What options are best suited to find out what traffic between nodes is clogged with?

Question

css

For example, the channel was crammed with 10 Mbps, and suddenly it began to drive 60.

Answer 1

4) the third picture of
course.
The first two options are options for a smoker in general, they would not even appear in a healthy person's head.

Answer 2

It would be correct to ask like this (code below), because you will have more opportunities for further support. When changing the menu, in any case, its html is generated, which means the number of tags does not matter. The separator can be changed, added, removed, without the need to edit styles and assemble everything again, everything is done on the back side. By asking through pseudo-elements, you will doom yourself to put up with their shortcomings and lose the ability to quickly change something.

<div>
   <span>сон</span>
   <span class="separator-slash">/</span>
   <span>ужин</span>
   <span class="separator-dot">.</span>
   <span>завтрак</span>
</div>

Answer 3

tcpdump, wireshark

Answer 4

See what processes are running on the nodes and which of them generates traffic: top