AT&T’s network backbone is now, at least partially, running on disaggregated, core routing software from DriveNets, CTO Andre Fuetsch announced today at the Open Networking & Edge Summit.
The operator submitted specifications for a distributed disaggregated chassis (DCC) white box router to the Open Compute Project (OCP) exactly one year ago. Based on Broadcom’s Jericho2 system-on-a-chip (SoC), the corresponding software can “gracefully scale from four terrabits per second to 192 terrabits per second,” Fuetsch said.
“We have now deployed a next generation IP MPLS core routing platform into our production network based on this open software,” he said. DriveNets, which Fuetsch described as a “disruptive supplier,” is providing the network operating system software for that core use case and a set of traffic engineering features for reliable and efficient MPLS transport, he explained.
The entire stack of core routing hardware and software has been rewritten from scratch and provisioned as microservices and containers to handle myriad workloads for specific router functions, DriveNets CEO Ido Susan told jobs with computer science degree in a phone interview.
“You find yourself with multi workloads sharing the same chip and simple database, but all the components of the software of the routing function are separated — database, control, and the management orchestration,” he said. The data plane and control plane are also disaggregated with data plane functions running on white box hardware and the control plane runctions running via software on x86 servers, he added.
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