IntermediatePublished 2026-10-03
CCNA L3 Switching: A New VLAN, End to End
Today's daily lab
Lab 6 of 6 in CCNA Layer 3 Switching: Route on the Switch · ← Previous
A new building-systems VLAN has been provisioned. Carry it, route it and advertise it so its controllers reach the edge.
Learning objectives
- Extend a new VLAN from the distribution switch to the access layer
- Route the new VLAN on the distribution switch
- Advertise the new subnet without peering toward its hosts
Troubleshooting focus
- The new hosts can't reach their gateway: follow the VLAN from the switch to their port
- The edge can't reach the new subnet: check what the switch advertises
Topology
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How this lab is graded
- Build it your way. Where a lab lets you choose a value — a VLAN name, an interface description — grading checks that you configured it, not which name you picked. Names that another line has to reference, like an ACL applied with
access-class, are stated in the guide and do have to match. - Addresses, modes and protocol keywords are exact. An IP address, a subnet mask,
switchport mode trunk, an encapsulation — these carry the meaning of the lab, so they are graded as written in the guide. - Grading reads your saved configuration. Export the lab from CML after you have configured it, and make sure anything you set is in the
running-config— a change that only exists in a terminal session never reaches the grader. - You can submit as many times as you like. Your best score stands, and each attempt tells you which checks passed so you can work the gaps.
- Scored something you believe is correct? Use Report an issue on this page — that is exactly how the grading fixes in the changelog got found.
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