Lucent Technologies CBX 3500, Configuration Manual

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ATM Traffic Descriptors
PCR CLP=0+1, SCR CLP=0+1, and MBS CLP=0+1
ATM Services Configuration Guide for CBX 3500, CBX 500, GX 550, and B-STDX 9000 1/19/05 B-9
Beta Draft Confidential
All values in the table represent the measured traffic rate at a given point in time.
Table B-5. PCR CLP=0+1, SCR CLP=0+1, and MBS CLP=0+1
CLP=0+1
(CPS)
SCR of
CLP=0+1
Stream
MBS of
CLP=0+1
Stream
Result
68,000 40,000 30 The switch does not drop any cells because the
streams do not exceed traffic parameters.
70,000 40,000 60 CLP=0+1 cells are dropped from the aggregate
cell stream if the burst tolerance is exceeded.
The number of cells that are dropped depends
on the traffic pattern combination of sustained
and burst cells. The larger the burst, the more
cells are dropped.
70,000 50,000 30 The switch drops 10,000 CLP=0+1 CPS
because CLP=0+1 exceeds the SCR. It may
drop additional cells because the cell burst of
30 cells at PCR, combined with the sustained
traffic, may exceed the burst tolerance.
77,000 40,000 60 The CLP=0+1 stream drops 7,000 CPS because
CLP=0+1 exceeds the PCR. The number of
CLP=0 and CLP=1 cells that the switch drops
depends on the ratio of CLP=0 to CLP=1 cells
in the aggregate stream. In addition, the switch
may drop some CLP=0+1 cells if they exceed
the burst tolerance.