Evaluating the probability and the impact of a failure in GMPLS based networks

Author

Calle, Eusebi ; Marzo, Jose L. ; Urra, Anna

Author_Institution

Inst. d´´Informatica i aplicacions, Univ. de Girona, Spain

fYear

2003

fDate

19-22 Oct. 2003

Firstpage

114

Lastpage

120

Abstract

In this paper, we define a new scheme to develop and evaluate protection strategies for building reliable GMPLS networks. This is based on what we have called the network protection degree (NPD). The NPD consists of an a priori evaluation, the failure sensibility degree (FSD), which provides the failure probability, and an a posteriori evaluation, the failure impact degree (FID), which determines the impact on the network in case of failure, in terms of packet loss and recovery time. Having mathematical formulated these components, experimental results demonstrate the benefits of the utilization of the NPD, when used to enhance some current QoS routing algorithms in order to offer a certain degree of protection.

Keywords

failure analysis; multiprotocol label switching; quality of service; telecommunication network reliability; telecommunication network routing; GMPLS network; QoS routing algorithm; a posteriori evaluation; failure impact degree; failure sensibility degree; mathematical formulation; network failure probability; network protection degree; network recovery time; network reliability; network utilization; packet loss; Electronic mail; Failure analysis; Intelligent networks; Mission critical systems; Probability; Protection; Quality of service; Routing; Switches; Telecommunication traffic;

fLanguage

English

Publisher

ieee

Conference_Titel

Design of Reliable Communication Networks, 2003. (DRCN 2003). Proceedings. Fourth International Workshop on

Print_ISBN

0-7803-8118-1

Type

conf

DOI

10.1109/DRCN.2003.1275346

Filename

1275346