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CDN access logs can distinguish edge-visible request patterns from only origin server events. For the stated conditions, traffic counters at interfaces and load balancers capture different paths and may use different periods. The more specific mechanism is cloudWatch metrics have service-specific definitions, units and aggregation windows.

The load balancer's status can differ from the response produced or not produced by a backend target. The decisive technical distinction is cloudWatch metrics have service-specific definitions, units and aggregation windows; traffic counters at interfaces and load balancers capture different paths and may use different periods.

Flow-log aggregates are not equivalent to packet captures and omit individual packet payloads. That property alone cannot account for the reported symptom; traffic counters at interfaces and load balancers capture different paths and may use different periods.

A new attachment ID is not automatically equivalent to an old one for route visibility. The needed control instead targets Transit Gateway route quotas may be exhausted by unnecessarily granular route propagation; it succeeds when route counts fall within limits while necessary prefixes remain reachable.

A route-table entry is not proof the next-hop attachment remains operational. The needed control instead targets Transit Gateway route quotas may be exhausted by unnecessarily granular route propagation; it succeeds when route counts fall within limits while necessary prefixes remain reachable.

A TGW attachment can be connected yet lack a path under its new routing-domain membership. In this situation, route density consumes finite hub capacity independently from overall bandwidth throughput. The proposed change does not ensure route counts fall within limits while necessary prefixes remain reachable.

Peering creates a potential network path while security policy must separately permit service ports. That adjustment does not address the controlling condition: an accepted interface endpoint cannot produce working application data when the provider has no healthy backend. Verify consumer connections reach a healthy provider target through the private endpoint.

Full routed connectivity cannot uniquely identify two networks advertising identical address ranges. The needed control instead targets privateLink connectivity depends on the provider's supported endpoint service and healthy backing NLB targets; it succeeds when consumer connections reach a healthy provider target through the private endpoint.

A gateway endpoint's route works only for route tables explicitly associated with it. In this situation, an accepted interface endpoint cannot produce working application data when the provider has no healthy backend. The proposed change does not ensure consumer connections reach a healthy provider target through the private endpoint.

A private instance cannot use an Internet Gateway directly without public address and appropriate routing. The needed control instead targets private DNS can associate a supported PrivateLink endpoint service hostname with consumer endpoint resolution; it succeeds when clients using the original service hostname resolve the endpoint privately and connect.

An interface endpoint can be healthy yet unreachable if its ENI security policy drops the client connection. In this situation, private endpoint DNS behavior is separate from merely establishing the private network interface. The proposed change does not ensure clients using the original service hostname resolve the endpoint privately and connect.

A gateway endpoint's route works only for route tables explicitly associated with it. That adjustment does not address the controlling condition: private endpoint DNS behavior is separate from merely establishing the private network interface. Verify clients using the original service hostname resolve the endpoint privately and connect.

A gateway endpoint's route works only for route tables explicitly associated with it. That property alone cannot account for the reported symptom; service scoping reduces blast radius compared with unrestricted full VPC network connectivity.

An interface endpoint can be healthy yet unreachable if its ENI security policy drops the client connection. The reported evidence instead concerns privateLink consumer interfaces expose a service-specific endpoint without providing entire provider CIDR routes: service scoping reduces blast radius compared with unrestricted full VPC network connectivity.

Unidirectional route configuration can lead to failed return traffic even when peering is active. The decisive technical distinction is privateLink consumer interfaces expose a service-specific endpoint without providing entire provider CIDR routes; service scoping reduces blast radius compared with unrestricted full VPC network connectivity.

A valid network route cannot compensate for missing administrative permission to manage the shared resource. In this situation, peer connection state does not automatically propagate remote VPC CIDR changes. The proposed change does not ensure cross-Region traffic follows the peer attachment after routes are synchronized.

An association change can alter BGP-originated reachability without deleting the physical VIF. The needed control instead targets inter-Region TGW peering needs matching explicit static routes toward the peer attachment; it succeeds when cross-Region traffic follows the peer attachment after routes are synchronized.

