Proposta de arquitetura de medição e estimativa de tráfego em redes DIFFSERV

AUTOR(ES)
DATA DE PUBLICAÇÃO

2006

RESUMO

This work presents a framework for estimating the delay in networks that implements the Differentiated Services QoS methodology. The work considers the use of the Policy Based Network Management (PBNM) model to perform the collection of data from the core and border routers in a DiffServ domain. The architecture is based on the IETF (Internet Engineering Task Force) standards and defines new PIB (Policy Information Base) which permits standardize the form how the collected data of DiffServ domain are represented. The PIB proposed is a specialization for DiffServ of the generic PIB defined by the IETF. To carry the collected statistical information from the network devices is used the COPS-PR protocol. Based on the collected data from the network devices and grouped on PDP (Policy Decision Point), are performed valuations of end-to-end delay to the data flows carried by the network. The strategy based on the network devices information is confronted with the conventional end-to-end measurement strategy by using a case study considering the transmission of a real-time video flow.

ASSUNTO(S)

informática arquitetura de redes de computadores ciencia da computacao redes de computação - protocolos

ACESSO AO ARTIGO

Documentos Relacionados