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Verify bundled-member state and traffic redistribution on link failure. Verification of this result involves time port forwarding and DHCP lease after reboot.

Stable topology and counters demonstrate loop suppression. Verification of this result involves time port forwarding and DHCP lease after reboot.

Expected root election validates the priority plan. That check cannot demonstrate successful client IP addressing from the correct scope.

LACP forms a logical link only when partner identities and member parameters agree. The missing change involves the edge access port is waiting for standard STP convergence.

A Layer 2 loop exists without effective STP control. That does not establish the edge access port is waiting for standard STP convergence.

Bridge priorities do not designate the intended root. That does not establish the edge access port is waiting for standard STP convergence.

Permitting VLAN 40 on the correct 802.1Q trunk endpoints would not enforce scoped routed ACLs blocking guest-to-payroll flows while permitting approved staff.

Setting compatible trunk modes and explicit allowed VLANs on both link ends would not enforce scoped routed ACLs blocking guest-to-payroll flows while permitting approved staff.

Assigning the port to the approved data VLAN and retaining separate voice configuration would not enforce scoped routed ACLs blocking guest-to-payroll flows while permitting approved staff.

That test concerns 802.1q tagged trunk rather than the specific reported condition. Positive and negative paths confirm routed ACL effect.

Traffic quality during contention validates voice policy. It does not test denied guest connection and allowed finance session.

Stable topology and counters demonstrate loop suppression. It does not test denied guest connection and allowed finance session.

This describes the 802.1q tagged trunk mechanism, not the failure in this case. VLAN separation does not automatically restrict routed communication.

Port-mode mismatch drops or misclassifies tagged traffic. That does not establish correct switch VLAN and trunk classification.

LACP forms a logical link only when partner identities and member parameters agree. The missing change involves inter-VLAN routing lacks least-privilege filtering.

Removing the unauthorized bridge, confirm edge role, and follow controlled reenable procedure would not address the need for disable unused access ports and configure supported port security for required active jacks.

Creating and enabling an SVI for VLAN 55 with gateway IP and routing enabled would not address the need for disable unused access ports and configure supported port security for required active jacks.

Permitting VLAN 40 on the correct 802.1Q trunk endpoints would not address the need for disable unused access ports and configure supported port security for required active jacks.

Guard state and successful compliant endpoint confirm intended behavior. That check cannot demonstrate connect a test unauthorized MAC and observe the configured violation response.

Verify bundled-member state and traffic redistribution on link failure. That check cannot demonstrate connect a test unauthorized MAC and observe the configured violation response.

Expected root election validates the priority plan. That check cannot demonstrate connect a test unauthorized MAC and observe the configured violation response.

Restoring spanning-tree protection and removing the accidental redundant loop would not set compatible trunk modes and explicit allowed VLANs on both link ends.

Configuring the supported voice VLAN and QoS marking/trust boundaries would not set compatible trunk modes and explicit allowed VLANs on both link ends.

Assigning the port to the approved data VLAN and retaining separate voice configuration would not set compatible trunk modes and explicit allowed VLANs on both link ends.

Traffic quality during contention validates voice policy. That check cannot demonstrate correct switch VLAN and trunk classification.

Stable topology and counters demonstrate loop suppression. Verification of this result involves inspecting operational trunk state and validate tagged VLAN traffic.

Correct VLAN and subnet address confirm access membership. Verification of this result involves inspecting operational trunk state and validate tagged VLAN traffic.

Voice traffic is not separated and prioritized on the access path. The missing change involves port-mode mismatch drops or misclassifies tagged traffic.

A Layer 2 loop exists without effective STP control. That does not establish port-mode mismatch drops or misclassifies tagged traffic.

An untagged host inherits its access-port VLAN. That does not establish port-mode mismatch drops or misclassifies tagged traffic.

Using DFS-compliant operation or plan a suitable non-DFS channel if needed would not plan nonoverlapping 20MHz channels such as 1, 6, 11 in the permitted regulatory domain.

Reduce channel width where dense deployments need more independent channels would not plan nonoverlapping 20MHz channels such as 1, 6, 11 in the permitted regulatory domain.

Keeping a common enterprise SSID while allowing each radio its distinct BSSID would not plan nonoverlapping 20MHz channels such as 1, 6, 11 in the permitted regulatory domain.