Chapter 2 Understanding Cisco Access Registrar

Cisco AR Directory Structure

concurrently, you might create two Session Managers and three Resource Managers. One dynamic IP Resource Manager that is referenced by both Session Managers, and two concurrent session Resource Managers, one for each Session Manager.

In addition, Cisco Access Registrar lets you pose queries about sessions. For example, you can query Cisco Access Registrar about which session (and thus which NAS-Identifier, NAS-Port and/or User-Name) owns a particular resource, as well as query Cisco Access Registrar about how many resources are allocated or how many sessions are active.

Cisco AR Directory Structure

The installation process populates the /opt/CSCOar directory with the subdirectories listed in Table 2-1.

Note This directory structure is different from that of previous version of Cisco AR.

Table 2-1 /opt/CSCOar Subdirectories

Subdirectory

Description

 

 

.system

Contains ELFs, or binary SPARC executables that should not be run directly

 

 

bin

Contains shell scripts and programs frequently used by a network

 

administrator; programs that can be run directly

 

 

conf

Contains configuration files

 

 

data

Contains the radius directory, which contains session backing files; and the

 

db directory, which contains configuration database files

 

 

examples

Contains documentation, sample configuration scripts, and shared library

 

scripts

 

 

lib

Contains Cisco Access Registrar software library files

 

 

logs

Contains system logs and is the default directory for RADIUS accounting

 

 

odbc

Contains Cisco Access Registrar ODBC files

 

 

scripts

Contains sample scripts that you can modify to automate configuration, and

 

to customize your RADIUS server

 

 

temp

Used for temporary storage

 

 

ucd-snmp

Contains the UCD-SNMP software Cisco Access Registrar uses

 

 

usrbin

Contains a symbolic link that points to bin.

 

 

Program Flow

When a NAS sends a request packet to Cisco Access Registrar with a name and password, Cisco Access Registrar performs the following actions. Note, Table 2-2describes the flow without regard to scripting points.

Cisco Access Registrar 3.5 Concepts and Reference Guide

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Cisco Systems 3.5 manual Cisco AR Directory Structure, Program Flow, Subdirectory Description

3.5 specifications

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