Azure UDR: diagnose an NVA black hole before changing routes
A production runbook to separate effective routes, next hop, NVA health, IP forwarding, policy and return path before fixing a UDR or bypassing inspection.
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effective-routes
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Azure Route Server: validate a BGP advertisement before production propagation
A production runbook for bounding a BGP change, comparing learned and advertised routes, checking effective routes, canarying one prefix, then validating or withdrawing it without destabilizing the Azure hub.
Read articleAzure route asymmetry: diagnose before changing a UDR
A production runbook for qualifying Azure asymmetric routing with effective routes, UDRs, Azure Firewall, NAT Gateway, flow logs, validation and rollback before changing route tables.
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