That action—Verify compatible link speed, duplex and negotiation settings on both interface ends—is relevant to duplex and speed negotiation. Mismatched physical link parameters can create collisions or errors despite a link-up status, so higher-layer policy changes cannot repair them. It does not correct the observed physical layer link fault condition.

The VLAN used for an untagged or dynamically authorized session determines its broadcast and DHCP context; physical link state is not enough. Inspect the effective access VLAN and any role-based VLAN override on the affected port. would address access VLAN misassignment, but the reported facts instead point to physical layer link fault. That change would leave the actual requirement unresolved.

The alternative targets incorrect RADIUS role result, where a successful authentication indicates identity acceptance, while authorization attributes and local mapping determine permitted services. It does not establish the intended physical layer link fault behavior described in the scenario.

That result—STP topology is stable, with intentional root and port roles and no recurring MAC-flap or broadcast-storm indications—concerns 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 can be healthy even while the current trunk allowed VLAN list problem remains.

MAC authentication can support devices without a supplicant but is weaker than cryptographic identity, so narrow policy and inventory are essential. The indicated result—the registered device reaches only its designated services and unknown MAC identities are denied or quarantined—checks a different mechanism and would not confirm the required trunk allowed VLAN list outcome.

This would validate access port VLAN membership, not trunk allowed VLAN list. Client frames received untagged are placed in the port's access VLAN; a healthy physical link cannot compensate for wrong Layer 2 membership. It is therefore insufficient acceptance evidence for the reported condition.

This would validate AAA change coordination, not firmware compatibility dependency. Identity changes impact access before network routing tests can begin; testing distinct client classes limits unintended lockouts. It is therefore insufficient acceptance evidence for the reported condition.

That result—Positive and negative flow tests confirm approved connectivity and continuing rejection of disallowed destinations—concerns access-control change verification. Successful application traffic is only half of policy correctness; overbroad authorization can create exposure while the reported symptom appears resolved. It can be healthy even while the current firmware compatibility dependency problem remains.

An AP online indicator does not prove successful client onboarding; stage-specific events narrow diagnosis to radio, identity, addressing or portal dependencies. The indicated result—client reports identify the actual failing association or onboarding stage for affected endpoints—checks a different mechanism and would not confirm the required firmware compatibility dependency outcome.

Gateway responsibilities such as tunnel termination and role enforcement depend on the chosen software architecture and supported role. Provision each gateway with a supported network role that matches its forwarding architecture. would address gateway role deployment, but the reported facts instead point to template variable rendering. That change would leave the actual requirement unresolved.

The alternative targets VRRP gateway resilience, where a virtual first-hop gateway provides a stable client next-hop while authorized peers coordinate active forwarding after failure. It does not establish the intended template variable rendering behavior described in the scenario.

That action—Register and assign each device to the correct authorized Central organization and inventory before configuring it—is relevant to central device inventory onboarding. A functioning Ethernet link does not establish cloud-management ownership; onboarding requires the correct device identity, management association and supported connectivity. It does not correct the observed template variable rendering condition.

Changing many dependent control planes at once obscures root causes and enlarges outage blast radius; staging supplies evidence and rollback points. Break high-risk campus migration into staged, independently validated change waves. would address change-risk classification, but the reported facts instead point to low-level port map. That change would leave the actual requirement unresolved.

That action—Plan enough usable wireless airtime and spatial reuse rather than simply raising transmit power—is relevant to coverage versus capacity tradeoff. A higher RSSI does not remove contention; channel planning, cell sizing and client density are needed to increase effective capacity. It does not correct the observed low-level port map condition.

The alternative targets management-plane security, where management interfaces and privileged control operations need narrower access than ordinary client traffic to reduce compromise and configuration risk. It does not establish the intended low-level port map behavior described in the scenario.

WLAN security changes can exclude devices with unsupported cipher, authentication or protected-management-frame capabilities. The indicated result—an approved migration pilot documents compatible clients and their secure association, with a restricted alternative for unsupported endpoints—checks a different mechanism and would not confirm the required AP uplink power and negotiation outcome.

