Patent ID: 11968176
Assignee: nan
Field: Digital communication (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 19:
20. The network switching device of claim 18, wherein the instructions cause the one or more processors to:
execute a hypervisor to control access to hardware on the network switching device;
execute a first forwarding rule custodian for a first VLAN, the first forwarding rule custodian executing in a first virtual machine implemented by the hypervisor, the first forwarding rule custodian maintaining first forwarding rules for the first VLAN; and
execute a second forwarding rule custodian for a second VLAN, the second forwarding rule custodian executing in a second virtual machine implemented by the hypervisor, the second forwarding rule custodian maintaining second forwarding rules for the second VLAN,
execute a port assignment manager in a third virtual machine implemented by the hypervisor,
wherein assuring that a packet received at a hardware port assigned to the first VLAN is not sent in a legible form from any hardware port assigned to the second VLAN includes the port assignment manager cooperating with the hypervisor to restrict access for the first forwarding rule custodian from hardware ports assigned to a VLAN other than the first VLAN, and to restrict access for the second forwarding rule custodian from hardware ports assigned to a VLAN other than the second VLAN.