[1] The previous versions of the Polish academic computer network were called POL-34 and POL-155.
POL-34 was created as a result of an experiment hosted in Poznań in 1997 during a scientific conference in which the representatives of all major Polish MAN's took part.
During the experiment Poznań, Łódź and Gdańsk were connected and the 34 Mbit/s ATM network in a 622 Mbit/s SDH environment has been created and since then called POL-34.
Speed was expanded to 155 Mbit/s Asynchronous Transfer Mode between Gdańsk, Łódź and Poznań and a constant effort to create 155 Mbit/s links between smaller nodes was made.
Currently the network connects Białystok, Bielsko-Biała, Bydgoszcz, Częstochowa, Gdańsk, Gliwice, Kielce, Kraków, Lublin, Łódź, Opole, Poznań, Puławy, Radom, Toruń, Warsaw, Wrocław, Koszalin, Szczecin, Olsztyn and Zielona Góra with a fiber-optic 10 Gbit/s patch-cord, and consists of 5738,86 km of optical fiber.