Abstract

Traffic engineering

Traffic engineering applies to traditional voice networks. Voice over network is one of the traffic engineering. It is properly size the number of trunks and provision the appropriate amount of bandwidth necessary to carry amount of trunks determined. It is five step process.
1. collect the existing voice traffic : Collecting information from carrier. There are calls abandoned and all trunks busy. Also Grade of Service (GoS) rating for trunk groups, total traffic carried per trunk group and phone bills to see the carrier’s rates.
2. categorize the traffic by groups: stand by separating the traffic into inbound and outbound directions.
3. Determine number of physical trunks required to meet the traffic needs:If you know the amount of traffic generated and the GoS required, then you may calculate the number of trunks.
4. Converting the number of erlangs of traffic to packets or cells per second.
The second main topic is the four basic assumptions in traffic engineering. This includes potential sources, Traffic arrival characteristics, calculate the number of physical trunks required and trunk allocation.
This paper concludes with an fourth and final assumption that centers around the switching equipment.