Network characteristics - QoS
l QoS is based on IETF Differentiated Services model
l Application mix
l user traffic (voice, streaming media, interactive data, bulk data)
l signaling (time critical, non real-time)
l O&M (time critical, non real-time)
l All of these are mapped to services of the transport layer.
l Management tasks
l monitoring service quality
l optimal provisioning of network resources
l consistent deployment of DiffServ configurations