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VLANs on one switch
Local networks · free online experiment, runs in your browser with no install or sign-up.
Open this experiment in the network simulator
Objective
Ports 1–2 are VLAN 10, port 3 is VLAN 20: A reaches B but not C although all three share a subnet.
Procedure
- Run: ping to B succeeds, ping to C fails (100 % loss).
- Select the switch and change its VLANs to p1=10 p2=10 p3=10: both pings work.
Theory
A VLAN is a separate broadcast domain. Even ARP broadcasts do not cross VLANs, so A cannot resolve C's address.
Network blocks used
3 × Host / PC, Switch
Open this experiment in the network simulator