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 MAC learning and unintended loops condition.

A data VLAN or management group cannot correct a switch power budget that denies the PD enough electrical power. Inspect the switch's per-port and aggregate PoE allocation against endpoint power requirements. would address power-over-Ethernet failure, but the reported facts instead point to MAC learning and unintended loops. That change would leave the actual requirement unresolved.

The alternative targets firmware-induced configuration drift, where successful reboot and version display do not establish that all intended policies and interface behaviors survived the change. It does not establish the intended MAC learning and unintended loops behavior described in the scenario.

That result—The session is assigned the approved VLAN and receives the expected subnet's gateway and address settings—concerns access VLAN misassignment. The VLAN used for an untagged or dynamically authorized session determines its broadcast and DHCP context; physical link state is not enough. It can be healthy even while the current spanning-tree blocked forwarding problem remains.

A frame cannot traverse a trunk on which its tagged VLAN is not allowed; local endpoint configuration can be fully correct. The indicated result—the required VLAN is allowed end-to-end and representative frames cross the uplink without unexpected tagging—checks a different mechanism and would not confirm the required spanning-tree blocked forwarding outcome.

This would validate route missing in correct VRF, not spanning-tree blocked forwarding. Separate VRFs maintain distinct forwarding information bases; routes visible in one context do not automatically apply in another. It is therefore insufficient acceptance evidence for the reported condition.

This would validate WPA3 and legacy clients, not gateway role deployment. WLAN security changes can exclude devices with unsupported cipher, authentication or protected-management-frame capabilities. It is therefore insufficient acceptance evidence for the reported condition.

Radio operation is constrained by regional rules, and an incorrect country or channel plan can prevent valid operation or break client support. The indicated result—the AP radio state uses legally permitted channels and clients connect under the intended local regulatory settings—checks a different mechanism and would not confirm the required gateway role deployment outcome.

That result—The effective device configuration reflects documented scoped intent and any deliberate higher-priority exception—concerns new Central scoped inheritance. New Central includes global, collection, site and device scopes; more specific applicable configuration can override broader inherited values. It can be healthy even while the current gateway role deployment problem remains.

That result—The assigned device function matches the hardware's network role and applicable profiles show successful effective configuration—concerns new Central persona applicability. Configuration applies according to supported device function as well as scope, so a role mismatch can prevent intended policy from being deployed. It can be healthy even while the current central configuration audit problem remains.

Wireless association is only the first hop; downstream tunnel, VLAN and gateway mappings must agree for application access. The indicated result—a client on the SSID receives the expected address and the mapped traffic follows the intended path to permitted destinations—checks a different mechanism and would not confirm the required central configuration audit outcome.

This would validate template variable rendering, not central configuration audit. Shared templates are reusable only when site-specific identity, address and port data are correctly substituted for each target device. It is therefore insufficient acceptance evidence for the reported condition.

That action—Check the routing table and route installation in the source interface's VRF—is relevant to route missing in correct VRF. Separate VRFs maintain distinct forwarding information bases; routes visible in one context do not automatically apply in another. It does not correct the observed missing trunk VLAN condition.

The alternative targets spanning-tree blocked forwarding, where a correctly blocked path may be essential loop prevention; unblocking without analyzing topology can trigger broadcasts and MAC instability. It does not establish the intended missing trunk VLAN behavior described in the scenario.

Rapid MAC moves and broadcast amplification indicate switching topology instability, not a problem fixed by adding a default route. Investigate Layer 2 loops and unstable MAC learning before changing IP routing. would address MAC learning and unintended loops, but the reported facts instead point to missing trunk VLAN. That change would leave the actual requirement unresolved.

The alternative targets spanning-tree blocked forwarding, where a correctly blocked path may be essential loop prevention; unblocking without analyzing topology can trigger broadcasts and MAC instability. It does not establish the intended missing trunk VLAN behavior described in the scenario.

That action—Investigate Layer 2 loops and unstable MAC learning before changing IP routing—is relevant to MAC learning and unintended loops. Rapid MAC moves and broadcast amplification indicate switching topology instability, not a problem fixed by adding a default route. It does not correct the observed missing trunk VLAN condition.

