Lab 1.2: Network Architectures
Compare two-tier, three-tier, spine-leaf, WAN, SOHO, and cloud designs through packet paths.
Packet Tracer build
Create two access switches connected to a distribution device and attach endpoint groups to each access layer.
Add redundant uplinks, observe STP, and identify the forwarding versus blocked path.
Architecture comparison
DesignBest fitTwo-tierSmall or medium campus with collapsed coreThree-tierLarge campus requiring distinct distribution and coreSpine-leafData center with predictable east-west pathsWANConnecting sites that aren't physically close, riding a provider's or the internet's infrastructure instead of your own cablingSOHOSmall site with integrated edge servicesCloudApplications and infrastructure hosted off-premises — networking fundamentals still apply, only ownership and location change
Break and explain
Disconnect one uplink and measure how the path changes.
Explain which design layer contains the failure and which redundancy mechanism restores service.
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