Case Study: Viettel streamlines DNS infrastructure and boosts security with F5

Viettel boosts DNS processing 10x with F5

Viettel, a leading global telecommunications company, faced significant challenges with its rapidly growing and complex DNS infrastructure. Its reliance on open-source software led to security vulnerabilities, insufficient memory capacity, and high operational burdens despite constant hardware upgrades. To address this, the company partnered with vendor F5 to implement a new solution using F5 rSeries appliances equipped with BIG-IP DNS and BIG-IP Advanced Firewall Manager (AFM).

The F5 solution was implemented in two phases, focusing first on enhanced caching and security and then on full DNS optimization and consolidation. This streamlined Viettel's infrastructure from many servers to just 40 appliances, drastically reducing energy consumption and operational costs. The results included a tenfold increase in processing speed, robust security against cyber threats, and a scalable foundation that efficiently supports the company's millions of subscribers across multiple countries.

Viettel