Which network technologies are utilized in VMware’s NSX product?

VMware's NSX product primarily utilizes STT (Scalable Test Transport) and VXLAN (Virtual Extensible LAN) as key network technologies.

VXLAN is particularly important in network virtualization because it allows the encapsulation of Ethernet frames in a UDP packet, which enables the creation of a virtual overlay network that can extend Layer 2 networks across Layer 3 infrastructure. This is beneficial for managing and segmenting traffic in a flexible and scalable manner, which is essential in multi-tenant environments.

STT, on the other hand, is a transport protocol designed specifically for network virtualization tasks. It facilitates the efficient encapsulation of packets, allowing for better performance and reduced overhead in virtualized networking scenarios.

While GRE (Generic Routing Encapsulation) and CAPWAP (Control and Provisioning of Wireless Access Points) serve specific functions in networking, they are not central to NSX's architecture or its primary focus, which centers on enabling software-defined networking through technologies such as VXLAN and STT. OpenFlow, although relevant in the context of SDN (Software-Defined Networking), is not utilized in the core functionality of NSX.

Thus, focusing on STT and VXLAN highlights the most relevant and critical networking technologies used in VMware's