AsterSNMP

…ok, the name needs work.

Our Network Alert System

The Goal The Process Design Considerations Question Period

The Goal

Where did the idea come from?Using Asterisk for more than voice

Tying in network devicesTraffic EngineeringNetwork NotificationDevice Management

The Process

The Players…SNMPText To SpeechAsteriskPerl

Asterisk Perl Script

Cepstral Text-To-Speech

Engine

Wave File

snmp.call

channel variables

snmptrapd

Asterisk DB

trap

SNMP Trap Log

Simple Network Management Protocol

What is SNMP? How is it used?

The 5 directives: Set Get GetResponse GetNext Traps

MIB and OID SNMP in Practice

SSH boobytrap.log Agent

AgentSNMP Manager

Ethernet Connection192.168.1.0/24

Serial Connection10.10.1.0/30

BGP Peering Arrange-

ment

Simple Network Management Protocol

Object Navigator

Text To Speech

What is Text To Speech? Models of Speech Synthesis

DiphoneHMM

Text To Speech in PracticeFestival vs. Cepstral

Asterisk Converged Telephony Platform

What is Asterisk? Scripting Capabilities The Dialplan The Database Asterisk in Practice

Sending Email Getting the Call Calling the Administrator Changing the Status of an Interface SSH

Perl – The Glue

What is Perl? Log files Parsing (Regular Expressions) Sub routines Perl in Practice

Seeing the debugging output

Design Considerations

Cepstral being a demo (sox and trim) Contacting Administrator (database vs snmpget)

Multiple Notifications (script triggered each time) …Ideas?

Question Period

Questions and Closing Remarks

Fin!