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TL;DR: The Cisco Catalyst 6800-8P40G-XL is an 8-port 40G Ethernet module designed for the Catalyst 6800 Series modular switches, delivering high-speed aggregation and backbone connectivity for enterprise and campus networks.
Cisco Catalyst 6800-8P40G-XL: High-Performance 8-Port 40G Module

The Cisco Catalyst 6800-8P40G-XL is an 8-port 40G Ethernet module designed for the Catalyst 6800 Series modular switches, delivering high-speed aggregation and backbone connectivity for enterprise and campus networks. It provides low-latency, high-throughput performance with advanced QoS and security features, making it ideal for data center interconnects, core switching, and high-bandwidth applications.
✔ 8 x 40G QSFP+ ports (breakout capable to 4x10G)
✔ 320Gbps switching capacity (non-blocking)
✔ Sub-3µs latency for latency-sensitive traffic
✔ Cisco UADP 2.0 ASIC for intelligent traffic handling
✔ MACsec encryption (256-bit AES) for secure communications
✔ Hot-swappable design for high availability
✔ Energy-efficient operation with dynamic power scaling
Data center spine/leaf aggregation
Campus network core/distribution
High-performance computing (HPC) clusters
Video surveillance and media streaming backbones
16 x 100G QSFP28 ports (breakout capable to 4x25G or 2x50G)
1.6Tbps switching capacity (5x improvement)
Sub-1µs latency for ultra-low-latency applications
Cisco Silicon One ASIC for AI-driven traffic optimization
Post-quantum cryptography-ready MACsec
40% lower power consumption per port
Higher density and bandwidth for 100G/400G networks
Future-proof security against quantum threats
AI-powered traffic engineering
Ideal for AI/ML workloads and cloud-scale applications
The Catalyst 6800-8P40G-XL is a reliable, high-performance 40G solution, while the Catalyst 6800-16P100G-XL represents the next leap in speed, intelligence, and efficiency. With higher port density, lower latency, and AI-driven automation, the next-gen module is built for next-generation enterprise and data center networks.
A: ✔ 8 x 40G QSFP+ ports (breakout capable to 4x10G)✔ 320Gbps switching capacity (non-blocking)✔ Sub-3µs latency for latency-sensitive traffic✔ Cisco UADP 2.
A: Data center spine/leaf aggregation Campus network core/distribution High-performance computing (HPC) clusters
A: Campus network core/distribution High-performance computing (HPC) clusters Video surveillance and media streaming backbones
A: High-performance computing (HPC) clusters Video surveillance and media streaming backbones 16 x 100G QSFP28 ports (breakout capable to 4x25G or 2x50G)1.