Networking assignments are brutal because they are binary. Unlike code that might run with warnings, a network either pings or it doesn't.
The challenge usually isn't the CLI commands; it's the logic. You might have configured the IP addresses correctly, but missed a `no shut` command on an interface, or used the wrong Wildcard Mask in OSPF. One tiny error in the Subnet Mask breaks the entire network.
Why Your Topology Won't Communicate
Common Errors We Debug:
- Destination Host Unreachable / Request Timed Out
- DHCP DORA process failing (APIPA addresses)
- VLAN Mismatches (Native VLAN errors)
- Spanning Tree Protocol (STP) blocking ports incorrectly
- Activity Wizard stuck at 90% completion
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