255-700-025
E-1
PacketStar
™
Access Concentrator 60 User Guide
, Issue 1
Release 6.3.0
E
Reference Information
Overview of This Appendix
This appendix contains reference tables that are helpful while configuring
your PSAX Access Concentrator system. The following types of information
are provided:
•
Quality of service (QoS) information tables
•
Compliance matrix
•
Module alarm status table
•
Connection type by interface type table
•
Interface type by module table
QoS Information Tables
Table E-1 details the Access Concentrator system support of defined ATM
quality of service (QoS) classes.
Table E-1. Access Concentrator System-Supported Service Classes
ATM Service Class
Description
Constant Bit Rate (CBR)
Service that operates on a connection basis and
offers consistent delay predictability; used for
applications such as circuit emulation, voice,
and video.
Variable Bit Rate—Real
Time (VBR-RT)
Service that operates on a connection basis and
offers very low delay variance but requires
access to a variable amount of network band-
width; used for such applications as packet
video and voice.