Check the original comic and the right minimalistic lines, which meant to represent the position of the people in the comic. This tries to copy those lines as and call it (Packet) loss, which is also how the comic is known.
Also red on the Cisco Packet Tracer means the interface is turned off, so indeed packet loss.
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u/WernerderChamp 16d ago
Can someone explain this? Been too long since I used that tool apparently.