Characteristics And Types Of Virtual Connections; Configuring Virtual Channel Connections - Cisco Catalyst 8540 MSR Configuration Manual

Atm switch router software configuration guide

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Characteristics and Types of Virtual Connections

Characteristics and Types of Virtual Connections

This section lists the various virtual connections (VC) types in

Permanent virtual channel link (PVCL)

Permanent virtual path link (PVPL)

Permanent virtual channel (PVC)

Permanent virtual path (PVP)

Soft permanent virtual channel (Soft PVC)

Soft permanent virtual path (Soft PVP)

Switched virtual channel (SVC)

Switched virtual path (SVP)

This section describes configuring virtual channel connections (VCCs) on the ATM switch router.

A VCC is established as a bidirectional facility to transfer ATM traffic between two ATM layer users.

An end-to-end VCC, as shown in

The common endpoint between an internal connection and a link occurs at the switch interface.

The endpoint of the internal connection is also referred to as a connection leg or half-leg.

A cross-connect connects two legs together.

ATM Switch Router Software Configuration Guide

Input Translation Table Management, page 7-95

Supported VC Types

shows an example VCC between ATM user A and user D.

Virtual channel links, labelled VCL. These are the interconnections between switches, either

directly or through VP tunnels.

Internal connections, shown by the dotted line in the switch. These connections are also sometimes

called cross-connections or cross-connects.

VPI/VCI = 0/50

between user A and user D, has two parts:

VPI/VCI = 2/100

Configuring Virtual Connections

VPI/VCI = 50/255

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