Task: Translation
Input (Czech): Za° zen  je opat°eno s  ovou integra n  jednotkou (28), kter  integruje alespo  dv  r zn  fyzick  s t  (24, 25) a umo  uje, aby se tyto fyzick  s t  (24, 25) jevily na s  ov  vrstv  jako jedna fyzick  s  . S  ov  integra n  jednotka (28) obsahuje: jednotku (31) pro spr vu atribut  s t  pro autonomn  p°ev d n  s  ov²ch atribut  pro adresaci · astn ka p°es jednu z fyzick²ch s t  (24, 25), kter  je pr v  aktivn  a ° dic  jednotku (32) toku pro veden  datov ho toku podle aktu ln ch s  ov²ch atribut ; a s  ov  rozhran  spojuj c  s  ovou integra n  jednotku (28) se s  ovou vrstvou (27). Se syst mem podle tohoto °e en  je zm na mezi r zn²mi datov²mi fyzick²mi s t mi (24, 25) zcela plynul  jak pro u ivatele v pevn  s ti, tak pro u ivatele mobiln  s t .\
Output (English): The present invention relates to a system for transmission of data flow in data communication being provided with a network integration unit (28), which integrates at least two different physical networks (24, 25) and which allows said at least two different physical networks (24, 25) to appear to a network layer as a single physical network. Said network integration unit (28) comprises: an attribute manager unit (31) for autonomous transfer of network attributes to address a user over one of said physical networks (24, 25) being just active and a flow control unit (32) for conduction the data flow in accordance with actual network attributes; and a network interface interconnecting said network integration unit (28) with a network layer (27). The system according to the present invention enables quite continuous change between different physical networks (24, 25) for both the users of a stationary network and users of a mobile network.