The socket table — one address, four conversations, zero collisions
One laptop, one IP address, several conversations at once. Every one of them is pinned down by four numbers — source IP, source port, destination IP, destination port. Change any one of the four and it is a different conversation.
the operating system’s socket table
bitsarebits.com · CSE 316 — Data Communication & Networking · sockets, the 4-tuple and demultiplexing