QSFP-100G-DZ2-31 Arista 100G QSFP DWDM XCVR Transceiver

Arista 100G QSFP DWDM XCVR Transceiver

The Arista QSFP-100G-DZ2-31 is a high-performance DWDM transceiver designed for reliable data transmission across long distances. This optical module ensures seamless connectivity for modern networking infrastructures.

General Details

• Manufacturer: Arista Networks
• Model Number: QSFP-100G-DZ2-31
• Category: Optical Transceiver

Technical Specifications

Performance Metrics

• Data Throughput: 100 Gbps aggregate
• Form Factor: QSFP28 (Quad Small Form-factor Pluggable)
• Optical Wavelength: 1550 nm (ITU Channel 31)
• Reach Capability: Up to 40 km over Single-Mode Fiber (SMF)

Interface & Connectivity

• Connector Type: Duplex LC interface
• Protocol Compliance: SFF-8636 standard for monitoring and diagnostics

Environmental Conditions

Operating Range

• Temperature: 0°C to 70°C (32°F to 158°F)

Storage Range

• Temperature: -40°C to 85°C (-40°F to 185°F)

QSFP-100G-DZ2-31 100G QSFP DWDM Transceiver Overview

The Arista QSFP-100G-DZ2-31 100G QSFP DWDM XCVR Transceiver is engineered to meet the stringent demands of modern data center interconnects, service provider networks, and high-capacity enterprise backbones. Designed for compatibility with switching and routing platforms from :contentReference[oaicite:0]{index=0}, this advanced optical module delivers high-speed 100 Gigabit Ethernet connectivity over Dense Wavelength Division Multiplexing infrastructure. It enables seamless integration into high-density network environments where bandwidth, reliability, and scalability are critical to operational success.

This 100G QSFP DWDM transceiver leverages coherent optical technology and precision wavelength tuning to facilitate long-haul and metro data transmission. The DZ2-31 wavelength designation ensures deployment on a specific ITU channel within the DWDM grid, enabling efficient spectral management across fiber infrastructure. With growing data consumption driven by cloud computing, virtualization, AI workloads, and multimedia applications, such optical solutions play a central role in ensuring continuous, high-capacity connectivity.

Advanced 100G Optical Performance and DWDM Integration

Optimized for Dense Wavelength Division Multiplexing

The QSFP-100G-DZ2-31 module operates within a defined DWDM channel spacing to allow multiple wavelengths to coexist on a single fiber pair. By assigning a specific wavelength within the C-band, this transceiver ensures minimal interference and high spectral efficiency. DWDM technology allows network operators to multiply fiber capacity without deploying additional physical infrastructure, which significantly reduces capital expenditure while increasing return on investment.

The transceiver’s ability to function within established ITU-T channel plans ensures interoperability within existing DWDM systems. This capability makes it ideal for metro aggregation layers, data center interconnects, and regional transport networks that demand stable and interference-resistant optical transmission over extended distances.

High-Speed 100 Gigabit Ethernet Transmission

Delivering 100 Gigabit Ethernet throughput, the QSFP-100G-DZ2-31 provides a substantial increase in data transport capacity compared to legacy 10G or 40G solutions. This enhanced bandwidth supports latency-sensitive applications, large-scale virtualization platforms, and high-volume storage replication processes. As organizations increasingly migrate toward hyper-converged infrastructures, 100G connectivity ensures that network backbones remain unconstrained by bandwidth limitations.

The transceiver integrates advanced modulation and forward error correction techniques to maintain signal integrity over long distances. These technologies minimize bit error rates and enhance overall transmission reliability, even across spans that involve optical amplifiers and multiplexing equipment.

Precision Wavelength Allocation

The DZ2-31 channel specification corresponds to a particular DWDM wavelength on the ITU grid, ensuring alignment with optical multiplexers and demultiplexers. Precise wavelength tuning is critical in DWDM environments, where dozens of channels may coexist within a narrow spectral band. The transceiver’s manufacturing calibration guarantees adherence to wavelength tolerances required for stable long-distance transmission.

By maintaining strict spectral accuracy, the module reduces cross-channel interference and supports dense optical deployments without degradation in performance. This reliability is essential for telecom providers and cloud operators managing high-volume traffic across metropolitan and regional fiber networks.

Data Center Interconnect and Enterprise Applications

Metro and Regional Connectivity

The Arista QSFP-100G-DZ2-31 is well-suited for metro area network interconnections where 100G capacity is required over extended fiber spans. Its compatibility with DWDM amplification systems enables deployment over distances that exceed typical short-reach transceivers. This makes it a strategic solution for linking geographically separated data centers, disaster recovery sites, and regional hubs.

Organizations operating distributed computing environments benefit from such optical modules by ensuring high-speed synchronization between facilities. This is particularly important for financial services, healthcare systems, and large-scale content providers where data consistency and rapid replication are mandatory.

