The Virtual Topology Service: A Mechanism for QoS-Enabled Interdomain Routing

Verdi, Fábio L.; Magalhães, Mauricio Ferreira; Madeira, Edmundo Roberto Mauro; Welin, A.

doi:10.1007/11908852_18

Cited by 3 publications

(2 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Além disso, após obterem as rotas BGP de seus provedores, os domínios clientes podem também, com base em políticas, selecionar apenas algumas rotas para obtenção das VTs. Isto normalmente pode ser feito caso a quantidade de rotas para um determinado destino seja demasiadamente grande [Verdi et al, 2006c].…”

Section: O Modelo Pushunclassified

See 1 more Smart Citation

Uma arquitetura para provisionamento e gerencia de serviços em redes opticas

Verdi¹

View full text Add to dashboard Cite

In the last few years it has been discussed a way for sending interdomain packet flows taking into account some aspects related to the network quality of service (bandwidth, delay, etc.). However, the vi vii solutions presented so far depend on the extensions that need to be done mainly in the interdomain routing protocols to support the distribution of traffic engineering information. Nevertheless, such extensions depend on long-process of standardization that, in many cases, does not reach a consensus and a standard is not effectively defined. An example of this is that in IP networks the proposed extensions for the BGP (Border Gateway Protocol) to support the distribution of traffic engineering information were not put into practice until now. Recently, the same discussion came through in the optical network scenario. This thesis presents an alternative to standardization processes. We propose an architecture for provisioning and management of interdomain services in optical networks. Such architecture acts independent of the control plane and does not depend on the protocol extensions that are needed to support interdomain routing and signaling. The architecture has a service layer by which all the interactions between different optical domains are done. Within each domain, the lightpaths are established using local solutions such as GMPLS (Generalized Multiprotocol Label Switching) or ASON (Automatic Switched Optical Network). However, the provisioning of interdomain services is not done in the control plane. Instead, it is done in the services layer. Although the focus of this thesis is on the provisioning of interdomain services, the architecture also supports the establishment of intradomain services. We are particularly interested in the provisioning of connections and VPNs (Virtual Private Networks) within a domain as well as between domains. The architecture is based on the TMN model (Telecommunications Management Network). The TMN model is used to divide the architecture into layers and to define the nomenclature of each layer. The Web Services technology was used to implement the architecture. The implementation was done to validate the architecture and to analyse the usage of Web Services to establish interdomain optical network services. The results presented in this work highlight that by doing the provisioning of services through the services layer facilitate the implementation of the interactions among different domains and offer a new mechanism to support such interactions.

show abstract

Section: O Modelo Pushunclassified

“…Esta seção tem como objetivo analisar o modelo Pull e sua integração com um cenário real usando BGP. Tal seção é baseada no artigo referenciado em [Verdi et al, 2006c]. Durante toda a tese, comentamos que o modelo Pull pode ser integrado mais facilmente a um cenário real da Internet.…”

Section: Comparação Entre Os Modelos Push E Pullunclassified