Why the need for OpenStack Quantum
As cloud providers began to build their services upon server and storage virtualization, they quickly recognized that the complexity of networks required more automation.
“This requires true networks that can broadcast and multitask to manage everything in a much more flexible way than has traditionally happened at the networking layers. That’s what OpenStack networking tackles and the value it adds,” Bryce said.
Quantum is actually the first functioning software-defined networking (SDN) northbound API, Brent Salisbury, lead network engineer at the University of Kentucky, pointed out. It allows an SDN controller to interact with higher-level management and orchestration systems — enabling a much greater degree of cloud automation and flexibility. Many SDN vendors have announced support for OpenStack Quantum through their controllers’ northbound APIs.