Traffic Management

Posted by AJ × 04:54

*The main objectives of traffic management are efficient use of network resources & deliver QoS.

*Traffic Management is classified into three levels that are Packet level, Flow level and Flow aggregated level.

Traffic Management at Packet Level

* Queueing & scheduling at switches, routers and multiplexers.

* The path traversed by packet through a network can be modeled as sequence of Queueing systems as shown in above figure.

* A packet traversing network encounters delay and possible loss at various multiplexing points.

* End-to-end performance is sum of the individual delays experienced at each system.

* Average end-to-end delay is the sum of the individual average delay.

* To meet the QoS requirements of multiple services, a queueing system must implement strategies for controlling the transmission bit rates.

The different strategies for Queue scheduling are:-

1. FIFO QUEUEING

2. PRIORITY QUEUEING

3. FAIR QUEUEING

4. WEIGHTED FAIR QUEUEING

All Syllabus