Description: An external network is a crucial component in network function virtualization. It refers to a network that is outside a virtual environment, allowing virtual machines to connect to the Internet or other networks. This connection is essential for communication and data exchange between virtual machines and the outside world. The external network acts as a bridge, facilitating access to resources and services in the cloud, as well as interaction with other local or remote networks. In terms of TCP/IP, the external network uses IP addresses to identify and route data traffic, ensuring that virtual machines can send and receive information efficiently. Additionally, in the context of cloud networking, the external network allows for the integration of cloud services, which is fundamental for businesses looking to leverage the scalability and flexibility offered by these solutions. Implementing an external network is also relevant for local area networks (LAN), as it enables virtual machines to communicate with physical devices on the local network. Finally, external networks are essential for establishing VPN connections, allowing users to securely access remote resources through encrypted tunnels.
