DCS-7300X-32Q-LC Arista 7300X QSFP+ 32 Ports Gigabit Ethernet Line Card

Arista DCS-7300X-32Q-LC 7300X Series Ethernet Line Card

The Arista DCS-7300X-32Q-LC line card is engineered for enterprise-grade and hyperscale data center deployments that demand ultra-low latency, high bandwidth density, and scalable Layer 2 and Layer 3 networking performance. Designed specifically for the Arista 7300X modular switching platform, this 32-port 40GBase-X QSFP+ Gigabit Ethernet line card provides advanced switching capabilities suitable for cloud networking infrastructures, spine-leaf architectures, virtualization clusters, and software-defined networking environments.

The modular structure of the 7300X Series enables organizations to scale network fabrics efficiently while maintaining predictable performance and operational simplicity. The DCS-7300X-32Q-LC module supports high-capacity forwarding and wire-speed packet processing across all interfaces, allowing modern data centers to accommodate east-west traffic patterns generated by virtualization, distributed storage systems, and high-performance computing applications.

32-Port 40G QSFP+ Interface Density

The Arista DCS-7300X-32Q-LC integrates thirty-two dedicated QSFP+ interfaces optimized for 40 Gigabit Ethernet connectivity. This dense port configuration allows network administrators to maximize rack-level throughput while reducing cabling complexity and conserving chassis slot utilization. Each QSFP+ interface supports high-speed optical and direct attach cable connectivity, enabling flexible deployment across multiple data center topologies.

High-density port configurations are critical for modern switching infrastructures where scalability and efficient rack space utilization are essential. The 32-port architecture enables organizations to aggregate large numbers of servers, storage nodes, or leaf switches into a consolidated modular chassis environment while maintaining consistent low-latency performance.

Optimized Port Scalability

The DCS-7300X-32Q-LC line card delivers scalable network expansion capabilities by enabling modular port growth without replacing the entire switching platform. Organizations can expand switching capacity incrementally according to evolving workload demands, making the platform ideal for rapidly growing enterprise and cloud environments.

Each QSFP+ interface supports high-speed Ethernet transport for bandwidth-intensive workloads including virtualization clusters, distributed databases, AI processing environments, and cloud-native applications. The ability to scale network density within a modular architecture simplifies infrastructure planning and minimizes operational disruption during network expansion projects.

Support for High-Speed Ethernet Connectivity

The line card supports high-performance Ethernet transport technologies compatible with modern optical transceivers and direct attach copper solutions. This flexibility enables organizations to deploy the module across short-range, medium-range, and long-range connectivity scenarios depending on infrastructure requirements.

Support for 40G Ethernet uplinks improves application responsiveness and minimizes bottlenecks within high-throughput environments. The architecture is suitable for data center interconnects, aggregation layers, core switching deployments, and virtualization fabrics requiring deterministic performance.

Modular Design for Arista 7300X Chassis

The DCS-7300X-32Q-LC is purpose-built for integration with the Arista 7300X Series modular chassis ecosystem. The modular approach allows enterprises to customize network infrastructures according to workload requirements while maintaining centralized management and operational consistency.

Unlike fixed-configuration switches, modular systems provide greater adaptability for evolving network environments. Administrators can combine multiple line card types, supervisor modules, and fabric modules within a single chassis to create highly customized networking solutions optimized for specific workloads.

Flexible Chassis Deployment

The Arista 7300X Series supports deployment in enterprise campuses, cloud data centers, service provider infrastructures, and multi-tenant environments. The DCS-7300X-32Q-LC complements these deployments by providing high-bandwidth 40GbE connectivity with exceptional forwarding performance and low latency characteristics.

Its modular compatibility allows organizations to align hardware investments with business growth while reducing long-term infrastructure replacement costs. Incremental scalability improves budgeting flexibility and simplifies future network modernization initiatives.

High Availability Integration

Within the 7300X chassis ecosystem, the line card operates alongside redundant supervisors, power supplies, and fabric modules to ensure continuous operational availability. This redundancy framework enhances resiliency and minimizes the risk of service interruption in mission-critical environments.

High-availability network architectures are essential for financial institutions, cloud hosting providers, telecommunications infrastructures, and enterprise data centers where downtime can significantly impact operational continuity.

Advanced Data Center Networking Performance

The Arista DCS-7300X-32Q-LC is optimized for high-performance switching environments that require deterministic latency, rapid packet forwarding, and scalable throughput. The line card supports data center architectures designed around modern application workloads and virtualized computing environments.

Low-Latency

Low latency is a critical requirement for applications involving distributed computing, real-time analytics, financial transactions, and clustered database environments. The DCS-7300X-32Q-LC utilizes high-performance forwarding silicon engineered to minimize packet traversal delays and optimize traffic handling efficiency.

Consistent latency performance improves workload responsiveness and supports demanding enterprise applications that rely on rapid inter-server communication. In spine-leaf data center architectures, low-latency switching contributes directly to improved application performance and enhanced user experiences.

Wire-Speed Switching Capabilities

The line card supports wire-speed forwarding across all QSFP+ interfaces simultaneously, enabling maximum utilization of available bandwidth resources without introducing performance bottlenecks. Wire-speed performance is particularly important in virtualization-heavy infrastructures where traffic volumes fluctuate dynamically.

