Network Router User Manual

ATM VC

Parameter Description

Virtual Circuit

VPI (Virtual Path Identifier) and VCI (Virtual Channel Identifier

define a virtual circuit.

VPI

VPI is a virtual path determines the way an ATM cell should

be routed. The VPI is an 8-bit (in UNI) or 12-bit (in NNI)

number that is included in the header of an ATM cell. The

valid range for the VPI is 0 to 255. Enter the VPI assigned by

the ISP.

VCI

VCI is the label given to an ATM VC to identify it and

determine its destination. The VCI is a 16-bit number that is

included in the header of an ATM cell. The valid range for the

VCI is 32 to 65535. Enter the VCI assigned by the ISP.