Networking: Consolidate waits/delays.

[adam-3bian]

When developing, understanding delays is helpful. The document references various delays and waits, but consolidating them into a single section could make it clearer. A dedicated section on expected reconnection times would also be useful from a developer’s perspective, perhaps even with a flowchart to illustrate the process.

• book/text/networking.tex

  Line 597 in 0394c53

  MQTT example: Now fetching the PUBACK and waiting for the publish notification.

• book/text/networking.tex

  Line 925 in 0394c53

  Most of the time is spent waiting for a DHCP lease, the reset happens very quickly.

For outbound connections, it might also be worth covering a simple reconnection strategy, like exponential back-off, to improve robustness, especially while the stack is still evolving.

[davidchisnall]

I don't think these line numbers go where you think they do: they don't seem to line up with the comments. Can you use the permalink button so that they're linked to a specific git version (and I can then figure out where the text ended up)?

[adam-3bian]

Oops! Sorry! I'll update the other issues too.