The most important elements are the basic ones: :ref:`pf_tag_host`,
:ref:`pf_tag_link`, and similar. Then come the routes between any pair
-of hosts, that are given explicitely with :ref:`pf_tag_route` (routes
+of hosts, that are given explicitly with :ref:`pf_tag_route` (routes
are symmetrical by default). Any host must be given a computational
speed (in flops) while links must be given a latency (in seconds) and
a bandwidth (in bytes per second). Note that you can write 1Gflops
to reduce the size of your platform on disk and in memory. Then, when
a host wants to communicate with another host belonging to the same
zone, it is the zone's duty to find the list of links that are
-involved in the communication. In the above example, since we use
+involved in the communication. In the above examples, since we use
``routing="Full"``, all routes must be explicitly given using the
:ref:`pf_tag_route` and :ref:`pf_tag_link_ctn` tags (this :ref:`routing
model <pf_rm>` is both simple and inefficient :) It is OK to not
