| 摘要 |
Arrangement and method for the controlling of the traffic parameters of the ATM cell flow according to the so-called "Leaky Bucket" principle in an exchange termination (ET) including a header processing and translation unit (HTU). A plurality of policing units (PU1, PU2, PU3, PU4), for the control of the peak (Rp) and mean (Rm) bit rate by discriminating also among the cells pertaining to the higher priority flow (CLP=0) and the one pertaining to the lower priority flow (CLP=1), are provided. The units are activated in parallel by the said header processing and translation unit (HTU) and connected to a combinatorial network (RC). In the case of violation of the negotiated parameters, the higher priority cell may be declassed and treated like the other lower priority ones, or may be discarded. In the units, the updating is performed in the next controlling cycle of the cell relating to the same virtual channel/virtual path. |
