The Router That Ignored the Shorter-Looking Route
A router can match more than one route. The winner is the most specific matching prefix, not simply the first or broadest entry.
Topic: Computer Networks
The 1500-Byte Packet That Did Not Arrive in 12 Microseconds
A fast bit rate reduces serialization time, but it does not remove the physical travel time across the link.
The /27 Network That Could Not Fit 40 Devices
A /27 contains 32 addresses, but not all 32 can be assigned to ordinary hosts in a conventional IPv4 subnet.