By maintaining non-blocking throughput across interfaces, the DCS-7300X-32Q-LC ensures consistent network behavior under heavy traffic loads. This capability is beneficial for cloud service providers, enterprise virtualization clusters, and large-scale analytics environments.

Efficient Traffic Handling

Advanced packet buffering and traffic scheduling technologies help maintain network stability during congestion events and burst traffic conditions. Efficient traffic handling improves application reliability and supports quality of service requirements across mixed workload environments.

The line card is capable of supporting high-performance multicast, unicast, and broadcast traffic scenarios commonly encountered in modern data center deployments. Enhanced traffic optimization mechanisms improve operational consistency while minimizing packet loss.

Support for Spine-Leaf Architectures

The DCS-7300X-32Q-LC is well suited for spine-leaf networking models commonly implemented within hyperscale and enterprise data centers. Spine-leaf architectures provide predictable latency, simplified scalability, and high bandwidth availability across interconnected compute resources.

In spine deployments, the 40GbE QSFP+ interfaces enable rapid interconnection between leaf switches and aggregation layers. The dense port configuration helps reduce chassis footprint requirements while maximizing overall switching capacity.

Cloud Infrastructure Compatibility

Cloud networking environments require scalable switching infrastructures capable of supporting dynamic workload allocation, multi-tenancy, and automated orchestration frameworks. The line card supports these requirements through high-density connectivity and compatibility with advanced network automation capabilities.

Its integration within Arista EOS-driven environments allows organizations to automate provisioning, configuration management, monitoring, and network analytics across cloud infrastructures.

Enterprise and Cloud Deployment Scenarios

The Arista DCS-7300X-32Q-LC is designed for diverse deployment scenarios requiring scalable, resilient, and high-performance Ethernet connectivity. Its modular flexibility and dense QSFP+ architecture make it suitable for multiple enterprise and hyperscale applications.

Large Enterprise Data Centers

Enterprise organizations rely on scalable switching infrastructures to support virtualization platforms, application hosting environments, private cloud initiatives, and business continuity operations. The DCS-7300X-32Q-LC provides the bandwidth and scalability necessary for these workloads.

Its 40GbE connectivity enables rapid communication between servers, storage systems, and aggregation layers while maintaining operational efficiency across complex network topologies.

Virtualization Infrastructure

Virtualized environments generate dynamic traffic flows that require low-latency, high-throughput switching capabilities. The DCS-7300X-32Q-LC supports these environments by delivering consistent forwarding performance across virtual machine clusters and hypervisor platforms.

High-density 40GbE interfaces improve workload mobility and enhance virtual machine migration performance within large-scale virtualization deployments.

Storage Networking Integration

Modern storage architectures rely heavily on high-speed Ethernet transport for distributed storage systems, backup environments, and hyper-converged infrastructures. The line card supports these requirements through scalable bandwidth availability and efficient traffic handling.

Support for storage-intensive applications helps organizations maintain high data availability and rapid access performance within enterprise infrastructures.

Multi-Tenant Network Segmentation

Cloud environments often require secure traffic segmentation and scalable tenant isolation. The line card supports these requirements through advanced Layer 2 and Layer 3 networking features integrated within the Arista EOS platform.

Secure segmentation capabilities help maintain tenant isolation while supporting scalable cloud service delivery across shared infrastructures.

Hardware Reliability and Operational Efficiency

The DCS-7300X-32Q-LC is engineered for continuous operation within demanding enterprise and cloud environments. Hardware reliability and energy-efficient design contribute to lower operational costs and improved long-term infrastructure stability.

Reliability

Arista networking hardware is designed to support mission-critical deployments requiring consistent uptime and predictable performance. The DCS-7300X-32Q-LC incorporates enterprise-grade components optimized for high availability operation.

Reliable hardware performance minimizes operational disruption and supports continuous service delivery across critical infrastructure environments.

Redundant Infrastructure

The modular 7300X chassis platform supports redundant supervisors, power systems, and cooling architectures that enhance fault tolerance and improve overall infrastructure resiliency.

Redundancy features help organizations maintain operational continuity during hardware maintenance, power events, or component failures.

Thermal Optimization

Efficient airflow and thermal management technologies contribute to stable performance under heavy workloads. Proper thermal regulation improves component longevity and ensures reliable operation within dense data center environments.

The DCS-7300X-32Q-LC is engineered to operate efficiently within high-density racks where thermal conditions require optimized cooling strategies.

Energy-Efficient Network Design

Energy efficiency is increasingly important within modern data centers where operational costs and sustainability initiatives influence infrastructure decisions. The DCS-7300X-32Q-LC incorporates power-efficient switching technologies designed to optimize performance-per-watt ratios.

Efficient power utilization contributes to reduced cooling requirements and lower long-term operating expenses within large-scale deployments.

Optimized Power Consumption

The line card is engineered to deliver high switching performance while minimizing unnecessary energy usage. Optimized power efficiency helps organizations improve data center sustainability metrics and operational economics.

Reduced power consumption also enables higher rack density without exceeding facility power limitations.