The effective route is chosen from matching network destinations; a general route to a transit hub does not automatically override a more-specific peer route; that addresses destination prefix match within subnet routing, rather than prefix-length precedence over broad backup preference.

A restored adjacency may not be the preferred route if local preference, AS-path, or more-specific routes still favor VPN; this belongs to post-recovery BGP path preference assessment, while the problem is prefix-length precedence over broad backup preference.

A broad propagated aggregate does not supersede a more-specific prefix even if both are valid transit routes; this changes longest-prefix path selection in transit routing, not the necessary prefix-length precedence over broad backup preference.

Same-prefix route priority differs from longest-prefix selection and determines which eligible attachment receives traffic; that addresses equal-prefix route source precedence inside TGW, rather than destination prefix match within subnet routing.

More-specific destination routes must exist in the source subnet table; peering acceptance alone does not provide them; this changes effective subnet next hop for peered VPC traffic, not the necessary destination prefix match within subnet routing.

In the prefix-length precedence over broad backup preference workflow, route selection starts with prefix specificity, so an aggregate path preference may not override a more-specific destination learned elsewhere; the current case needs destination prefix match within subnet routing.

More-specific destination routes must exist in the source subnet table; peering acceptance alone does not provide them; that addresses effective subnet next hop for peered VPC traffic, rather than stateful return-path symmetry and the ingress TGW table.

Physical transport can remain up while BGP sessions reset because of control-plane reachability, authentication, or timers; this belongs to correlating hybrid BGP flaps with control-plane causes, while the problem is stateful return-path symmetry and the ingress TGW table.

This produces longest-prefix path selection in transit routing: A broad propagated aggregate does not supersede a more-specific prefix even if both are valid transit routes; the stem instead tests stateful return-path symmetry and the ingress TGW table.

Service consumers address the endpoint service; maintaining a viable provider backend avoids recreating customer-side connectivity; that addresses continuity of provider-managed PrivateLink service endpoints, rather than distinguishing PrivateLink plumbing from provider backend health.

Conditional DNS forwarding depends on the endpoint ENIs being able to reach external DNS targets, regardless of the rule's existence; this belongs to outbound endpoint network permission for resolver forwarding, while the problem is distinguishing PrivateLink plumbing from provider backend health.

In the early detection of networking resource exhaustion workflow, quota visibility detects approaching configured limits so requests or architecture changes can occur before a hard failure; the current case needs distinguishing PrivateLink plumbing from provider backend health.

Conditional DNS forwarding depends on the endpoint ENIs being able to reach external DNS targets, regardless of the rule's existence; this belongs to outbound endpoint network permission for resolver forwarding, while the problem is early detection of networking resource exhaustion.

Link aggregation provides per-member resilience at one location, but the available throughput shrinks when a member fails; this changes LAG degradation versus total outage, not the necessary early detection of networking resource exhaustion.

In the distinguishing PrivateLink plumbing from provider backend health workflow, endpoint DNS and interface ENIs can be healthy even if the provider's actual application targets fail health checks or do not accept the port; the current case needs early detection of networking resource exhaustion.

DX gateway allowed prefixes control what is originated or filtered, and their effect differs between transit-gateway and VGW associations; this belongs to diagnosing changed Direct Connect route advertisements, while the problem is LAG degradation versus total outage.

Prefix-specific withdrawal with the session alive points to routing policy or origination changes rather than a loss of the physical circuit; this changes route-specific BGP advertisement troubleshooting, not the necessary LAG degradation versus total outage.

In the early detection of networking resource exhaustion workflow, quota visibility detects approaching configured limits so requests or architecture changes can occur before a hard failure; the current case needs LAG degradation versus total outage.

This produces prefix-length precedence over broad backup preference: Route selection starts with prefix specificity, so an aggregate path preference may not override a more-specific destination learned elsewhere; the stem instead tests LAG degradation versus total outage.

Prefix-scoped BGP policy removes the obsolete reachability advertisement without tearing down the entire hybrid adjacency; that addresses selective removal of an obsolete BGP prefix, rather than prefix-filter diagnosis when BGP peering is established.

Prefix-specific withdrawal with the session alive points to routing policy or origination changes rather than a loss of the physical circuit; this changes route-specific BGP advertisement troubleshooting, not the necessary prefix-filter diagnosis when BGP peering is established.

In the post-recovery BGP path preference assessment workflow, A restored adjacency may not be the preferred route if local preference, AS-path, or more-specific routes still favor VPN; the current case needs prefix-filter diagnosis when BGP peering is established.

More-specific destination routes must exist in the source subnet table; peering acceptance alone does not provide them; that addresses effective subnet next hop for peered VPC traffic, rather than controlled decommissioning of inter-VPC connectivity.

The effective route is chosen from matching network destinations; a general route to a transit hub does not automatically override a more-specific peer route; this changes destination prefix match within subnet routing, not the necessary controlled decommissioning of inter-VPC connectivity.

In the VPC route-table cleanup after gateway migration workflow, gateway detachment changes available next hops; legacy route propagation and explicit routes must be reconciled for the new connectivity pattern; the current case needs controlled decommissioning of inter-VPC connectivity.

The effective route is chosen from matching network destinations; a general route to a transit hub does not automatically override a more-specific peer route; that addresses destination prefix match within subnet routing, rather than VPC route-table cleanup after gateway migration.

Static VPC route targets do not automatically follow replaced network components, so an obsolete target breaks outbound forwarding; this belongs to repair of dangling VPC static routes, while the problem is VPC route-table cleanup after gateway migration.

Route tables may retain references to previous attachment identities; routing must target a currently attached next hop; this changes stale transit route targets after attachment replacement, not the necessary VPC route-table cleanup after gateway migration.

Network ACLs independently evaluate inbound and outbound packets; unlike stateful security groups, they do not infer permitted response traffic; that addresses ephemeral response-path requirements in stateless ACLs, rather than diagnosing admission failure from VPC flow metadata.

Traffic mirroring copies eligible packets to a collector for protocol-level inspection that flow logs cannot perform; this belongs to deep packet analysis of mirrored instance traffic, while the problem is diagnosing admission failure from VPC flow metadata.

In the separating packet acceptance from HTTP service failure workflow, accepted network flows do not guarantee a successful HTTP response; layer-seven errors require service and target investigation; the current case needs diagnosing admission failure from VPC flow metadata.

Traffic mirroring copies eligible packets to a collector for protocol-level inspection that flow logs cannot perform; this belongs to deep packet analysis of mirrored instance traffic, while the problem is separating packet acceptance from HTTP service failure.

Flow-log action provides packet-acceptance evidence, while the applicable security group and network ACL configurations identify the likely admission control to investigate; this changes diagnosing admission failure from VPC flow metadata, not the necessary separating packet acceptance from HTTP service failure.

In the transport reset correlation for NLB-backed services workflow, transport-layer reset counters help separate load-balancer and target behaviors from generic HTTP response metrics; the current case needs separating packet acceptance from HTTP service failure.