Tunnel endpoints are essential in VMware NSX-T for managing network connectivity across different environments. They handle the encapsulation and decapsulation of network traffic as it moves between overlay and underlay networks. Here are the key aspects of tunnel endpoints in NSX-T. Its uses in both East-West as well as North-South traffic communication.
Geneve Tunneling Protocol: NSX-T uses the Geneve tunneling protocol for encapsulating overlay traffic. Geneve offers a flexible and extensible framework, ensuring efficient and secure communication among virtual machines (VMs) and NSX-T logical networks.
Tunnel Endpoint (TEP) IP Addresses: Each hypervisor host or NSX-T Edge node is assigned a unique TEP IP address as its tunnel endpoint. These addresses are used for encapsulating and decapsulating overlay traffic between different endpoints.
Overlay Transport Zone (OTZ): An Overlay Transport Zone defines the scope of network communication within an overlay infrastructure. TEP IP addresses are assigned to hypervisor hosts or NSX-T Edge nodes within an Overlay Transport Zone, facilitating proper encapsulation and routing of overlay traffic within that zone.
TEP (VXLAN Tunnel Endpoint): Tunnel Endpoint (TEP) is a software component on a hypervisor host or NSX-T Edge node responsible for encapsulating and decapsulating overlay traffic. TEPs are associated with TEP IP addresses and enable communication between overlay and underlay networks.
Gateway TEPs: In NSX-T , Gateway Tunnel Endpoint (Gateway TEP) represents the TEP IP address associated with an NSX-T Edge node functioning as a gateway. Gateway TEPs route traffic between overlay and external networks, establishing connectivity with physical or virtual networks beyond the NSX-T environment.
It's important to note that specific configurations and functionalities of tunnel endpoints in NSX-T may vary depending on deployment models, network architecture, and use cases. For comprehensive information on tunnel endpoints and their implementation in NSX-T .
I recommend consulting VMware's official documentation, such as the NSX-T Administration Guide and the NSX-T Design Guide.
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