Arista DCS-7500R2A-36CQ-LC AlgoMatch 36 Ports 100GbE QSFP100 Line Card

Outline of DCS-7500R2A-36CQ-LC 36-port 100GbE Line Card

The Arista DCS-7500R2A-36CQ-LC 7500R2 AlgoMatch 36 Port 100GbE QSFP100 Line Card is engineered for ultra-low latency, high-density cloud networking, and large-scale enterprise deployments. Designed for demanding data center infrastructures, this advanced line card delivers exceptional throughput, intelligent traffic management, and superior scalability for next-generation networking environments.

General Specification

• Manufacturer: Arista
• Part Number: DCS-7500R2A-36CQ-LC
• Device Type: Line Card

Technical Specification

• 36 high-density 100GbE QSFP100 ports
• Optimized for Arista 7500R2 switching systems
• Advanced AlgoMatch technology integration
• Ultra-low latency packet forwarding
• Cloud-scale performance and flexibility
• Enhanced routing and traffic visibility
• Ideal for hyperscale and enterprise data centers
• Reliable support for high-bandwidth applications
• Designed for spine-leaf network topologies
• Efficient thermal and power management

Benefits of AlgoMatch Architecture

• Enhanced ACL scalability
• Flexible packet classification
• Reduced hardware resource limitations
• Improved power efficiency
• Lower operational complexity
• Better traffic filtering performance
• Optimized routing policy management

Advantages of 100GbE Networking

• Faster application delivery
• Reduced network bottlenecks
• Lower latency for critical workloads
• Improved virtualization performance
• High-capacity data transport
• Support for AI and machine learning clusters
• Enhanced storage networking efficiency

Ideal Deployment Scenarios

• Large enterprise campuses
• Cloud hosting providers
• Multi-tenant data centers
• Financial trading platforms
• AI and HPC environments
• Service provider core networks
• Research and educational institutions

Performance-Oriented Design

• Consistent packet forwarding rates
• Low-latency traffic handling
• High throughput processing
• Efficient multicast support
• Reduced packet loss under heavy loads
• Reliable operation in demanding environments

Supported Connectivity Options

• QSFP100 optical transceivers
• Direct attach copper cables
• Breakout cable configurations
• Short-range and long-range fiber connectivity
• High-density aggregation deployments

Scalability Advantages

• Supports expanding workloads
• Simplifies infrastructure growth
• Handles increasing user demand
• Optimized for large-scale deployments
• Supports virtualization expansion
• Enables cloud migration initiatives

Operational Efficiency Benefits

• Reduced power requirements
• Optimized cooling efficiency
• Lower operational expenses
• Improved rack-level airflow
• Energy-conscious architecture

Network Management Advantages

• Real-time telemetry support
• Enhanced monitoring visibility
• Streamlined troubleshooting
• Automation-ready architecture
• Simplified operational workflows
• Improved infrastructure analytics

Integration Benefits

• Seamless compatibility with 7500R2 chassis
• Simplified deployment process
• Consistent operating system integration
• Reliable fabric connectivity
• Enterprise-grade hardware interoperability

Common Use Cases

• Artificial intelligence clusters
• Big data analytics platforms
• Video streaming infrastructures
• Large virtualization environments
• Software-defined storage systems
• Cloud-native application hosting
• Financial transaction processing
• Scientific computing environments

Main Advantages

• Massive 100GbE port density
• Advanced AlgoMatch capabilities
• Cloud-ready networking architecture
• Reliable low-latency operation
• High scalability for future growth
• Enhanced visibility and automation
• Optimized data center performance
• Flexible deployment options
• Efficient power and thermal management

Arista DCS-7500R2A-36CQ-LC AlgoMatch 36 Ports Line Card 

The Arista DCS-7500R2A-36CQ-LC 7500R2 Series AlgoMatch 36 Ports 100GbE QSFP100 Line Card is engineered for modern hyperscale networking environments that demand high-density 100GbE connectivity, deterministic forwarding behavior, ultra-low latency, and advanced traffic visibility. Designed for integration within the Arista 7500R2 modular switching platform, this line card provides enterprise-grade and cloud-scale performance capabilities for organizations building large data center fabrics, spine-leaf architectures, internet exchange infrastructures, and high-capacity aggregation networks.

