Which node stores endpoint ID information within the fabric host-tracking database?

The edge node is responsible for storing endpoint ID information within the fabric host-tracking database. In a network fabric, edge nodes are positioned at the boundary where endpoints connect, making them crucial for identifying and tracking connected devices, or endpoints.

The edge node maintains a database of endpoint identifiers (IDs) which include details about the devices such as their MAC addresses and IP addresses. This tracking capability is essential for implementing advanced networking features, such as policies for network access and path computation, ensuring that the appropriate security and QoS policies can be applied to the endpoints.

In contrast, border nodes primarily manage external network traffic and connections to other networks, while intermediate nodes function primarily as transit points within the fabric and do not inherently track endpoint identifiers. Control plane nodes are responsible for the overall management and control function of the network but do not directly store endpoint ID information in the host-tracking database. Hence, the edge node is uniquely positioned to perform the function of tracking and storing endpoint information within the fabric.