reddit

“Here�s one that slipped through the cracks among all the M&A activity and FCC edicts this month; AT&T recently announced the completion of an upgrade to its U.S. core IP/MPLS backbone network, raising its per-wavelength capacity to SONET OC-768. That�s 40 Gbps, across more than 80,000 lit wavelength-miles of fiber, according to AT&T, though, given the carrier�s four-fiber routes, that number might come down to 20,000 route miles of 40 Gbps ultra long-haul DWDM�the largest such deployment in the world. This backbone is the transport foundation for all of AT&T�s Internet and IP services, wireline and wireless, for both consumer and business customers.” source...