The alternative targets missing default gateway, where traffic bound for other subnets needs a reachable Layer 3 next hop; a functioning local broadcast domain does not provide routing. It does not establish the intended ACL deny versus service outage behavior described in the scenario.

That action—Verify the authorized non-802.1X identity path and its restricted fallback enforcement—is relevant to MAC authentication fallback fault. Endpoints without a supported supplicant need a deliberate alternative classification mechanism, not general unrestricted VLAN access. It does not correct the observed ACL deny versus service outage condition.

IPv4 ARP safeguards do not inspect ICMPv6 router announcements; RA protection constrains unauthorized router information on client segments. Apply appropriate IPv6 RA protection on untrusted access ports. would address IPv6 router-advertisement spoofing, but the reported facts instead point to ACL deny versus service outage. That change would leave the actual requirement unresolved.

Infrastructure availability is necessary but not sufficient for usable service; end-to-end user journeys expose service dependencies beyond device health. Include client-side application reachability and response measures in performance assessment. would address client experience versus device uptime, but the reported facts instead point to energy and utilization efficiency. That change would leave the actual requirement unresolved.

The alternative targets LAG capacity and hash distribution, where standard link aggregation typically hashes an individual flow onto one member to avoid reordering; aggregate bandwidth benefits many flows more than one. It does not establish the intended energy and utilization efficiency behavior described in the scenario.

That action—Retain mandatory authorization and segmentation controls while optimizing forwarding or QoS—is relevant to security-preserving optimization. A performance gain is not acceptable if it weakens required access boundaries; improvements must meet both service and security acceptance criteria. It does not correct the observed energy and utilization efficiency condition.

A reliable voice WLAN needs usable signal and timely authentication/roaming behavior between neighboring cells, not maximum isolated AP range. Design cell overlap and roaming characteristics to support application handoff requirements. would address roaming voice coverage overlap, but the reported facts instead point to RF survey and building materials. That change would leave the actual requirement unresolved.

That action—Capture application latency, jitter, loss and priority requirements as distinct design constraints—is relevant to critical application traffic profile. Real-time applications can fail with adequate average throughput when contention increases delay or jitter; requirement gathering must distinguish traffic classes. It does not correct the observed RF survey and building materials condition.

The alternative targets address pool capacity, where more APs cannot solve exhaustion of the IP-address pool; usable addresses, lease duration and peak devices must be evaluated together. It does not establish the intended RF survey and building materials behavior described in the scenario.

An unsupported or poorly coupled optical path prevents reliable Ethernet signalling regardless of correct routing or authentication configuration. The indicated result—supported optics show acceptable diagnostics and stable link state across a representative traffic test—checks a different mechanism and would not confirm the required incorrect RADIUS role result outcome.

That result—A moving client transitions APs with acceptable interruption duration while retaining approved access—concerns roaming reassociation delay. Roaming quality depends on usable overlap and timely client/security transitions; stationary speed tests cannot diagnose roaming interruption. It can be healthy even while the current incorrect RADIUS role result problem remains.

This would validate EAP-TLS trust-chain failure, not incorrect RADIUS role result. EAP-TLS relies on a trusted certificate path; successful network reachability does not bypass expired or unknown issuing authorities. It is therefore insufficient acceptance evidence for the reported condition.

This would validate VSF versus VSX platform planning, not acceptance of WLAN security and mobility. VSF forms a virtual switch with supported stacking members; VSX coordinates two peers while retaining separate control planes, so support and failure domains differ. It is therefore insufficient acceptance evidence for the reported condition.

That result—Administrative access tests allow authorized management sources and reject unauthorized clients with attributable audit events—concerns management-plane security. Management interfaces and privileged control operations need narrower access than ordinary client traffic to reduce compromise and configuration risk. It can be healthy even while the current acceptance of WLAN security and mobility problem remains.

Product capabilities and configuration syntax depend on supported hardware and software releases; a feature described in another model's guide may be unavailable. The indicated result—the compatibility matrix references the correct device families and supported release before installation begins—checks a different mechanism and would not confirm the required acceptance of WLAN security and mobility outcome.

Uncontrolled Ethernet loops replicate broadcasts and destabilize MAC learning; redundant links require a mechanism to block or logically aggregate unsafe cycles. The indicated result—STP topology is stable, with intentional root and port roles and no recurring MAC-flap or broadcast-storm indications—checks a different mechanism and would not confirm the required BPDU Guard at edge ports outcome.