This would validate SSID role and VLAN assignment, not AP uplink power and negotiation. Authentication success is not the same as authorization; WLAN roles and VLAN selection determine where the user can forward traffic. It is therefore insufficient acceptance evidence for the reported condition.

That result—Rendered configurations contain the intended unique addresses and device settings with no unresolved placeholder values—concerns template variable rendering. Shared templates are reusable only when site-specific identity, address and port data are correctly substituted for each target device. It can be healthy even while the current AP uplink power and negotiation problem remains.

That action—Provide resilient AAA server reachability and define approved failure behavior for access enforcement—is relevant to RADIUS service resilience. Identity services become campus availability dependencies; redundant switches cannot authenticate users when all RADIUS paths fail. It does not correct the observed management-plane security condition.

An AP advertising a network does not prove that clients can authenticate, receive approved privileges or maintain application continuity while moving. Include authentication, role enforcement and roaming in the WLAN acceptance plan. would address acceptance of WLAN security and mobility, but the reported facts instead point to management-plane security. That change would leave the actual requirement unresolved.

The alternative targets 2.4 GHz interference planning, where the 2.4 GHz band has limited nonoverlapping channel choices in typical regulatory domains, so channel overlap and wide channels intensify contention. It does not establish the intended management-plane security behavior described in the scenario.

VLAN configuration creates Layer 2 separation; inter-subnet communication requires appropriate Layer 3 interfaces, addressing and policy. The indicated result—representative clients can reach their configured gateways and only permitted inter-VLAN routes operate—checks a different mechanism and would not confirm the required static route and next-hop reachability outcome.

This would validate access port VLAN membership, not static route and next-hop reachability. Client frames received untagged are placed in the port's access VLAN; a healthy physical link cannot compensate for wrong Layer 2 membership. It is therefore insufficient acceptance evidence for the reported condition.

That result—The active client session displays the correct assigned role and an explicit deny test confirms enforcement—concerns dynamic role enforcement. A RADIUS Access-Accept alone does not prove the switch or gateway applied the intended role policy to user sessions. It can be healthy even while the current static route and next-hop reachability problem remains.

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 incorrect RADIUS role result condition.

The alternative targets EAP-TLS trust-chain failure, where EAP-TLS relies on a trusted certificate path; successful network reachability does not bypass expired or unknown issuing authorities. It does not establish the intended incorrect RADIUS role result behavior described in the scenario.

A configured SVI cannot act as the client gateway without operational Layer 2 underlay and correct interface state. Check VLAN operational state and active interface membership when an SVI is down. would address SVI down due to VLAN state, but the reported facts instead point to incorrect RADIUS role result. That change would leave the actual requirement unresolved.

The alternative targets central device inventory onboarding, where a functioning Ethernet link does not establish cloud-management ownership; onboarding requires the correct device identity, management association and supported connectivity. It does not establish the intended OSPF adjacency prerequisites behavior described in the scenario.

That action—Configure and verify explicit VSX synchronization for supported shared features while managing independent settings separately—is relevant to VSX peer synchronization. VSX peers retain independent control planes and only designated supported feature sets synchronize; unchecked settings may diverge. It does not correct the observed OSPF adjacency prerequisites condition.

A virtual first-hop gateway provides a stable client next-hop while authorized peers coordinate active forwarding after failure. Configure a supported redundant virtual gateway mechanism with correct priorities and tracking. would address VRRP gateway resilience, but the reported facts instead point to OSPF adjacency prerequisites. That change would leave the actual requirement unresolved.

This would validate firmware rollout staging, not AAA change coordination. Software changes can alter forwarding, management or authentication behavior, so a limited pilot provides evidence before broad deployment. It is therefore insufficient acceptance evidence for the reported condition.

Healthy RF and RADIUS reachability cannot compensate for an expired or untrusted certificate that fails the authentication handshake. The indicated result—certificate inventory and alerts show sufficient renewal lead time and successful test authentication after renewal—checks a different mechanism and would not confirm the required AAA change coordination outcome.

That result—The maintained records identify current connections, configuration owners, network segments and the last validated change—concerns topology and documentation currency. Operational documents are useful only when they reflect the running state and its change history; stale diagrams waste troubleshooting effort. It can be healthy even while the current AAA change coordination problem remains.