c7f6ce74d3a5cf2a0c5bac20eab1efd997175a72 docs: Improve netbase comments (Carl Dong)
Pull request description:
Second in a series of PRs documenting the net stack. Contributed with sincere thanks to sipa, laanwj, and gmaxwell for providing much of the history, context, and rationale.
ACKs for top commit:
laanwj:
ACK c7f6ce74d3a5cf2a0c5bac20eab1efd997175a72
Tree-SHA512: ad83054d3b8d0c8c3fb55be011bcf294176e7509513bf61326866afd53e8159644e0d59bb3a2f404717f525cbf736096d4c1990e61cfd89845d51fa6b5394b7c
Backport of Core PR15824