• Silver-colored arista dcs-7388-16cd2 server rack with 16-port 100g 200g qsfp56 qsfp28 green-lit components
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Arista

Arista DCS-7388-16CD2 | 7388X5 16-Port 100G/200G Module, QSFP56/QSFP28

DCS-7388-16CD2

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Description

The Arista DCS-7388-16CD2 is a line card module designed for the 7388X5 Series modular chassis, delivering 16 ports of flexible 100G/200G Ethernet connectivity using QSFP28 and QSFP56 optics. Ideal for hyperscale cloud, AI/ML, and high-performance data center spine and leaf deployments, this module supports backward compatibility with existing 100G infrastructure while enabling smooth migration to 200G. The module delivers 3.2 Tbps of bandwidth per slot, ensuring low-latency, wire-speed performance for data-intensive workloads in modern multi-tier networks.

Features

Wire-speed Layer 2 and Layer 3 packet forwarding with ultra-low latency
- Advanced VXLAN gateway capabilities for overlay network integration
- BGP, OSPF, EVPN, and multicast routing protocols
- Integrated Arista LANZ (Latency Analyzer) for real-time micro-burst and congestion monitoring
- Deep buffer architecture for handling traffic bursts in high-speed environments
- Support for ECMP, link aggregation, and redundant topologies
- Comprehensive QoS and traffic shaping for prioritized workloads
- Zero Touch Provisioning (ZTP) for simplified deployment
- Inline telemetry and time stamping for granular visibility
- Hot-swappable design for maintenance without downtime
- CloudVision integration for centralized network automation and analytics
- Flexible optics support including SR, LR, DAC, and AOC for varied distance requirements

Warranty

All products sold by XS Network Tech include a 12-month warranty on both new and used items. Our in-house technical team thoroughly tests used hardware prior to sale to ensure enterprise-grade reliability.

All technical data should be verified on the manufacturer data sheets.

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Technical Specifications

FAQs

Technical Specifications

16 x 100G/200GbE QSFP28/QSFP56-DD ports
- Port capacity: 3.2 Tbps per module
- Compatible with Arista 7388X5 Series modular chassis (8-slot, 4RU)
- Supports QSFP28 (100G) and QSFP56 (200G) optics and DAC/AOC cables
- Hot-swappable line card module (field replaceable)
- Layer 2 and Layer 3 switching with wire-speed forwarding
- Single high-capacity packet processor architecture (25.6 Tbps system capacity)
- Integrated deep buffering for congestion management
- EOS (Extensible Operating System) support with advanced routing and VXLAN
- Front-to-rear or rear-to-front airflow configurations
- Backward compatible with 100G optics for migration flexibility

FAQs

Q: Is the DCS-7388-16CD2 compatible with 100G optics?
A: Yes, the DCS-7388-16CD2 module supports both 100G QSFP28 and 200G QSFP56 optics, providing backward compatibility with existing 100G infrastructure and enabling flexible migration to 200G connectivity.

Q: What chassis is required for the DCS-7388-16CD2 module?
A: This line card module is designed exclusively for the Arista 7388X5 Series modular chassis, which features 8 I/O module slots in a compact 4RU form factor and delivers 25.6 Tbps of system switching capacity.

Q: What deployment scenarios are ideal for this module?
A: The DCS-7388-16CD2 is optimized for hyperscale cloud environments, AI and machine learning clusters, high-radix spine-leaf data center fabrics, and I/O-intensive applications requiring consistent low latency and high throughput.

Q: Does the module support MACsec encryption?
A: The DCS-7388-16CD2 does not include MACsec. For MACsec-enabled 200G/400G connectivity, consider the DCS-7388-8D module which provides 8 x 400G QSFP-DD ports with MACsec support.

Q: What licensing is required for advanced features?
A: The base EOS Enhanced license is required for routing features like BGP, OSPF, and multicast. The EOS Flex-route Lite license adds BGP-EVPN for VXLAN environments. CloudVision subscriptions provide advanced automation and telemetry capabilities.

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