7-87
ATM Switch Router Software Configuration Guide
OL-7396-01
Chapter7 Configuring Virtual Connections
Configuring VP Tunnels

Displaying PVCs

To confirm PVC interface configuration, use the following EXEC command:
Example
The following example shows the configuration of ATM subinterface 1/0/0.99 on the ATM switch router
Switch(HB-1):
Switch(HB-1)# show atm vc interface atm 0/0/1
Interface VPI VCI Type X-Interface X-VPI X-VCI Encap Status
ATM0/0/1 0 5 PVC ATM2/0/0 0 41 QSAAL UP
ATM0/0/1 0 16 PVC ATM2/0/0 0 33 ILMI UP
ATM0/0/1 0 50 PVC ATM1/0/0.99 99 40 UP
Configuring Signalling VPCI for VP Tunnels
You can specify the value of the virtual path connection identifier (VPCI) that is to be carried in the
signalling messages within a VP tunnel. The connection identifier information element (IE) is used in
signalling messages to identify the corresponding user information flow. The connection identifier IE
contains the VPCI and VCI.
Note By default, the VPCI is the same as the VPI on the ATM switch router.
This feature can also be used to support connections over a virtual UNI.
To configure a VPtunnel connection signalling VPCI, perform the following steps, beginning in global
configuration mode:
Example
The following example configures a VP tunnel on ATM interface 0/0/0, PVP 99, and then configures the
connection ID VCPI as 0.
Switch(config)# interface atm 1/0/0
Switch(config-if)# atm pvp 99
Switch(config-if)# exit
Switch(config)# interface atm 1/0/0.99
Switch(config-subif)# atm signalling vpci 0
Switch(config-subif)# end
Command Purpose
show atm vc interface atm card/subcard/port Shows the ATM VC interface configuration.
Command Purpose
Step1 Switch(config)# interface atm
card/subcard/port.vpt#
Switch(config-if)#
Selects the subinterface.
Step2 Switch(config-if)# atm signalling vpci
vpci-number
Configures the ATM signalling VPCI number
0to255.