Routing protocol control packets may be rejected when authentication differs, even if underlying Layer 3 ping succeeds. Match OSPF authentication method and key material on the intended neighbors. would address OSPF authentication mismatch, but the reported facts instead point to missing trunk VLAN. That change would leave the actual requirement unresolved.

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 VSF versus VSX platform planning. That change would leave the actual requirement unresolved.

That action—Map endpoint trust groups to intentional VLAN, subnet and policy boundaries—is relevant to VLAN and subnet segmentation. Separate segments help control broadcast reachability and policy scope; a VLAN label alone is not an authorization policy. It does not correct the observed VSF versus VSX platform planning condition.

The alternative targets uplink bandwidth capacity, where aggregate access capacity, application demand and supported congestion tolerance determine uplink sizing; port counts alone do not. It does not establish the intended VSF versus VSX platform planning behavior described in the scenario.

That result—The documented root and port state match the intended loop-free topology and active links forward without loops—concerns spanning-tree blocked forwarding. A correctly blocked path may be essential loop prevention; unblocking without analyzing topology can trigger broadcasts and MAC instability. It can be healthy even while the current duplex and speed negotiation problem remains.

This would validate LACP partner mismatch, not duplex and speed negotiation. LACP only selects compatible links for aggregation; forcing an incompatible member can create unexpected hashing or forwarding behavior. It is therefore insufficient acceptance evidence for the reported condition.

IPv4 ARP safeguards do not inspect ICMPv6 router announcements; RA protection constrains unauthorized router information on client segments. The indicated result—test rogue advertisements are blocked while approved router advertisements continue to reach clients—checks a different mechanism and would not confirm the required duplex and speed negotiation outcome.

This would validate port mirroring for packet capture, not NAE event rules on AOS-CX. A capture tool sees only frames delivered to it; a correctly scoped mirror copies relevant ingress or egress traffic without changing production forwarding. It is therefore insufficient acceptance evidence for the reported condition.

Counters are most useful when compared with known normal operating behavior and collection intervals rather than isolated snapshots. The indicated result—time-series telemetry shows documented normal ranges and highlights material changes from the baseline—checks a different mechanism and would not confirm the required NAE event rules on AOS-CX outcome.

That result—The approved compatibility matrix and staged test confirm dependent components function on the selected release set—concerns firmware compatibility dependency. Release-specific feature and compatibility constraints can break management or forwarding despite a successful image installation. It can be healthy even while the current NAE event rules on AOS-CX problem remains.

This would validate LAG capacity and hash distribution, not legacy low-rate airtime overhead. 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.

Wireless capacity depends on shared airtime and contention as well as signal quality; excessive power can enlarge overlap without adding usable spectrum. The indicated result—busy-period tests show lower radio contention and improved client throughput at the same representative load—checks a different mechanism and would not confirm the required legacy low-rate airtime overhead outcome.

That result—Spectrum observations isolate the interference source and the post-remediation error rate falls measurably—concerns interference spectrum diagnosis. Non-802.11 emitters can occupy channel energy without appearing as normal Wi-Fi neighbors; channel changes or source mitigation need measured evidence. It can be healthy even while the current legacy low-rate airtime overhead problem remains.

API access is a privileged operational interface; overbroad or leaked tokens can compromise configuration and monitoring data. The indicated result—a scoped automation token reads intended resources, fails prohibited write operations and is absent from code repositories—checks a different mechanism and would not confirm the required access-control change verification outcome.

This would validate change freeze and backout criteria, not access-control change verification. Recovery decisions based on elapsed time and service impact are more reliable than an operator's improvised judgment under incident pressure. It is therefore insufficient acceptance evidence for the reported condition.

That result—Certificate inventory and alerts show sufficient renewal lead time and successful test authentication after renewal—concerns certificate expiry monitoring. Healthy RF and RADIUS reachability cannot compensate for an expired or untrusted certificate that fails the authentication handshake. It can be healthy even while the current access-control change verification problem remains.