
July 1, 2021, 4:55 p.m.
Peter Fetterolf's paper The Economic Benefits of Distributed Broadband Services compares the legacy centralized BNG architecture with the spine-leaf design:
The analysis compares the legacy centralized BNG architecture with a distributed spine-leaf BNG architecture and shows a five-year TCO savings of 35%. We also present scenarios where both the legacy BNG and the spine-leaf BNG designs are deployed in central office data centers to compare their TCO. These approaches produced the most significant five-year cumulative TCO savings of 64%.