L2 Link Discovery for Devices Lacking Neighbor Discovery Protocol Data

NetBrain currently relies on Neighbor Discovery Protocol (NDP) data, such as CDP or LLDP, to calculate and render Layer 2 links on the topology map. When one or both connected devices do not provide this data, such as certain firewall or load balancer platforms, the L2 link is omitted from the map even when the devices reside in the same VLAN. This enhancement would allow NetBrain to derive L2 links using alternate data sources, such as MAC address tables, ARP tables, and VLAN membership correlation, when NDP data is unavailable from one or more connected devices. Customers operating mixed-vendor environments would gain complete and accurate L2 topology visibility without manual link creation, improving the reliability of network diagrams used for troubleshooting.