KCAT Overhauls CGNAT Infrastructure with VyOS for Scalable Regional Connectivity — VyOS Networks Corporation

Event summary

KCAT Inc., a regional fiber ISP in Negros Island, modernized its CGNAT layer with VyOS Networks, transitioning from legacy hardware to COTS servers.
The upgrade eliminated performance bottlenecks, enabling KCAT to scale from 5,000 to 10,000 subscribers with stable throughput of 7–10 Gbps under peak conditions.
Latency was reduced by 35–50%, and conntrack utilization remained under 40% during peak usage, with zero unplanned downtime in production.
VyOS’s open-source platform allowed KCAT to avoid vendor lock-in and automate configurations via API and Ansible.

The big picture

KCAT’s shift to VyOS reflects a broader trend among ISPs moving toward open-source networking solutions for cost-effective scalability. The upgrade aligns with the growing demand for carrier-grade performance on commodity hardware, particularly in regions experiencing rapid subscriber growth. This case highlights how automation and flexible deployment can address infrastructure constraints without compromising reliability.

What we're watching

Open-Source Adoption: How VyOS’s open-source model will influence other ISPs looking to reduce hardware costs and avoid vendor lock-in.
Automation Impact: Whether KCAT can sustain operational efficiency as it scales further with automated configurations via API and Ansible.
Regional Expansion: The pace at which VyOS can replicate this success in other regional markets beyond Negros Island.