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7-8 Cisco BPX 8600 Series Reference
ATM Connection Configuration
Table 7-2 Traffic Policing Definitions
Note 1: - For UBR.2, SCR = 0
Note 2:
— CLP = Cell Lost Priority
— CLP(0) means cells that have CLP = 0
— CLP(1) means cells that have CLP = 1
— CLP(0+1) means both types of cells: CLP = 0 & CLP = 1
— CLP(0) has higher priority than CLP(1)
— CLP tagging means to change CLP = 0 to CLP = 1, where CLP= 1 cells have lower priority
Connection Type
ATM Forum TM
spec. 4.0
conformance
definition
PCR Flow
(1st leaky
bucket)
CLP
tagging (for
PCR flow)
SCR Flow
(2nd leaky
bucket)
CLP
tagging (for
SCR flow)
CBR
CBR.1
when policing set to
4 (PCR Policing
only)
CLP(0+1)
no off n/a
CBR When policing set
to 5 (off)
off n/a off n/a
UBR
UBR.1
when CLP setting =
no
CLP(0+1)
no off n/a
UBR
UBR.2
when CLP setting =
yes
CLP(0+1)
no
CLP(0)
yes
VBR, ABR, ATFR,
ATFST
VBR.1
when policing set to
1
CLP(0+1)
no
CLP(0+1)
no
VBR, ABR, ATFR,
ATFST
VBR.2
when policing set to
2
CLP(0+1)
no
CLP(0)
no
VBR, ABR, ATFR,
ATFST
VBR.3
when policing set to
3
CLP(0+1)
no
CLP(0)
yes
VBR, ABR, ATFR,
ATFST
when Policing set
to 4
CLP(0+1)
no off n/a
VBR, ABR, ATFR,
ATFST
when Policing set
to 5 for off)
off n/a off n/a