In some instances, but possibly not all, the gigabit-ready physical infrastructure installed for a next best technology connection will also be capable of supporting a gigabit-capable connection.
ffibr optig, ceblau neu wifrau neu gysylltiad offer di-wifr a fydd yn darparu band eang sy’n gallu delio â gigadidau), bydd yn rhaid iddo osod dwy set o seilwaith ffisegol.