Dáil Éireann Debate, Thursday - 28 January 2021
18. Deputy James Lawless asked the Minister for the Environment, Climate and Communications the criteria that National Broadband Ireland is using to determine the order in which it is carrying out their survey work; and if he will make a statement on the matter. [4741/21]
View answerThe network rollout for the National Broadband Plan is divided into 227 Deployment Areas (DAs) across the country. These are typically an area of approximately 25km in radius and in total they cover 96% of Ireland’s landmass.
The architecture of the network design is specifically based on the design of the NBI network coming from the eir exchanges or the metropolitan area networks (MANs) managed by Enet. It is based on an engineering design that allows NBI to get to every premises as quickly as possible working within the confines of how fibre networks are built.
Each DA creates a ‘fibre ring’ which is essential to ensure reliability, robustness and resilience. Critical to the success of the network, NBI’s fibre rings are built with back-ups, ensuring that in the event of one fibre cable being disrupted, the whole network continues to perform.
Each fibre ring that NBI deploys is designed in a way that is non-discriminatory, meaning that as the rollout progresses, it may pass relatively urban areas at the same time as passing some of the most remote premises within the intervention area. The design will utilise existing infrastructure to a very significant degree.
