According to Bloomberg, the system, nicknamed 6-pack, will let Facebook build networks by filling large racks with a smaller switch called Wedge, introduced in June. Using its own design helped Facebook, whose social-networking website has 1.4 billion users, reduce spending on infrastructure and upgrade its capabilities without depending on outside suppliers.

At the same time, the 6-pack is built to replace high-capacity spine switches that handle the bulk of traffic in data centers. Though it was originally marketed as a cheaper, top-of-rack switch, Wedge was designed to become a building block for systems to replace more expensive kinds of gear, said Najam Ahmad, Facebook’s vice president of infrastructure.

Facebook through the so-called Open “Compute Project” sharing its visions and technologies, which encourages many enterprises to work on the same purpose of lowering system costs.