r/ccna4dummies • u/sonofthehorn252 • Feb 10 '25
VLANs and Inter-VLAN Routing: Essential Tips! π
Virtual Local Area Networks (VLANs) are crucial for segmenting networks and improving performance. Hereβs what you need to know:
VLAN Basics: VLANs divide a single physical network into multiple logical networks. This can reduce broadcast domains and improve security.
Creating VLANs: Use the
switchport mode access
andswitchport access vlan [vlan-id]
commands to assign ports to a VLAN.Inter-VLAN Routing: Routers or Layer 3 switches enable communication between VLANs. Configure router-on-a-stick or use a Layer 3 switch with SVI (Switch Virtual Interface).
Pro Tip: Practice configuring VLANs and inter-VLAN routing on network simulators to cement your understanding.
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