The host's LLDP never sees the BMC's own port. A port's cable now comes from LLDP first (what is really there), then from a cable recorded in NetBox on the machine's device (read with the layout, traced through patch panels to the far interface via connected_endpoints), then from one entered by hand (POST/DELETE /api/v1/cables, the pencil in the cabling list). A NetBox interface marked management-only or named like a BMC (iDRAC, iLO, XCC, IMM, IPMI, BMC, OOB, mgmt) is the machine's "bmc" port, so BMCs get their cable to the out-of-band switch. When NetBox records another switch port than LLDP sees, the port says what NetBox says. A switch whose NetBox role names out-of-band or management, or that only BMCs are cabled to, is marked OOB. In 3D the BMC cable leaves the BMC port on the back (thinner); the side panel lists every machine's ports with their source, the BMC always, and switches carry an OOB tag. Estimated switch places now go around the units placed switches take. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>