Equipped with thirty-six QSFP100 interfaces, the module enables extensive 100 Gigabit Ethernet deployment across enterprise cores, hyperscale cloud environments, and service provider infrastructures. The advanced AlgoMatch technology embedded into the architecture enhances forwarding efficiency by improving lookup operations, route scaling, access control processing, and telemetry-driven packet analysis. This results in optimized network visibility and consistent application performance even under intense east-west traffic loads.

The modular design philosophy of the Arista 7500R2 Series allows network administrators to expand switching density while maintaining centralized management and operational consistency. The DCS-7500R2A-36CQ-LC line card complements this strategy by delivering substantial throughput and routing scalability in a compact modular form factor suitable for high-density chassis deployments.

High-Density 100GbE Connectivity for Modern Data Centers

Organizations transitioning toward software-defined networking, virtualization, and cloud-native application delivery require significantly higher bandwidth compared to traditional enterprise infrastructures. The Arista DCS-7500R2A-36CQ-LC addresses these demands through thirty-six dedicated 100GbE QSFP100 ports capable of supporting massive data transport requirements.

Each QSFP100 interface supports flexible deployment models, enabling organizations to interconnect spine switches, aggregation layers, compute clusters, and storage environments while preserving low-latency traffic delivery. The high port density minimizes rack consumption and reduces the need for additional switching hardware, which contributes to lower operational complexity and simplified cable management.

The platform is particularly valuable in environments supporting artificial intelligence workloads, high-frequency analytics, large-scale virtualization clusters, distributed storage systems, and content delivery networks. As application workloads continue to increase bandwidth utilization, the need for predictable high-speed connectivity becomes essential for maintaining application responsiveness and service continuity.

AlgoMatch Technology and Advanced Traffic Processing

AlgoMatch technology represents one of the defining characteristics of the Arista 7500R2 switching ecosystem. Integrated directly into the forwarding architecture of the DCS-7500R2A-36CQ-LC line card, AlgoMatch enhances route processing and traffic classification capabilities through efficient lookup algorithms optimized for modern networking requirements.

The architecture supports extensive forwarding table scalability, allowing organizations to manage large routing environments without sacrificing forwarding efficiency. This becomes particularly important in multi-tenant cloud environments where thousands of routes, policies, and segmentation rules must coexist within the same infrastructure.

AlgoMatch also contributes to advanced telemetry and network analytics capabilities by accelerating traffic visibility functions and supporting granular packet inspection processes. The improved matching efficiency reduces resource overhead associated with large-scale policy enforcement, helping administrators maintain consistent security and routing performance.

Enhanced ACL and Policy Scaling

Access control list scalability remains a critical requirement for modern enterprise and service provider networks. The DCS-7500R2A-36CQ-LC line card supports extensive ACL processing capabilities that enable organizations to implement detailed security policies without negatively impacting switching performance.

By leveraging optimized lookup algorithms, the module maintains efficient policy enforcement even when managing large-scale rule sets. This capability is particularly important for segmented cloud environments, zero-trust security frameworks, and multi-tenant deployments requiring granular traffic isolation.

Efficient Route Table Management

Large-scale routing environments require robust route table scalability to support expanding network architectures. The line card supports extensive IPv4 and IPv6 routing tables, enabling deployment in internet peering infrastructures, cloud service provider backbones, and enterprise WAN aggregation environments.

The routing architecture supports deterministic forwarding behavior while maintaining low latency across large route databases. This improves application delivery consistency and enhances network convergence performance during topology changes or failover events.

Scalable Spine-Leaf Deployment Capabilities

The Arista DCS-7500R2A-36CQ-LC line card is optimized for spine-layer deployments in large-scale leaf-spine architectures. High-density 100GbE interfaces allow organizations to aggregate substantial east-west traffic volumes while preserving non-blocking throughput characteristics across the data center fabric.

Modern application architectures frequently depend on microservices, distributed databases, container orchestration platforms, and virtual machine mobility. These workloads generate intensive east-west traffic patterns that traditional network infrastructures struggle to accommodate. The DCS-7500R2A-36CQ-LC enables scalable fabric expansion without introducing excessive oversubscription or latency bottlenecks.

