-| | ... | [Ver] Make TG send ICMPv4 Echo Reqs in both directions between two\
-| | ... | of its interfaces to be switched by DUT to and from docker; verify\
-| | ... | all packets are received.
+| | ... | [Ver] Make TG send IPv4 packet in one direction between two\
+| | ... | of its interfaces to be switched by DUT to and from docker.\
+| | ... | Make TG verify IPv4 packet is correct.