ATM Connection Configuration

Table 7-2

Traffic Policing Definitions

 

 

 

 

 

 

 

 

 

 

 

 

ATM Forum TM

 

 

 

 

 

 

spec. 4.0

PCR Flow

CLP

SCR Flow

CLP

 

 

conformance

(1st leaky

tagging (for

(2nd leaky

tagging (for

Connection Type

definition

bucket)

PCR flow)

bucket)

SCR flow)

 

 

 

 

 

 

 

CBR

 

CBR.1

CLP(0+1)

no

off

n/a

 

 

when policing set to

 

 

 

 

 

 

4 (PCR Policing

 

 

 

 

 

 

only)

 

 

 

 

 

 

 

 

 

 

 

CBR

 

When policing set

off

n/a

off

n/a

 

 

to 5 (off)

 

 

 

 

 

 

 

 

 

 

 

UBR

 

UBR.1

CLP(0+1)

no

off

n/a

 

 

when CLP setting =

 

 

 

 

 

 

no

 

 

 

 

 

 

 

 

 

 

 

UBR

 

UBR.2

CLP(0+1)

no

CLP(0)

yes

 

 

when CLP setting =

 

 

 

 

 

 

yes

 

 

 

 

 

 

 

 

 

 

VBR, ABR, ATFR,

VBR.1

CLP(0+1)

no

CLP(0+1)

no

ATFST

 

when policing set to

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

 

 

 

 

 

 

 

 

VBR, ABR, ATFR,

VBR.2

CLP(0+1)

no

CLP(0)

no

ATFST

 

when policing set to

 

 

 

 

 

 

 

 

 

 

 

 

2

 

 

 

 

 

 

 

 

 

 

VBR, ABR, ATFR,

VBR.3

CLP(0+1)

no

CLP(0)

yes

ATFST

 

when policing set to

 

 

 

 

 

 

 

 

 

 

 

 

3

 

 

 

 

 

 

 

 

 

 

VBR, ABR, ATFR,

when Policing set

CLP(0+1)

no

off

n/a

ATFST

 

to 4

 

 

 

 

 

 

 

 

 

 

VBR, ABR, ATFR,

when Policing set

off

n/a

off

n/a

ATFST

 

to 5 for off)

 

 

 

 

 

 

 

 

 

 

 

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

7-8Cisco BPX 8600 Series Reference

Page 186
Image 186
Cisco Systems 8600 Series manual CLP0+1, SCR Flow