TAILIEUCHUNG - CNNA3-Chapter 6

What is Inter-VLAN RoutingWhat is Inter-VLAN Routing? Each VLAN is a unique broadcast domain. Computers on separate VLANs are, by default, not able to communicate. Each VLAN is a unique IP subnetwork. To allow VLANs to communicate, we need a router to communicate among separate broadcast domains and unique IP subnetworks. Inter-VLAN routing, then, is a process of forwarding traffic from one VLAN to another VLAN using a router. | Chapter 6 Inter-VLAN Routing Inter-VLAN Routing Introducing Inter-VLAN Routing What is Inter-VLAN Routing? Each VLAN is a unique broadcast domain. Computers on separate VLANs are, by default, not able to communicate. Each VLAN is a unique IP subnetwork. To allow VLANs to communicate, we need a router to communicate among separate broadcast domains and unique IP subnetworks. Inter-VLAN routing, then, is a process of forwarding traffic from one VLAN to another VLAN using a router. Introducing Inter-VLAN Routing Methods: Traditional Inter-VLAN Routing. Router-on-a-stick Inter-VLAN Routing. Switch Based Inter-VLAN Routing. Introducing Inter-VLAN Routing Traditional Inter-VLAN Routing: One router interface per VLAN. Introducing Inter-VLAN Routing VLAN Tagged Internally Routed to the proper subnet. Tag removed Router-on-a-stick Inter-VLAN Routing: One router interface for all VLANs. Introducing Inter-VLAN Routing VLAN Tagged Internally Routed to the proper subnet. Tag removed Layer 3 Switch

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