321 Studios OL-7141-04 manual Encapsulation List, Virtual Path Identifier Field

Chapter 1 Cisco SDM Express

Internet (WAN): User Specified Encapsulation

Encapsulation List

	The encapsulations available if you have an ADSL, G.SHDSL, or ADSL over
	ISDN interface are shown in the following table.
Encapsulation	Description
PPPoE	Provides Point-to-Point Protocol over Ethernet encapsulation. An ATM
	subinterface and a dialer interface are created when you configure PPPoE over
	an ATM interface. These logical interfaces will be visible in the Summary
	window.
	The PPPoE option is disabled if your router is running a release of Cisco IOS
	software that does not support PPPoE encapsulation.
PPPoA	Provides Point-to-Point Protocol over ATM encapsulation (AAL5 SNAP, and
	AAL5 MUX). The PPPoA option is disabled if your router is running a release
	of Cisco IOS software that does not support PPPoA encapsulation.
RFC 1483 routing	This option is available when you have selected an ATM interface. An ATM
with AAL5 SNAP	subinterface will be created when you configure an RFC 1483 connection. This
	subinterface will be visible in the Summary window.
RFC 1483 routing	This option is available when you have selected an ATM interface. An ATM
with AAL5 MUX	subinterface will be created when you configure an RFC 1483 connection. This
	subinterface will be visible in the Summary window.

Virtual Path Identifier Field

Enter the Virtual Path Identifier (VPI) value obtained from your service provider or system administrator. The VPI is used in ATM switching and routing to identify the path used for a number of connections.

Virtual Circuit Identifier Field

Enter the Virtual Circuit Identifier (VCI) value obtained from your service provider or system administrator. The VCI is used in ATM switching and routing to identify a particular connection within a path that it may share with other connections.

	Cisco SDM Express
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