{"id":"internal-nlb-cannot-mix-ig-and-neg","text":"Internal passthrough NLB cannot mix instance group and zonal NEG (`GCE_VM_IP`) backends on the same backend service.","truth_value":"IN","source":"entries/2026/03/10/lb-internal.md","source_url":"","source_hash":"049335b111c1b129","justifications":[],"dependents":[],"metadata":{},"explanation":{"steps":[{"node":"internal-nlb-cannot-mix-ig-and-neg","truth_value":"IN","reason":"premise"}]}}