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by Arista
Product Line: Arista 7150 Series
Product Type: Ultra Low Latency Switch
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Product Description

The DCS-7150S-24-CL-R Arista switch features 24 x 1/10GbE ports, delivering up to 1.28 terabits per second and supporting up to 960 million packets per second for efficient, high-speed data transmission. It ensures minimal delay with 350 nanosecond latency for both L2 and L3 forwarding, and incorporates DANZ Advanced Mirroring & TAP Aggregation for enhanced network visibility. Additionally, it offers Zero-touch provisioning (ZTP), N+1 redundant & hot-swappable fans, and 1+1 redundant & hot-swappable power supplies, ensuring reliable and continuous operation.

FAQs for the DCS-7150S-24-CL-R

  • What is the port configuration of the 7150S-24 model?
    The 7150S-24 model features 24 x 1/10GbE ports.
  • How does the 7150S-52 ensure precise time synchronization in networks?
    It utilizes IEEE 1588 Precision Time Protocol (PTP) in both boundary and transparent modes, along with an integrated high-precision oscillator.
  • What maximum throughput can both the 7150S-24 and 7150S-52 models achieve?
    They can achieve up to 1.28 terabits per second.
  • Describe the latency performance of these models.
    They offer low latency starting from 350 nanoseconds, with consistent latency for L2 and L3 forwarding across 1, 10, and 40GbE.
  • How do these switches handle network congestion and microbursts?
    They feature dynamic buffer allocation and LANZ microburst analysis for effective congestion management.
  • Can the 7150S series support high-density virtualization environments?
    Yes, with features like VM Tracer, DANZ Advanced Mirroring & TAP Aggregation, and support for sFlow® (RFC3176), they are well-suited for virtualization.
  • What are the energy efficiency features of the 7150S series?
    The series boasts a typical power draw from 3.5 W/port, 1+1 redundant & hot-swappable power supplies, and N+1 redundant & hot-swappable fans.
  • How does the 7150S series support network troubleshooting and analytics?
    With features like ultra-low latency NAT, MNAT, and DANZ Advanced Mirroring & TAP Aggregation, the series enhances network visibility and troubleshooting.
  • What provisioning and recovery options are available for these models?
    They support Zero-touch provisioning (ZTP) and can self-configure/recover from USB, simplifying deployment and maintenance.
  • How does the 7150S series accommodate different data center cooling strategies?
    It offers configurable front-to-rear or rear-to-front fan options to align with various cooling strategies.

Product Review

The Arista DCS-7150S-24-CL-R offers high-performance capabilities with up to 1.28 terabits per second throughput and low latency from 350 nanoseconds, ensuring efficient data processing and transport for demanding network environments. However, its advanced features such as DANZ for mirroring and TAP aggregation, dynamic buffer allocation, and LANZ microburst analysis require a steep learning curve and advanced network configuration knowledge. Additionally, the device's energy efficiency, with a typical power draw of 3.5 W/port, and its redundancy features, including hot-swappable power supplies and fans, enhance its reliability and operational cost-effectiveness in data centers.


The Arista DCS-7150S-24-CL-R is designed to meet the demands of high-performance, low-latency networks. It offers a range of features tailored for extensive network requirements, including data centers and high-frequency trading environments. This product overview focuses on the hardware specifications of the Arista DCS-7150S-24-CL-R, providing insights into its capabilities and design. At the core of the Arista DCS-7150S-24-CL-R are its port configurations. The series comes in two models: the 7150S-24, with 24 x 1/10GbE ports, and the 7150S-52, featuring 52 x 1/10GbE ports. This flexibility allows for deployment in various network sizes and scales, accommodating a wide range of network topologies and bandwidth requirements. The switch boasts an impressive throughput, capable of up to 1.28 terabits per second, and a forwarding rate of up to 960 million packets per second, ensuring that high-volume traffic can be managed efficiently without bottlenecks. The Arista DCS-7150S-24-CL-R achieves wire-speed Layer 2 and Layer 3 forwarding, maintaining consistent performance across all ports and traffic types. Notably, it offers exceptionally low latency, starting from 350 nanoseconds, regardless of whether the traffic is Layer 2 or Layer 3. This is critical for applications where every nanosecond counts, such as financial trading platforms. Moreover, the switch is engineered for optimal performance and reliability. It features dynamic buffer allocation, which optimizes memory use to maintain high throughput and low latency, even under unpredictable traffic patterns. The LANZ microburst analysis helps in identifying and mitigating network congestion, ensuring smooth operation.
  • IEEE 1588 Precision Time Protocol, providing high-precision clock synchronization for time-sensitive applications.
  • DANZ Advanced Mirroring & TAP Aggregation, enhancing network visibility and monitoring.
  • Zero-touch provisioning (ZTP), simplifying deployment and configuration processes for rapid network scaling.
The Arista DCS-7150S-24-CL-R also prioritizes energy efficiency and operational flexibility. It has a typical power draw from 3.5 W/port, making it an energy-efficient choice for enterprises looking to reduce operational costs. The switch supports 1+1 redundant and hot-swappable power supplies, along with N+1 redundant and hot-swappable fans. These features ensure uninterrupted operation and easy maintenance, minimizing downtime. Adaptability is further enhanced by the option for front-to-rear or rear-to-front fan configurations, accommodating different rack setups and cooling strategies. The switch also includes advanced features such as wire-speed low-latency network address translation, sFlow® for traffic sampling, and VM Tracer for virtual machine network integration. In summary, the Arista DCS-7150S-24-CL-R stands out for its high performance, low latency, and comprehensive feature set designed to meet the needs of demanding network environments. Its hardware specifications reflect a balance between power, efficiency, and versatility, making it a suitable choice for data centers, trading floors, and any application where network performance and reliability are paramount.


Model NumberArista DCS-7150S-24-CL-R
Port Configuration7150S-24: 24 ports 1/10GbE, 7150S-52: 52 ports 1/10GbE
Maximum Throughput1.28 Tbps
Maximum Packet Forwarding Rate960 Mpps
Layer 2 and 3 Forwarding CapabilityFull speed
Minimum LatencyStarting from 350 ns
Latency ConsistencyUniform across L2 and L3
Latency PerformanceOptimized for 1, 10, and 40GbE
Jitter PerformanceMinimized for both unicast and multicast
Buffer ManagementDynamic allocation
Microburst DetectionLANZ technology for analysis
Time SynchronizationIEEE 1588 PTP with high precision
Network Address TranslationUltra-low latency, including MNAT
Network MonitoringEnhanced with DANZ for mirroring and TAP aggregation
Traffic SamplingsFlow® according to RFC3176
ProvisioningAutomated with Zero-touch (ZTP)
Virtual Machine IntegrationVM Tracer capabilities
Configuration RecoveryAutomatic via USB
Power EfficiencyAverage 3.5 W per port
Power RedundancyDual, hot-swappable units
Cooling RedundancyModular, N+1 hot-swappable fans
Cooling Direction OptionChoice of front-to-rear or rear-to-front airflow
Network Address Translation SpeedFull wire-speed capability
Precision TimingIEEE 1588 PTP in both boundary and transparent modes
Oscillator PrecisionHigh accuracy integrated oscillator

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