That result—The intended VRF shows both the subnet interface and reachable next-hop route while unrelated VRFs remain isolated—concerns VRF route-context configuration. Routes and interfaces are looked up within the relevant VRF; a default route in a different table cannot repair a missing path. It can be healthy even while the current BPDU Guard at edge ports problem remains.

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.

This would validate SSID-to-forwarding path consistency, not BPDU Guard at edge ports. Wireless association is only the first hop; downstream tunnel, VLAN and gateway mappings must agree for application access. It is therefore insufficient acceptance evidence for the reported condition.

That action—Inspect STP port roles and topology before overriding a blocked redundant link—is relevant to spanning-tree blocked forwarding. A correctly blocked path may be essential loop prevention; unblocking without analyzing topology can trigger broadcasts and MAC instability. It does not correct the observed physical layer link fault condition.

DHCP snooping restricts untrusted hosts from responding as servers and can help preserve legitimate addressing information on the VLAN. Apply DHCP snooping with trusted server-facing ports and untrusted client-facing ports. would address unauthorized DHCP server, but the reported facts instead point to physical layer link fault. That change would leave the actual requirement unresolved.

The alternative targets MAC learning and unintended loops, where rapid MAC moves and broadcast amplification indicate switching topology instability, not a problem fixed by adding a default route. It does not establish the intended physical layer link fault behavior described in the scenario.

That result—A link or peer failure test keeps supported endpoint traffic forwarded over the surviving upstream path—concerns dual-homed downstream aggregation. Hardware redundancy is ineffective if every downstream path still depends on one forwarding node or unsound Layer 2 topology. It can be healthy even while the current VSF versus VSX platform planning problem remains.

This would validate OSPF area design, not VSF versus VSX platform planning. Area design controls link-state information distribution, and nonbackbone areas normally connect through Area 0 via appropriate routers. It is therefore insufficient acceptance evidence for the reported condition.

A higher RSSI does not remove contention; channel planning, cell sizing and client density are needed to increase effective capacity. The indicated result—the load test shows reduced channel utilization and improved client throughput at the documented peak concurrency—checks a different mechanism and would not confirm the required VSF versus VSX platform planning outcome.

The alternative targets API paging and rate limits, where management APIs may return segmented data or throttle callers, so automation must recognize incomplete and transient outcomes instead of silently succeeding. It does not establish the intended baseline interface health metrics behavior described in the scenario.

Network device health does not establish application experience; end-to-end synthetic tests expose DNS, transport and service delays along the client path. Use UXI-style synthetic experience testing from representative user locations. would address UXI application tests, but the reported facts instead point to baseline interface health metrics. That change would leave the actual requirement unresolved.

That action—Deploy supported Network Analytics Engine agents with event conditions and response actions—is relevant to NAE event rules on AOS-CX. AOS-CX NAE provides locally evaluated telemetry/event logic; defining useful triggers matters more than merely enabling generic monitoring. It does not correct the observed baseline interface health metrics condition.

That result—RADIUS requests and responses traverse the approved path and the client reaches its intended authorized role—concerns RADIUS server reachability. A silent RADIUS transport failure prevents normal authentication regardless of whether the user certificate or role rules are correct. It can be healthy even while the current longest-prefix route selection problem remains.

Traffic bound for other subnets needs a reachable Layer 3 next hop; a functioning local broadcast domain does not provide routing. The indicated result—the client ARPs or resolves the correct first hop and successfully reaches an approved remote subnet—checks a different mechanism and would not confirm the required longest-prefix route selection outcome.

This would validate DNS mistaken for routing failure, not longest-prefix route selection. If IP connectivity works but hostname access fails, DNS queries, responses or resolver policy may be broken despite healthy network routes. It is therefore insufficient acceptance evidence for the reported condition.

This would validate ACL deny versus service outage, not MAC authentication fallback fault. An ACL can block selected Layer 4 flows while other connectivity remains healthy; removing all controls is an unsafe shortcut. It is therefore insufficient acceptance evidence for the reported condition.

