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Assessment Title
Rule Text
For the ESXi host, all port groups must not be configured to VLAN values reserved by upstream physical switches.
Description
Discussion Text
Certain physical switches reserve certain VLAN IDs for internal purposes and often disallow traffic configured to these values. For example, Cisco Catalyst switches typically reserve VLANs 1001-1024 and 4094, while Nexus switches typically reserve 3968-4047 and 4094. Check the documentation for the specific switch. Using a reserved VLAN might result in a denial of service on the network.
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