CCNAintermediate45 minfree
Rapid PVST+, PortFast, and BPDU Guard
Protect a small switched topology from loops and user-edge mistakes while keeping convergence practical.
Lab challenge
Make redundancy safe without turning edge ports into a liability.
Progression
Observe STP role selection, tune root placement, apply edge protections, and verify the resulting state.
Catalog metadata
- Bundle
- CCNA 200-301 v1.1 Foundation Lab Catalog
- Blueprint domain
- Network Access
- Blueprint objective
- Configure STP features that protect the access layer
- Focus
- stp • rapid-pvst • portfast • bpduguard
- Platform
- Packet Tracer-friendly • CML-friendly • platform-neutral
- Device count
- 3
- Reference source
- Cisco CCNA 200-301 v1.1 blueprint → Configure STP features that protect the access layer
Prerequisites
- • basic trunking
- • understanding of switching loops
Skills practiced
- • set STP mode
- • tune root placement
- • enable PortFast
- • enable BPDU Guard
- • interpret blocked ports
Validation checklist
- • expected root switch wins
- • edge ports use PortFast
- • BPDU Guard err-disables an edge port during the test scenario or is shown configured correctly
Task sequence
- 1Set the intended spanning-tree mode.
- 2Adjust bridge priority so the correct switch becomes root.
- 3Enable PortFast on user-facing interfaces.
- 4Enable BPDU Guard on those edge ports.
- 5Verify roles, states, and protections with show commands.
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