What protocol does NSX-T use to establish communication between components within the NSX architecture?

The NSX Message Bus serves as the communication backbone within the NSX-T architecture. This protocol enables various NSX components, such as the NSX Manager, edge nodes, and transport nodes, to exchange control and operational information efficiently. The Message Bus facilitates message passing and ensures that all components are synchronized regarding changes in the network environment, policy updates, and other critical information.

This protocol is pivotal for maintaining an up-to-date state across the NSX environment, allowing for real-time communication between distributed components. It allows for the scaling of NSX components without the need for complex point-to-point communication methods, promoting efficiency in managing network services.

In contrast, while other options like GRE and VXLAN are important technologies used within NSX for network tunneling and overlay networking, they do not specifically relate to the communication between NSX components themselves. The use of the NSX Control Protocol is also not accurate as it primarily pertains to the management of distributed routers and does not encompass the broader communication scope enabled by the NSX Message Bus.