AdvancedPublished 2026-07-03
VRRP Load-Sharing with Two Groups
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Lab 11 of 13 in First-Hop Redundancy (HSRP & VRRP) · ← Previous · Next →
CCNA exam domain: IP Connectivity
Advanced VRRP on a single VLAN: configure two VRRP groups on R1/R2 so each router is Master for one group and Backup for the other, distributing host egress while preserving gateway redundancy.
Learning objectives
- Design two VRRP groups on one LAN to achieve active/active gateway load sharing.
- Apply deterministic VRRP election using group priorities and preemption.
- Validate VRRP state with show vrrp brief and host-side gateway reachability.
- Explain how clients split across multiple virtual gateways achieve both load distribution and failover.
Troubleshooting focus
- VRRP group number or virtual IP mismatch between routers prevents a common virtual router from forming.
- Missing or reversed priorities lead to the wrong device as Master.
- PC default gateway points at a real IP instead of the correct virtual IP.
- VRRP preemption omitted causes roles to stay stuck after a reload.
- Access ports not placed in the correct VLAN block host-to-gateway reachability.
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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