VLANVizor

VLANVizor is a web + desktop app that turns real switch configs into an interactive switching map you can actually reason about. You paste configs (Cisco/Arista/Juniper-style), or connect read-only via SSH, and it builds a topology view focused on switching concepts: VLAN membership, trunk allowed lists, native VLAN mismatches, STP root placement, port-channels, and L2 loops. It then runs deterministic checks (not hand-wavy “AI guesses”) to flag the exact lines that cause common outages: VLAN missing on a trunk, inconsistent LACP settings, BPDU guard misapplied, or STP blocked links you didn’t expect. This is not a full-blown NMS replacement; it’s a focused “switching sanity” tool for audits, migrations, and incident triage. Export reports for change reviews and compliance evidence. Optional AI assists with plain-English explanations and suggested remediation steps, but the core engine stays rules-based for reliability.