def test_reset_port_invalid_interface_fails(self, t):
        enable(t)

        configuring_interface(t, "FastEthernet0/3", do="description shizzle the whizzle and drizzle with lizzle")

        t.write("conf t")
        t.readln("Enter configuration commands, one per line.  End with CNTL/Z.")
        t.read("my_switch(config)#")

        t.write("default interface WrongInterfaceName0/3")

        t.readln("\s*\^", regex=True)
        t.readln("% Invalid input detected at '^' marker (not such interface)")
        t.readln("")
        t.read("my_switch(config)#")

        configuring(t, "default interface FastEthernet0/3")