That result—A representative approved device completes certificate-based enterprise authentication and receives its authorized network role—concerns corporate EAP-TLS SSID. EAP-TLS verifies certificate-based identities through the configured authentication system; a shared PSK does not give per-device certificate identity. It can be healthy even while the current BPDU Guard at edge ports problem remains.

This would validate SVI inter-VLAN gateway, not BPDU Guard at edge ports. VLAN configuration creates Layer 2 separation; inter-subnet communication requires appropriate Layer 3 interfaces, addressing and policy. It is therefore insufficient acceptance evidence for the reported condition.

That result—Consumption and service-quality metrics improve outside peak hours without violating coverage or capacity objectives—concerns energy and utilization efficiency. Right-sized operation reduces unnecessary resource use, but energy or capacity savings must not remove availability when users actually need the network. It can be healthy even while the current periodic baseline refresh problem remains.

This would validate failure recovery time objective, not periodic baseline refresh. Resilience depends on recovery behavior, routing/bridging convergence and application tolerance, not the number of installed redundant devices. It is therefore insufficient acceptance evidence for the reported condition.

QoS can prioritize selected packets when contention occurs but cannot create bandwidth; correct queue treatment reduces latency for critical applications. The indicated result—under a reproducible congestion test, voice latency and jitter meet targets while other traffic remains serviceable—checks a different mechanism and would not confirm the required periodic baseline refresh outcome.

A successful authentication indicates identity acceptance, while authorization attributes and local mapping determine permitted services. Compare RADIUS authorization attributes with actual assigned session role and policy. would address incorrect RADIUS role result, but the reported facts instead point to RF interference and retries. That change would leave the actual requirement unresolved.

The alternative targets physical layer link fault, where repeated link transitions and frame errors point to Layer 1 quality or negotiation rather than an unseen WLAN authentication issue. It does not establish the intended RF interference and retries behavior described in the scenario.

That action—Check the endpoint's 802.1X supplicant configuration and initial EAPOL exchange—is relevant to 802.1X supplicant disabled. An authentication server cannot authorize an endpoint that never initiates the intended EAP handshake on the controlled link. It does not correct the observed RF interference and retries condition.

VSF presents supported physical members as a virtual switch while retaining operational requirements for healthy stacking links and member state. Provision the supported VSF stack topology, member roles and intermember links consistently. would address VSF member management, but the reported facts instead point to OSPF adjacency prerequisites. That change would leave the actual requirement unresolved.

That action—Keep an appropriate spanning-tree or supported loop-free design across redundant Layer 2 paths—is relevant to spanning-tree loop prevention. Uncontrolled Ethernet loops replicate broadcasts and destabilize MAC learning; redundant links require a mechanism to block or logically aggregate unsafe cycles. It does not correct the observed OSPF adjacency prerequisites condition.

The alternative targets OSPF passive interfaces, where a passive interface can advertise its connected prefix through the process while avoiding unwanted OSPF hello exchanges toward endpoints. It does not establish the intended OSPF adjacency prerequisites behavior described in the scenario.

Resilience depends on recovery behavior, routing/bridging convergence and application tolerance, not the number of installed redundant devices. The indicated result—a forced component failure restores approved traffic within a measured recovery-time objective—checks a different mechanism and would not confirm the required security-preserving optimization outcome.

That result—Pilot results meet both targeted improvement and adjacent-service safeguards before broader deployment—concerns optimization with rollback. A change may help one metric while degrading another; phased deployment and recovery thresholds protect production service continuity. It can be healthy even while the current security-preserving optimization problem remains.

This would validate LAG capacity and hash distribution, not security-preserving optimization. Standard link aggregation typically hashes an individual flow onto one member to avoid reordering; aggregate bandwidth benefits many flows more than one. It is therefore insufficient acceptance evidence for the reported condition.

That result—Guest clients receive approved services and internet access while tests deny connections to protected internal networks—concerns guest network isolation requirements. An SSID name is not a security boundary; guest users need controlled authorization and routes that limit access to internal resources. It can be healthy even while the current management-plane security problem remains.

Successful authentication proves identity; separate authorization decisions determine permitted destinations, services and segmentation. The indicated result—the authorization matrix maps identity conditions to effective user roles and confirms forbidden access is denied—checks a different mechanism and would not confirm the required management-plane security outcome.

This would validate EAP-TLS certificate lifecycle, not management-plane security. EAP-TLS authenticates with certificates, so healthy network transport alone cannot correct absent trust, expired credentials or unmanaged key lifecycle. It is therefore insufficient acceptance evidence for the reported condition.