Cloud Infrastructure and Hyperscale Environments

Hyperscale cloud operators require consistent, high-throughput optical interconnects to support virtual machine migration, container orchestration, and high-performance storage fabrics. The QSFP-100G-DZ2-31 aligns with these needs by delivering robust 100G bandwidth across DWDM channels. Its integration into spine-leaf architectures allows traffic to flow seamlessly between aggregation layers and core transport systems.

The module’s efficiency contributes to maintaining low latency and predictable performance across high-demand workloads. In multi-tenant cloud environments, this level of performance ensures service-level agreements are upheld without congestion or packet loss.

Integration into Modular Network Architectures

Modern networks rely on modular design principles, enabling flexible growth and reconfiguration. The hot-pluggable QSFP form factor supports rapid deployment and replacement, reducing maintenance windows and operational disruption. Network engineers can quickly scale capacity by installing additional modules without altering switch hardware.

This modularity is particularly valuable in environments where uptime is critical. Service providers and enterprises alike benefit from the ability to adapt network capacity in response to evolving demand patterns.

Thermal Stability for Continuous Operation

Thermal management is critical in high-performance optical modules. The transceiver incorporates design elements that dissipate heat effectively, maintaining stable operation even in densely populated chassis. Proper thermal regulation prevents signal degradation and ensures consistent optical output.

In data centers with constrained airflow, such stability is essential to maintaining predictable network behavior. The QSFP-100G-DZ2-31’s design supports extended operating conditions without compromising throughput or reliability.

Compatibility and Deployment Considerations

Seamless Integration with Arista Platforms

Designed for native compatibility with Arista switching systems, the QSFP-100G-DZ2-31 ensures streamlined configuration and management. Automatic recognition by supported network operating systems simplifies installation procedures and reduces deployment time. This integration enhances operational efficiency and reduces the potential for configuration errors.

By aligning firmware, diagnostics, and hardware standards, the module ensures optimal interoperability within Arista-based infrastructures. Network administrators can confidently deploy the transceiver knowing it aligns with system requirements and performance benchmarks.

Interoperability within DWDM Ecosystems

Beyond platform compatibility, the transceiver is engineered to function within established DWDM ecosystems that include multiplexers, amplifiers, and optical line systems. Its adherence to ITU channel standards supports smooth integration into multi-vendor optical networks, provided compatibility guidelines are observed.

This flexibility allows service providers and enterprises to expand capacity within existing optical frameworks without disrupting established traffic flows. The result is a scalable and cost-effective path to 100G connectivity.

Resilient Network Design Enablement

High-capacity optical modules contribute to resilient network architectures by enabling redundant pathways and ring topologies. With 100G DWDM connectivity, organizations can design failover systems that reroute traffic seamlessly in the event of fiber cuts or equipment failure.

The QSFP-100G-DZ2-31 supports these resilience strategies by providing dependable high-speed links that integrate into automated failover and traffic engineering mechanisms. This capability enhances business continuity and minimizes service interruptions.

Large Enterprises and Government Networks

Enterprises with distributed campuses and government agencies managing secure communication networks benefit from the stable, high-speed connectivity offered by this transceiver. Secure data replication, centralized application hosting, and real-time analytics require robust backbone infrastructure.

The QSFP-100G-DZ2-31 enables these institutions to maintain high availability and operational continuity while meeting compliance and performance standards.

Financial Services and High-Frequency Trading

In financial markets where microseconds matter, consistent and low-latency data transmission is crucial. High-capacity DWDM modules such as the QSFP-100G-DZ2-31 support rapid data exchange between trading centers and data repositories. Reliable optical performance ensures minimal packet loss and optimal throughput.

This level of connectivity underpins mission-critical trading operations and risk management systems, reinforcing the importance of advanced optical transceivers in financial infrastructures.

Optical Reach and Channel Allocation

Engineered for DWDM deployment, the module operates on a designated ITU channel within the C-band spectrum. When combined with appropriate optical amplification and dispersion management systems, it supports extended reach suitable for metro and regional interconnect applications.

Environmental and Operational Parameters

The module is manufactured to operate within specified temperature ranges common to enterprise and carrier-grade installations. Compliance with relevant optical safety and electromagnetic standards ensures safe deployment in professional networking environments.

Enhancing Network Efficiency with 100G DWDM Technology

Bandwidth Consolidation and Traffic Aggregation

Network architectures increasingly depend on traffic aggregation strategies that consolidate multiple lower-speed links into high-capacity backbones. The QSFP-100G-DZ2-31 facilitates this approach by providing a powerful 100G uplink capable of handling aggregated data streams from access and distribution layers.

This consolidation improves traffic management efficiency and reduces complexity in core network segments. By centralizing high-volume traffic onto DWDM channels, operators maintain simplified routing policies and enhanced scalability.