Cell Relay Archive

[Thomas Frieling <thomas.frieling@nexgo.de>]

Kostas Kapetanakis wrote:
> 
> Hello!
> 
> Does anybody know what are the general differences between the QoS
> parameters and the Traffic parameters as defined in the PNNI 1.0 for ATM?
> 
> Thank you!
> Kostas.

Traffic parameters (see UNI 3.1 or better TM 4.1) describe the
course of the user cell rate with time. For the constant bitrate
service category, e.g., it takes only one traffic parameter, the
Peak Cell Rate. Other service categories need different sets of
traffic parameters.
QoS-Parameters are cell loss ratio, cell transfer delay, cell
delay variation and three more less important ones. They can be
measured and a network can commit itself to deliver traffic
obeying the (via UNI/PNNI) signalled figures.

Thomas

(Follow-Up to comp.dcom.cell-relay)