3com 3031 Instruccion De Instalación

Note: PVC service mapping cannot change the priority of IP packets. Configuring 
CAR may perform this change.

Configurations of PVC MAP, service category, encapsulation type and OAM can be 
implemented via ATM-Class. First create an ATM-Class and set the parameters 
needed, then invoke the ATM-Class in the PVC view or ATM interface view. The 
procedures of configuring ATM-Class parameters are as follows.

Note: As for the same parameters, the parameters configured directly under the 
PVC have the highest priority. Those of the ATM-Class for the PVC and for the 
ATM interface rank second and third respectively.

In the ATM master interface view, the following commands are used to set the 
parameters of VP policing.

By default, VP policing is not performed.

Delete priority for the IP packets that 
the PVC bears

undo ip-precedence { pvc-name [ vpi/vci 
] | vpi/vci }

Table 337   Configuring PVC service mapping

Table 338   Configuring ATM-Class

Establish ATM-Class

Specify ATM AAL5 encapsulation 
type for the PVC

Start transmission of OAM F5 
Loopback cells or retransmission 
check of OAM F5 Loopback

oam frequency frequency [ up up-count 
down down-count retry-frequency 
retry-frequency ]

Enable inverse address resolution 
InARP for the PVC

map ip inarp [ minutes ] [ broadcast ]

Establish PPPoA mapping for the 
PVC

Establish PPPoEoA mapping for the 
PVC

Set the PVC’s service type as ” 
Constant Bit Rate”

service cbr output-pcr [ cdvt 
cdvt_value ]

Set the PVC’s business type as ” 
Unspecified Bit Rate”

Set the PVC’s business type as ” 
Real-time Variable Bit Rate”

Set the PVC’s business type as ” 
Non-real-time Variable Bit Rate”

Enable the ATM-Class

atm-class atm-class-name 

Table 339   Setting the parameters of VP policing

Set the parameters of VP policing

Remove VP policing