Its compatibility with Arista EOS software further enhances deployment flexibility by supporting automation frameworks, centralized provisioning, programmable APIs, and telemetry-driven management systems. Administrators can simplify fabric deployment processes while improving operational visibility across the infrastructure.

Support for Cloud Networking Environments

Cloud computing infrastructures require resilient and scalable networking hardware capable of supporting rapid workload expansion. The DCS-7500R2A-36CQ-LC is well suited for private cloud, hybrid cloud, and hyperscale cloud deployments due to its high throughput capabilities and programmable network architecture.

Cloud operators can utilize the line card to support virtualized compute environments, distributed application clusters, and high-performance storage fabrics. The module provides the bandwidth and forwarding scalability necessary for maintaining consistent workload performance under variable traffic conditions.

Data Center Interconnect Applications

Many enterprises and service providers require reliable high-speed interconnectivity between geographically separated data centers. The 100GbE QSFP100 interfaces available on the DCS-7500R2A-36CQ-LC support high-capacity data center interconnect implementations designed for replication traffic, disaster recovery synchronization, workload mobility, and multi-site cloud architectures.

The platform enables organizations to establish low-latency interconnect paths while supporting large-scale traffic aggregation across regional or global infrastructures. This improves application resilience and supports continuous business operations across distributed environments.

Performance Optimization and Throughput Efficiency

The Arista DCS-7500R2A-36CQ-LC is designed to deliver substantial switching throughput while maintaining low latency and predictable forwarding behavior. High-performance switching ASICs integrated within the line card architecture enable efficient packet processing across all interfaces simultaneously.

The module supports wire-speed forwarding for demanding traffic loads, ensuring that network congestion does not negatively impact application responsiveness. This capability is particularly important in latency-sensitive environments such as financial trading systems, real-time analytics platforms, and large-scale distributed storage environments.

Low-Latency Packet Handling

Applications requiring real-time responsiveness depend on low-latency packet forwarding across the network infrastructure. The DCS-7500R2A-36CQ-LC minimizes forwarding delays through optimized hardware acceleration and efficient traffic processing mechanisms.

Low-latency switching performance improves overall application efficiency by reducing communication delays between distributed systems, compute clusters, and storage arrays. This is especially beneficial for machine learning environments, high-performance computing infrastructures, and media streaming platforms.

Wire-Speed Traffic Processing

Wire-speed forwarding ensures that the line card can process packets at full interface capacity without introducing throughput limitations. The DCS-7500R2A-36CQ-LC maintains forwarding consistency even under heavy traffic conditions involving multiple simultaneous 100GbE data streams.

This capability allows enterprises to deploy dense switching infrastructures capable of supporting extensive virtualization, storage traffic, and high-volume application communications without performance degradation.

High Buffer Capacity for Traffic Bursts

Temporary traffic bursts are common in cloud environments, virtualization clusters, and distributed application infrastructures. The line card incorporates advanced buffering mechanisms that help absorb traffic spikes while minimizing packet loss and preserving application stability.

Improved buffering efficiency contributes to enhanced congestion management and more reliable workload performance across dynamic traffic conditions.

Integration with Arista EOS Software

The DCS-7500R2A-36CQ-LC line card operates within the Arista EOS ecosystem, providing organizations with access to a highly programmable and resilient network operating environment. EOS delivers advanced automation capabilities, network telemetry functions, and operational consistency across the switching infrastructure.

Through EOS integration, administrators can implement automated provisioning workflows, centralized configuration management, and streaming telemetry analytics. This simplifies operational processes while improving infrastructure scalability and troubleshooting efficiency.

Programmable Network Automation

Modern data center operations increasingly rely on infrastructure automation to reduce configuration complexity and accelerate service deployment. EOS supports extensive programmability through open APIs, scripting frameworks, and automation integrations compatible with orchestration platforms.

The DCS-7500R2A-36CQ-LC benefits from these capabilities by enabling rapid deployment of network policies, routing configurations, and telemetry-driven management workflows. Automation reduces manual intervention and helps organizations maintain consistent configuration standards across large-scale deployments.

