[LINK] Does the NBN bring redundancy?

[Fernando Cassia]

As an observer from the other side of the globe, I wonder what the
policy has been by the NBN project with regards to existing fibre
networks. Does the NBN bring redundancy to private networks -NBN fibre
layout in parallel with existing fibre lines- or does it re-use
existing fibre backbones when available?. If the later, does the NBN
pay the existing fibre networks for traffic, or is there some sort of
mutual agreement to let pass traffic free of charge in exchange for
the use of each other´s network segments?.

Thanks
FC