Australia’s government-run National Broadband Network (NBN) has rolled out DOCSIS 3.1 network technologies from Arris – implying concerns about falling short of yet more targets set out for the country’s mammoth broadband upgrade project. On first impressions, the announcement seems to paint both NBN and its vendor suppliers in a bad light, leaving it down to us to clarify what NBN nor Arris have – that Arris is supplying products for the existing HFC broadband network while the involvement of Adtran, which was selected to supply G.fast products last year, is exclusive to its new fiber to the curb network. NBN’s Executive Manager of Corporate Media, Tony Brown, responded to Faultline Online Reporter’s calls for clarity, saying, “We have been…