+\subsection pf_switch I want to describe a switch but there is no switch tag!
+
+Actually we did not include switch tag. But when you're trying to
+simulate a switch, assuming
+fluid bandwidth models are used (which SimGrid uses by default unless
+ns-3 or constant network models are activated), the limiting factor is
+switch backplane bandwidth. So, essentially, at least from
+the simulation perspective, a switch is similar to a
+link: some device that is traversed by flows and with some latency and
+so,e maximum bandwidth. Thus, you can simply simulate a switch as a
+link. Many links
+can be connected to this "switch", which is then included in routes just
+as a normal link.