4x10GbE, 4x25GbE, or 2x50GbE with hitless reconfiguration. This flexibility allows dense 128x10/25GbE or 32x40/100GbE setups without service interruption.

What cooling and power options are available?

Rear-to-front airflow variant with 4x N+1 hot-swap fans and 2x redundant platinum-rated AC PSUs. Dynamic temperature control ensures reliability under full load in 40°C environments.

Does it support advanced routing and virtualization?

Yes, includes OSPF, BGP, IS-IS, 128-way ECMP, VXLAN routing/bridging, EVPN, and VM Tracer for VMware integration. VRF and BFD provide scalable, resilient fabrics for cloud and enterprise deployments.

What monitoring features are included?

LANZ for microburst detection, DANZ mirroring, sFlow, and CloudVision for telemetry. Programmable pipeline enables custom visibility into congestion and latency down to 1us granularity.

Is it suitable for low-latency applications?

Offers sub-microsecond port-to-port latency with deep 64MB buffers and precise congestion management. Ideal for HPC, trading, and AI training clusters requiring deterministic performance.

DCS-7170-64C-R - Arista DCS-7170-64C-R 64x100GbE 12.8Tbps 2RU Switch

Name: Arista DCS-7170-64C-R 64x100GbE 12.8Tbps 2RU Switch
Brand: Arista
SKU: DCS-7170-64C-R

DCS-7170-64C-R - Arista DCS-7170-64C-R 64x100GbE 12.8Tbps 2RU Switch | US IT Hardware

Product overview

The Arista DCS-7170-64C-R is a high-performance, programmable 2RU data center switch featuring 64x QSFP100 ports delivering up to 12.8Tbps full-duplex throughput and 4.8Bpps forwarding. Each port supports flexible configurations including 100GbE, 40GbE, 4x10GbE, 4x25GbE, or 2x50GbE with hitless changes, ideal for dense spine layer deployments. Powered by Arista EOS, it offers advanced features like 128-way ECMP, VXLAN routing, CloudVision orchestration, and Zero Touch Provisioning for scalable cloud networks. Rear-to-front airflow with 4x hot-swap fans and dual redundant AC PSUs ensures reliability in demanding environments. Benefits include microsecond latency, deep buffers for microbursts, and P4 programmability for custom pipelines, enabling high-scale IP fabrics, HPC clusters, and service provider peering with resilient control plane and stateful fault repair.

12.8Tbps full-duplex switching capacity.
64x QSFP100 ports with 100/40/25/10GbE breakout.
Hitless port speed reconfiguration supported.
Rear-to-front airflow with redundant PSUs.
128-way ECMP for resilient load balancing.
P4 programmable pipeline for custom features.

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

Layer 2 Features
Manufacturer part #	DCS-7170-64C-R
Brand	Arista
Condition	New
CPU	Multi-core x86
Fans	4x N+1 Hot-swap
Model	7170-64C-R
Management	CloudVision, ZTP, SNMPv3, SSHv2, 1GbE Mgmt + Serial/USB
Product Line	7170 Series
Product Type	Data Center Switch
Packet Buffer	64MB shared
System Memory	Up to 64GB DRAM

Compatible systems

Native EOS compatibility with Arista leaf/spine, VMware vSphere, and standard 100G optics/cables.

Arista 7050X Series
Model: Leaf Switches
Form factor: 1RU
Generation: Current
Standard MLAG/VXLAN interop

Best for

Data Center Spine
High-density 100GbE aggregation for leaf-spine topologies with ECMP load balancing.
Cloud Networking
VXLAN overlay and EVPN for multi-tenant scale-out with CloudVision management.
IP Fabric
128-way ECMP and resilient hashing for non-blocking east-west traffic in Clos fabrics.
HPC Clusters
Low-latency 100GbE interconnects with RDMA support for compute-intensive workloads.
Service Provider
High-scale BGP peering and PIM multicast for edge aggregation and peering points.
Financial Trading
Microburst detection via LANZ and sub-microsecond forwarding for ultra-low latency.

Details

Shipping, warranty & returns

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Airflow	Rear-to-front
Humidity	5-95% non-condensing
Operating Temp	0-40°C

Arista DCS-7170-64C-R 64x100GbE 12.8Tbps 2RU Switch

Product overview

Featuring

Compatible systems

Best for

Details

Shipping, warranty & returns

Customer reviews

Network & Communication

Power Consumption

Physical Characteristics

Environmental

Interface/Ports

Frequently asked questions

Forwarding Rate	4.8Bpps
Switching Capacity	12.8Tbps full-duplex