Multiple healthy links can compete for the same destination; configuration controls the selected route. In this situation, peer connection state does not automatically propagate remote VPC CIDR changes. The proposed change does not ensure cross-Region traffic follows the peer attachment after routes are synchronized.

Packets not sent to the stateful engine cannot be filtered by its configured stateful rules. It does not directly achieve the required result: the protected resource appears enrolled and advanced response mechanisms are available where supported. The constraint is that standard service protections and an Advanced paid protection subscription have different coverage and support features.

Group references bind access to associated workload identities rather than static IP lists. The needed control instead targets shield Advanced provides additional DDoS protection features for enrolled supported resources; it succeeds when the protected resource appears enrolled and advanced response mechanisms are available where supported.

Rate limits mitigate high-volume application requests based on request attributes, not just TCP handshake state. That adjustment does not address the controlling condition: standard service protections and an Advanced paid protection subscription have different coverage and support features. Verify the protected resource appears enrolled and advanced response mechanisms are available where supported.

Peering routes do not permit arbitrary traversal through another VPC's internet or VPN gateway. In this situation, full routed connectivity cannot uniquely identify two networks advertising identical address ranges. The proposed change does not ensure the final address plan has no conflicting private destination prefixes.

Connectivity is driven by policy evaluation, not merely existence of a physical or logical attachment. In this situation, full routed connectivity cannot uniquely identify two networks advertising identical address ranges. The proposed change does not ensure the final address plan has no conflicting private destination prefixes.

Segment isolation remains the default until explicit policy controls permit communication. In this situation, full routed connectivity cannot uniquely identify two networks advertising identical address ranges. The proposed change does not ensure the final address plan has no conflicting private destination prefixes.

A successful inbound rule does not automatically authorize reply packets under a stateless ACL. That property alone cannot account for the reported symptom; rate limits mitigate high-volume application requests based on request attributes, not just TCP handshake state.

Removing ingress permissions alone does not stop instances initiating outbound connections. The reported evidence instead concerns AWS WAF rate-based rules can count and act on requests matching configured aggregation criteria: rate limits mitigate high-volume application requests based on request attributes, not just TCP handshake state.

Endpoint private addressing does not automatically enforce least-privilege client access. For the stated conditions, rate limits mitigate high-volume application requests based on request attributes, not just TCP handshake state. The more specific mechanism is AWS WAF rate-based rules can count and act on requests matching configured aggregation criteria.

A viable physical circuit may carry no traffic for a destination whose specific route was withdrawn. That property alone cannot account for the reported symptom; session tracking breaks when outbound and return packets are steered through nonsharing firewall states.

An established IKE security association can coexist with filtered or misrouted application packets. The reported evidence instead concerns appliance-mode routing and symmetric inspection paths protect flow state across transit attachment AZs: session tracking breaks when outbound and return packets are steered through nonsharing firewall states.

Multiple healthy links can compete for the same destination; configuration controls the selected route. That property alone cannot account for the reported symptom; session tracking breaks when outbound and return packets are steered through nonsharing firewall states.

Private zone visibility follows VPC associations rather than AWS organization membership alone. The needed control instead targets resolver forwarding rule selection depends on matching domain names and the most specific applicable suffix; it succeeds when queries for db.corp.example.com reach the designated specialized corporate resolver.

Split-horizon configuration can intentionally prevent public answers from leaking into an internal namespace. In this situation, DNS rule selection uses domain-specific matching rather than random round-robin among unrelated rules. The proposed change does not ensure queries for db.corp.example.com reach the designated specialized corporate resolver.

A single DNS endpoint address can become an availability bottleneck and may violate service requirements. The needed control instead targets resolver forwarding rule selection depends on matching domain names and the most specific applicable suffix; it succeeds when queries for db.corp.example.com reach the designated specialized corporate resolver.