Infrastructure Scenario Tests

A DRS-triggered vMotion fails mid-migration due to a vMotion network MTU mismatch. The VM enters a stuck state — partially migrated, with the source host holding the memory pages and the destination unable to complete the switchover.

A VMFS 6 datastore becomes inaccessible due to a storage path failure (all-paths-down APD condition). All 22 VMs on the datastore freeze with I/O errors. vSphere triggers APD timeout handling after 140 seconds.

The vCenter Server Appliance (VCSA) becomes unresponsive due to a database corruption in the embedded PostgreSQL. All management operations are impossible. VMs continue running but no changes, migrations, or monitoring can occur.

An ESXi 8.0 host experiences a Purple Screen of Death (PSOD) due to a faulty network driver. All 35 VMs on the host crash simultaneously. HA attempts to restart them on surviving hosts but resource contention causes slow recovery.

Meraki Enterprise licenses expire on a Saturday night. Dashboard access becomes read-only. Advanced features including Auto VPN, traffic shaping, and client analytics are disabled. APs continue broadcasting but without content filtering or group policies.

The Meraki VPN concentrator hub at the data center fails, breaking all Auto VPN tunnels in the mesh. 8 branch sites lose connectivity to central resources including file shares, ERP, and VoIP.

An upstream switch reboot causes 20 Meraki MR46 access points to lose their uplink simultaneously. APs lose Meraki Dashboard cloud connectivity and fall into local management mode. SSIDs remain broadcasting but no new clients can authenticate via RADIUS.

The primary Meraki MX450 appliance at a large campus fails due to a firmware crash. The warm spare MX450 assumes the primary role after a 45-second failover gap. All site-to-site VPN tunnels and client connections are disrupted during the transition.

A UniFi controller update introduces a bug that causes all APs to lose their management connection. APs continue serving clients with last-known config, but cannot be managed, updated, or monitored.

The MPLS PE-CE link at a remote branch office fails. The branch is completely isolated from the WAN. No backup link exists. 30 employees cannot access any corporate resources.

The primary MPLS circuit at a branch office goes down. SD-WAN fails over to the backup broadband link. Voice quality degrades due to higher jitter on the broadband path.

A Nutanix Controller VM (CVM) crashes on one node of a 4-node cluster. All VMs on that node lose local storage access. The cluster attempts to serve I/O from surviving CVMs but performance degrades significantly.

An attacker spoofs a MAC address to bypass network access control. Port security detects the violation and shuts down the port, but not before the attacker exfiltrates data for 30 seconds.

An OSPF adjacency between two core routers drops due to a unidirectional fiber failure. Routes are withdrawn, causing a major routing blackhole for half the campus network.

A FortiGuard web filter update incorrectly categorizes a critical SaaS application as malware. All employee access to the application is blocked by the UTM policy.

The primary FortiGate in an HA pair crashes due to a firmware bug, triggering failover to the secondary unit. All active VPN tunnels drop and need to re-establish.