Creating Data PVCs

A data PVC, also referred to as a data circuit, is an ATM PVC that carries data. You must create a data PVC on an ATM 1483 subinterface that is stacked above an ATM major interface, and not on the ATM major interface itself.

To create a data PVC, you issue the pvc command from Subinterface Configuration mode to access ATM VC Configuration mode. From ATM VC Configuration mode, you can then do either of the following:

• Issue the exit command, which creates a data PVC that uses default values for service category (unspecified bit rate without a peak cell rate), encapsulation type (aal5snap), F5 OAM (disabled), and Inverse ARP (disabled).
• Issue commands to configure or modify data PVC attributes including the service category, encapsulation type, F5 OAM, and Inverse ARP.

For example, the following commands create a data PVC with VCD 32, VPI 0, VCI 100 and default values for the other attributes. Issuing the exit command causes the configuration to take effect.

Regardless of whether you use the pvc command or the atm pvc command to create a data PVC, you cannot modify the VCD, VPI, or VCI values after they have been configured.

pvc

• Use from Subinterface Configuration mode to create a data PVC and access ATM VC Configuration mode, from which you can configure and modify individual PVC attributes one at a time.
• To create a basic data PVC with default values for service category, encapsulation type, F5 OAM, and Inverse ARP, specify the VCD and the VPI and VCI (in the format vpi/vci).
• You must issue the exit command from ATM VC Configuration mode for the configuration to take effect.
• Example

  host1(config-subif)#pvc 10 15/50

  host1(config-subif-atm-vc)#exit

• Use the no version to remove the specified data PVC from the router.
• See pvc.

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