Diseño de minutogramas y automatización del análisis topológico para la planificación de ventanas de mantenimiento en redes DWDM/OTN

Abstract

As part of an internship at Huawei Technologies Colombia S.A.S. within the Fixed Broadband (FBB) department, this project addresses the technical optimization of DWDM/OTN transmission node upgrades. The main challenge lies in the risk of disrupting end customers during maintenance windows, due to the manual and time-consuming planning of optical channel (OCh) routes. To address this, a methodology was implemented based on two pillars: the design of standardized minute-by-minute schedules to rigorously control execution and optical power levels, and the development of a Python code that automates the analysis of ASONTRAIL reports from the iMaster NCE-T. As a result, the time required to generate network topologies and impact maps was reduced by 50% (from 3 days to 1.5 business days), minimizing the risk of human error in physical and logical migrations. It should be noted that the network, port, and topology information presented in this document has been anonymized to protect the confidentiality of the operator’s infrastructure. It is concluded that automation is a fundamental pillar for ensuring Service Level Agreements (SLAs) in high-capacity networks.