• Gray metal server rack housing arista dcs-7300x3-32c-lc 32-port 100gbe qsfp line card module slots
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Arista

Arista DCS-7300X3-32C-LC | 7300X3 32-Port 100GbE QSFP Line Card Module

DCS-7300X3-32C-LC

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Description

The Arista DCS-7300X3-32C-LC is a high-density 32-port 100 Gigabit Ethernet QSFP line card designed for the 7300X3 Series modular data center switches. Each line card delivers 6.4Tbps of throughput with wire-speed Layer 2/3/4 forwarding and supports flexible breakout configurations for 10GbE, 25GbE, 40GbE, and 100GbE connectivity. Purpose-built for leaf-spine and collapsed Spline architectures, this module provides exceptional scalability and power efficiency for modern cloud and enterprise data centers.

Features

Wire-speed Layer 2/3/4 forwarding with non-blocking architecture
- 6.4Tbps per line card throughput
- Up to 32MB buffer memory per port group for superior burst absorption
- Dynamic Buffer Allocation (DBA) for optimal memory utilization
- Flow-based dynamic load balancing across fabric
- Unified Forwarding Table (UFT) with flexible resource allocation
- Support for MAC address, IPv4/IPv6 host routes, and routing tables
- VXLAN hardware acceleration for network virtualization
- 64-way MLAG and 128-way ECMP for scalable leaf-spine designs
- Advanced monitoring: LANZ microburst detection, sFlow, and VM Tracer
- IEEE 1588 precision timing protocol support
- Hot-swappable for zero-downtime maintenance
- Compatible with Arista EOS for consistent management
- Energy efficient: Under 1.7W per 10Gb performance
- Support for 10G, 25G, 40G, and 100G interface speeds
- Single-stage architecture for fair port access

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

32 x 100GbE QSFP ports
- Line card throughput: 6.4Tbps
- Forwarding rate: Up to 4 billion packets per second (per line card)
- Buffer memory: Up to 32MB per port group
- Breakout support: 32 x 100GbE, 32 x 40GbE, or up to 128 x 10/25GbE with breakout cables
- Wire-speed Layer 2/3/4 forwarding
- Non-blocking full mesh fabric connectivity
- Flow-based dynamic load balancing
- Power consumption: 166W typical / 232W maximum
- Hot-swappable design
- Compatible with: DCS-7304X3 and DCS-7308X3 chassis
- Unified Forwarding Table (UFT) support
- Advanced traffic management and burst absorption
- Power efficiency: Under 1.7W per 10Gb of performance

FAQs

Q: Which chassis models are compatible with the DCS-7300X3-32C-LC?
A: This line card is compatible with the Arista 7304X3 (4-slot) and 7308X3 (8-slot) modular chassis systems. It requires the appropriate fabric modules and supervisor for operation.

Q: Can I mix this line card with other 7300X3 series line cards?
A: Yes, the Arista 7300 Series supports any combination of compatible line cards within the same chassis, allowing flexible network designs to meet specific port density and speed requirements.

Q: What breakout configurations are supported?
A: Each QSFP port supports native 100GbE or 40GbE operation, or can be broken out to 4 x 25GbE or 4 x 10GbE using appropriate breakout cables and transceivers, providing up to 128 ports of 10/25GbE connectivity per line card.

Q: What is the forwarding performance of this line card?
A: The DCS-7300X3-32C-LC delivers 6.4Tbps throughput with wire-speed forwarding across all ports and up to 4 billion packets per second forwarding capacity, ensuring low latency for data center workloads.

Q: Does this line card support advanced data center features?
A: Yes, it supports comprehensive Layer 2 and Layer 3 features including VXLAN, EVPN, 64-way MLAG, 128-way ECMP, advanced traffic monitoring (LANZ, sFlow), precision timing (IEEE 1588), and network virtualization running Arista EOS.

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