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Lab na-05 - Voice VLAN on Access Ports
An access port normally carries a single VLAN of untagged traffic. There is one important exception: a port connected to
4 min read
Labs
Hands-on Cisco IOS XE lab walkthroughs. Each lab ships with a real CML topology, configs you can paste, and verified show output. Articles tagged Labs cover the full CCNA 200-301 blueprint across Network Fundamentals, Network Access, IP Connectivity, IP Services, and Security Fundamentals.
76 posts
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Lab na-08 - Configure Rapid-PVST
Spanning-Tree Protocol prevents Layer 2 loops by detecting redundant paths and putting one in a blocking state. Rapid-PVST
5 min read
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Lab na-07 - PAgP vs LACP
EtherChannel can be negotiated by two different protocols: Cisco's proprietary PAgP (Port Aggregation Protocol) or the IEEE standard
3 min read
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Lab na-06 - LACP Active EtherChannel
EtherChannel takes multiple physical links between two switches and bundles them into a single logical link with the combined bandwidth.
5 min read
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Lab nf-12 - OSI vs TCP/IP in the Cisco IOS CLI
Every CCNA candidate memorizes the OSI seven-layer model and the four-layer TCP/IP model. The exam tests both.
6 min read
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Lab na-04 - DTP and Static Trunking
DTP - the Dynamic Trunking Protocol - is Cisco's way of having two switches automatically agree to form a trunk.
4 min read