AdvancedPublished 2026-10-23
CCNP Route Control: Summarize and Filter at the Area Border
Today's daily lab
Lab 9 of 9 in CCNP Route Control: Redistribution, Route Maps, PBR & IP SLA · ← Previous
The branch area floods the core with every subnet, its lab bench included. Summarize the branch at the area border and keep the bench inside.
Learning objectives
- Summarize an area's subnets at the area border router
- Filter an inter-area route with a prefix list
- Verify the core learns one summary and no bench route
Troubleshooting focus
- The core lost every branch route: a prefix list ends in an implicit deny
- The bench route still reaches the core: check the filter's direction
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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.
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