RT Journal Article
T1 Failure propagation in GMPLS optical rings: CTMC model and performance analysis
A1 Seoane Pujol, Isaac
A1 Calle, E.
A1 Hernández Gutiérrez, José Alberto
A1 Segovia, J.
A1 Romeral, R.
A1 Vilà, P.
A1 Urueña Pascual, Manuel
A1 Manzano, M.
AB Network reliability and resilience has become a key design parameter for networkoperators and Internet service providers. These often seek ways to have their networksfully operational for at least 99.999% of the time, regardless of the number andtype of failures that may occur in their networks.This article presents a continuous-time Markov chain model to characterise the propagation of failures in optical GMPLS rings. Two types of failures are considered dependingon whether they affect only the control plane, or both the control and data planes ofthe node. Additionally, it is assumed that control failures propagate along the ring infecting neighbouring nodes, as stated by the Susceptible-Infected-Disabled (SID) propagation model taken from epidemic-based propagation models. A few numerical examples are performedto demonstrate that the CTMC model provides a set of guidelines for selecting theappropriate repair rates in order to attain specific availability requirements, both in the control plane and the data plane.
PB Elsevier
SN 1573-4277
YR 2012
FD 2012-01
LK https://hdl.handle.net/10016/12816
UL https://hdl.handle.net/10016/12816
LA eng
NO This work is partially supported by the Spanish Ministry of Science and Innovation project TEC 2009-10724 and by the Generalitat de Catalunya research supportprogramme (SGR-1202).Additionally, the authors would like to thank the support of the T2C2 Spanish project (under code TIN2008-06739-C04-01) and the CAM-UC3M Greencom research grant (under code CCG10-UC3M/TIC-5624) in the development of this work.
DS e-Archivo
RD 27 jul. 2024