Traffic Contract - Traffic Parameters

Traffic Parameters

Each ATM connection contains a set of parameters that describes the traffic characteristics of the source. These parameters are called source traffic parameters. They are :

  • Peak Cell Rate (PCR). The maximum allowable rate at which cells can be transported along a connection in the ATM network. The PCR is the determining factor in how often cells are sent in relation to time in an effort to minimize jitter. PCR generally is coupled with the CDVT (Cell Delay Variation Tolerance), which indicates how much jitter is allowable.
  • Sustainable Cell Rate (SCR). A calculation of the average allowable, long-term cell transfer rate on a specific connection.
  • Maximum Burst Size (MBS). The maximum allowable burst size of cells that can be transmitted contiguously on a particular connection.
  • Minimum Cell Rate (MCR). The minimum allowable rate at which cells can be transported along an ATM connection.

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