01 // LAB
VLAN campus
Create two VLANs across two switches, trunk them, add router-on-a-stick and prove inter-VLAN reachability.
Switching
02 // LAB
Resilient Layer 2
Bundle two links with LACP, choose the STP root and test how the topology reacts to one failed member.
EtherChannel + STP
03 // LAB
Static routing
Build IPv4 and IPv6 routes, add a floating backup and predict the selected path before checking the table.
Routing
04 // LAB
Single-area OSPF
Form neighbours, change a link to point-to-point, make an interface passive and verify learned routes.
OSPFv2
05 // LAB
Services edge
Combine DHCP relay, NAT, NTP and SSH, then troubleshoot each dependency from client to server.
IP services
06 // LAB
Secure access switch
Create the DHCP snooping trust boundary, enable DAI and add sticky port security to a client port.
Security