Setup guide

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Cisco 6400 Software Setup Guide
OL-1183-04
Chapter3 Basic NRP Configuration
Permanent Virtual Circuits
Example—PVCs on Subinterfaces with Encapsulation Type Inherited from the Main ATM Interface
In the following example, PVCs 0/70 and 0/71 on ATM subinterface 0/0/0.40 inherit the AAL5
multiplex (MUX) encapsulation type from the main ATM interface. PVC 0/72 is specifically configured
for AAL5 SNAP, overriding the inherited encapsulation type.
Router(config)# interface atm 0/0/0
Router(config-if)# encapsulation aal5mux ppp virtual-template 1
Router(config)# interface atm 0/0/0.40 multipoint
Router(config-subif)# pvc 0/70
Router(config-if-atm-vc)# exit
Router(config-subif)# pvc 0/71
Router(config-if-atm-vc)# exit
Router(config-subif)# pvc 0/72
Router(config-if-atm-vc)# encapsulation aal5snap
Router(config-if-atm-vc)# ^z
The previous example results in the following configuration fragment:
!
interface atm 0/0/0
encapsulation aal5mux ppp virtual-template 1
!
interface atm 0/0/0.40 multipoint
pvc 0/70
!
pvc 0/71
!
pvc 0/72
encapsulation aal5snap
!
!
Verifying PVCs on ATM Subinterfaces
To verify successful configuration of PVCs on ATM subinterfaces, use the show atm vc EXEC
command. Check that the status (Sts) is up, and that the encapsulation type is correct.
NRP# show atm vc
VCD / Peak Avg/Min Burst
Interface Name VPI VCI Type Encaps SC Kbps Kbps Cells Sts
0/0/0.1 1 101 100 PVC MUX UBR 155000 UP
0/0/0.2 2 101 101 PVC MUX UBR 155000 UP
0/0/0.3 3 101 110 PVC SNAP UBR 155000 UP
NRP#
Configuring VC Classes
VC classes allow you to define a template for a particular VC. You can then apply this template directly
to a PVC, or to an interface or subinterface whose PVCs inherit the VC class properties.