Cell Relay Archive[Date Prev][Date Next][Thread Prev][Thread Next] [Date Index][Thread Index][Author Index][Subject Index] Re: An old topic, can CBR connection be overbooked?
> > > > Hi friends, > > This is really an old topic, but i'm a little slow and can't catch up,:-) > > Can we over-subscribe CBR connection within a physical link? Heard some > expert (from C&W) last night, that at the idle time when upper layer app > don't generate data, so no cell will be send even in CBR conenction, then > the idle time in the cell level will be used by other connection, such as > UBR, ABR. Only ABR can use the access bandwidth on the link which has been contracted but not used. This property comes from the very nature of this service category where the current cell rate is adjusted looking at the network, depending on traffic conditions and available bandwidth. So this property implies that those switches supporting ABR capability shall support it. -mukul > Is this a general practice by all the switch? Or it's only an > advantage of certain switch ( more capabile and efficient switch)? > > Thanks definitely for your answer, or pointer to a previous discussion > is also welcome. Thanks. > > > Yu Ning. > -- > ___________________________________________* > > Yu Ning > ATM R&D Centre of > BUPT (Beijing U. of Posts&Telecom) > Beijing (ZIP:100876, MBox:147#), P.R.China > Ideas ONLY reflect my own views,:-) > ___________________________________________ |
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