Advanced Telemetry and Visibility

Operational visibility is essential for maintaining reliable network performance and identifying potential bottlenecks before they affect application availability. EOS provides advanced telemetry functions that allow administrators to collect detailed traffic analytics, routing information, and hardware performance metrics.

The integration of telemetry-driven visibility with AlgoMatch technology enhances network intelligence by enabling more granular traffic monitoring and policy analysis. This supports proactive infrastructure optimization and accelerates issue resolution processes.

Enterprise Core and Service Provider Applications

The Arista DCS-7500R2A-36CQ-LC is suitable for enterprise core deployments and carrier-grade networking environments requiring substantial routing scale and high-speed aggregation. Organizations managing large campus cores, internet peering infrastructures, and metropolitan transport environments can utilize the module to support high-capacity traffic flows while maintaining operational efficiency.

The scalability characteristics of the line card enable support for expanding user populations, bandwidth-intensive applications, and evolving network segmentation strategies. Enterprises can consolidate high-density switching functions into modular chassis deployments while preserving long-term infrastructure scalability.

Internet Exchange and Peering Environments

Internet exchange operators and peering providers require reliable high-capacity switching infrastructures capable of supporting extensive traffic volumes across multiple participants. The thirty-six 100GbE interfaces available on the DCS-7500R2A-36CQ-LC allow operators to establish dense peering environments while maintaining low-latency forwarding performance.

The platform’s route scalability and deterministic forwarding capabilities contribute to stable traffic exchange operations across highly dynamic routing environments.

Large Enterprise Aggregation Networks

Large enterprises frequently operate distributed campus environments requiring centralized aggregation layers for user connectivity, application delivery, and WAN integration. The DCS-7500R2A-36CQ-LC provides sufficient bandwidth density to aggregate extensive access-layer traffic while supporting future scalability requirements.

Its modular deployment model allows enterprises to expand network capacity incrementally without replacing existing chassis infrastructure, helping reduce long-term capital expenditures.

Reliability, Redundancy, and Operational Stability

Reliability is a critical consideration for modern networking infrastructures supporting mission-critical applications and continuous business operations. The Arista DCS-7500R2A-36CQ-LC is engineered to operate within highly available modular chassis environments featuring redundant supervisors, power supplies, and cooling systems.

The line card architecture supports resilient forwarding operations and rapid convergence mechanisms designed to minimize downtime during hardware failures or network topology changes. This contributes to improved service continuity and reduced operational risk.

Support for High Availability Architectures

High availability networking environments depend on resilient hardware platforms capable of maintaining traffic forwarding during maintenance events and unexpected failures. The DCS-7500R2A-36CQ-LC integrates with the high-availability capabilities of the Arista 7500R2 Series platform to support continuous operational performance.

Redundant system components and fault-tolerant software processes help maintain network stability while reducing the impact of infrastructure disruptions on connected applications and services.

Operational Consistency Across Modular Deployments

Large modular switching environments require consistent operational behavior across multiple line cards and chassis deployments. The DCS-7500R2A-36CQ-LC supports standardized management, provisioning, and monitoring processes that simplify large-scale network administration.

Operational consistency improves troubleshooting efficiency and helps organizations maintain uniform infrastructure policies across distributed networking environments.

Future-Ready Infrastructure Expansion

As enterprise and cloud networking requirements continue evolving, organizations must deploy infrastructure capable of supporting future bandwidth growth and emerging application demands. The Arista DCS-7500R2A-36CQ-LC provides a scalable foundation for next-generation networking initiatives involving artificial intelligence, machine learning, edge computing, and distributed application delivery.

The high-density 100GbE architecture allows organizations to scale bandwidth capacity without excessive hardware sprawl, helping improve energy efficiency and optimize rack utilization within modern data center environments.

Support for Evolving Workload Demands

Emerging workloads such as AI model training, large-scale analytics, and real-time data processing generate substantial network traffic volumes requiring advanced switching infrastructure. The DCS-7500R2A-36CQ-LC delivers the throughput and forwarding performance necessary to support these evolving operational requirements.

Its scalable design enables organizations to accommodate increasing traffic loads while preserving low-latency communication between compute resources, storage arrays, and distributed processing systems.