Appendix K Router Platform User Interface Reference

PVC Policy Page

Table K-26 PVC Dialog Box—Settings Tab (Continued)

Encapsulation settings

Type

Does not apply when the Management PVC (ILMI) check box is enabled.

 

The ATM adaptation layer (AAL) and encapsulation type to use on the PVC:

 

[blank]—The encapsulation type is not defined. (When deployed,

 

aal5snap is applied.)

 

aal2—For PVCs dedicated to AAL2 Voice over ATM. AAL2 is used for

 

variable bit rate (VBR) traffic, which can be either realtime (VBR-RT)

 

or non-realtime (VBR-NRT).

 

aal5autoppp—Enables the router to distinguish between incoming PPP

 

over ATM (PPPoA) and PPP over Ethernet (PPPoE) sessions and create

 

virtual access for both PPP types based on demand.

 

aal5ciscoppp—For the proprietary Cisco version of PPP over ATM.

 

aal5mux—Enables you to dedicate the PVC to a single protocol, as

 

defined in the Protocol field.

 

aal5nlpid—Enables ATM interfaces to work with High-Speed Serial

 

Interfaces (HSSI) that are using an ATM data service unit (ADSU) and

 

running ATM-Data Exchange Interface (DXI).

 

aal5snap—Supports Inverse ARP and incorporates the Logical Link

 

Control/Subnetwork Access Protocol (LLC/SNAP) that precedes the

 

protocol datagram. This allows multiple protocols to traverse the same

 

PVC.

 

 

 

 

User Guide for Cisco Security Manager 3.2

 

 

 

 

 

 

OL-16066-01

 

 

K-61

 

 

 

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Cisco Systems OL-16066-01 appendix Pvc