Taking the plunge into distributed access architecture (DAA) technology is a strategy the majority of cable operators – 52% to be precise – have now embarked on, according to the SCTE Cable Fiber Outlook Survey. However, given the crippling demands on networks brought about by the pandemic, vendors central to the DAA movement are increasingly questioning whether virtualization alone is enough. This is particularly true for upstream, with symmetrical video applications going from luxury to precious commodity in a matter of months. Issues around upstream were floated by Jim Walsh, Solutions Marketing Manager at Viavi, during the recent Cable Next-Gen Europe event, hosted by Light Reading. “One of the big questions right now is can we keep solving the upstream…