Network access arrangement

First multiprotocol label switch (MPLS) begins by Internet protocol data unit (11) is connected with the configuring of said optical network (12) and traditional network management system (16) TNMS), so them to simulate or imitate MPLS to begin by and a network, a separating of the optical unit (12) for transferring data to the second MPLS begins by the IP network (13), otherwise is to process of the MPLS network environment other by User-Network Interface protocol. The simulation of MPLS network/simulation is conducted as follows: The first end of the network element (NE) 14a) of the UNI protocol recess (the UNI request) from the MPLS network (11) is request, the UNI request transmission arrow (A) is TNMS (16), wherein after the second NE edge (14b) are uniformly of network (12) is processed (B) and second of IP network (13) NE. Once is arranged on the connecting, TNMS (16) indicating arrow (C) of NE (14a) is the support network (11) inverse transmission signal, indicates associated the success is connected. The data packet of through the network (11, 12 and 13) transmission.