That result—The intended peer-access policy is confirmed and permitted test clients connect while prohibited peers remain isolated—concerns client isolation and peer access. Client isolation can intentionally prevent peer-to-peer wireless communication despite successful association, addressing and external reachability. It can be healthy even while the current MAC authentication fallback fault problem remains.

A data VLAN or management group cannot correct a switch power budget that denies the PD enough electrical power. The indicated result—the powered endpoint runs at its intended mode and PoE usage remains below supported allocation limits—checks a different mechanism and would not confirm the required MAC authentication fallback fault outcome.

API access is a privileged operational interface; overbroad or leaked tokens can compromise configuration and monitoring data. Use narrowly authorized API credentials and protect their storage and renewal lifecycle. would address REST API authentication boundaries, but the reported facts instead point to alert correlation and noise reduction. That change would leave the actual requirement unresolved.

The alternative targets NAE event rules on AOS-CX, where AOS-CX NAE provides locally evaluated telemetry/event logic; defining useful triggers matters more than merely enabling generic monitoring. It does not establish the intended alert correlation and noise reduction behavior described in the scenario.

That action—Configure supported port mirroring for the target traffic direction and destination capture interface—is relevant to port mirroring for packet capture. A capture tool sees only frames delivered to it; a correctly scoped mirror copies relevant ingress or egress traffic without changing production forwarding. It does not correct the observed alert correlation and noise reduction 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 LAG capacity and hash distribution outcome.

This would validate traffic policing versus shaping, not LAG capacity and hash distribution. Traffic shaping delays packets to smooth bursts, whereas policing enforces a rate by dropping or remarking nonconforming traffic; operational tradeoffs differ. It is therefore insufficient acceptance evidence for the reported condition.

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 LAG capacity and hash distribution problem remains.

That action—Create a detailed port, VLAN, power and uplink mapping for implementation—is relevant to low-level port map. Physical installation and initial configuration depend on explicit interface-level intent; ambiguities produce swapped services or accidental trunk exposure. It does not correct the observed firmware feature-support planning condition.

VSF forms a virtual switch with supported stacking members; VSX coordinates two peers while retaining separate control planes, so support and failure domains differ. Select VSF or VSX based on supported switch family and the required control-plane model. would address VSF versus VSX platform planning, but the reported facts instead point to firmware feature-support planning. That change would leave the actual requirement unresolved.

The alternative targets RADIUS service resilience, where identity services become campus availability dependencies; redundant switches cannot authenticate users when all RADIUS paths fail. It does not establish the intended firmware feature-support planning behavior described in the scenario.

That result—RADIUS requests and responses traverse the approved path and the client reaches its intended authorized role—concerns RADIUS server reachability. A silent RADIUS transport failure prevents normal authentication regardless of whether the user certificate or role rules are correct. It can be healthy even while the current AP radio disabled or unsupported channel problem remains.

A configured SVI cannot act as the client gateway without operational Layer 2 underlay and correct interface state. The indicated result—the VLAN interface becomes operational with expected active members and responds to approved gateway tests—checks a different mechanism and would not confirm the required AP radio disabled or unsupported channel outcome.

This would validate EAP-TLS trust-chain failure, not AP radio disabled or unsupported channel. 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.

That action—Stage AAA changes using representative client test groups and a recoverable policy path—is relevant to AAA change coordination. Identity changes impact access before network routing tests can begin; testing distinct client classes limits unintended lockouts. It does not correct the observed certificate expiry monitoring condition.

The alternative targets configuration revision and approval history, where auditability requires associating control-plane changes with an identity, time, reason and prior state, not just the new value. It does not establish the intended certificate expiry monitoring behavior described in the scenario.

Recovery decisions based on elapsed time and service impact are more reliable than an operator's improvised judgment under incident pressure. Use predefined change success, pause and rollback thresholds during implementation. would address change freeze and backout criteria, but the reported facts instead point to certificate expiry monitoring. That change would leave the actual requirement unresolved.