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I
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8
8
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I
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Vo
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8
,
No
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1
,
Feb
r
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ar
y
2
0
1
8
:
1
1
3
–
1
2
3
114
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[
9
]
.
I
n
th
i
s
s
t
u
d
y
f
o
c
u
s
ed
o
n
l
y
o
n
t
h
e
m
o
d
el
o
f
d
ev
i
ce
co
n
n
ec
ti
v
it
y
to
t
h
e
g
ate
w
a
y
o
n
l
y
,
s
o
th
is
s
tu
d
y
w
il
l s
h
o
w
t
h
e
r
elatio
n
s
h
ip
b
etw
ee
n
th
e
Ho
s
t /
Gate
w
a
y
w
it
h
Dev
ice
/ Cl
ien
t o
w
n
ed
b
y
s
m
ar
t h
o
m
e
d
ev
ice
s
.
On
co
n
n
ec
t
iv
i
t
y
to
t
h
e
g
ate
w
a
y
d
e
v
ice
r
eq
u
ir
ed
a
co
m
m
u
n
icat
io
n
p
r
o
to
co
l,
a
co
m
m
u
n
icat
io
n
p
r
o
to
co
l
in
th
e
A
p
p
licatio
n
L
a
y
er
ar
e
T
C
P
(
T
r
an
s
m
i
s
s
io
n
C
o
n
tr
o
l
P
r
o
to
co
l
)
an
d
UDP
(
User
Data
g
r
a
m
P
r
o
to
c
o
l)
.
T
h
e
u
s
e
o
f
T
C
P
is
t
h
e
C
lie
n
t
w
i
ll
p
er
f
o
r
m
d
ata
tr
an
s
m
i
s
s
io
n
to
t
h
e
h
o
s
t,
th
e
n
th
e
clien
t
w
il
l
e
n
s
u
r
e
f
u
ll
d
ata
o
n
th
e
Ho
s
t
o
f
th
e
d
a
ta
s
en
t
o
r
n
o
t
[
1
0
]
.
On
UDP
,
t
h
e
clien
t
s
en
d
s
t
h
e
d
ata
to
th
e
h
o
s
t,
b
u
t
th
e
C
lie
n
t
an
d
Ho
s
t
w
i
ll
n
e
g
o
tiate
w
h
e
n
b
ef
o
r
e
p
er
f
o
r
m
i
n
g
co
m
m
u
n
ic
atio
n
.
T
C
P
w
ill
b
e
v
er
y
e
f
f
ic
i
en
t
w
h
e
n
th
e
d
ata
is
s
en
t
i
n
lar
g
e
a
m
o
u
n
ts
,
b
u
t
in
s
m
ar
t
h
o
m
e
en
v
ir
o
n
m
e
n
t
is
n
o
t
r
eq
u
ir
ed
lar
g
e
a
m
o
u
n
ts
o
f
d
at
a
[
1
1
]
.
W
ith
UDP
b
eh
av
io
r
th
at
d
id
n
o
t
v
al
id
ate
w
h
et
h
er
th
e
d
ata
s
en
t
b
y
t
h
e
c
lien
t
h
as
co
m
e
to
h
o
s
t
a
n
d
v
ic
e
v
er
s
a
w
ill
m
a
k
e
th
e
p
r
o
ce
s
s
f
aster
d
ata
tr
a
n
s
f
e
r
s
.
UDP
p
r
o
v
id
es
a
f
ea
t
u
r
e
b
r
o
ad
ca
s
t
p
ac
k
ets
to
a
lo
ca
l
n
et
w
o
r
k
o
r
m
u
lticas
t
to
all
s
u
b
s
cr
ib
er
s
[
1
2
]
.
L
ab
VI
E
W
is
a
g
r
ap
h
ical
p
r
o
g
r
a
m
m
in
g
la
n
g
u
a
g
e
th
at
u
s
e
s
ico
n
s
i
n
s
tead
o
f
te
x
t
to
cr
ea
te
ap
p
licatio
n
s
[
1
3
]
.
I
n
co
n
tr
ast
to
tex
t
-
b
ased
p
r
o
g
r
a
m
m
i
n
g
la
n
g
u
a
g
es,
w
h
er
e
i
n
s
tr
u
ctio
n
s
d
eter
m
i
n
e
p
r
o
g
r
a
m
ex
ec
u
t
io
n
,
L
ab
v
ie
w
u
s
e
s
d
ataf
lo
w
p
r
o
g
r
a
m
m
i
n
g
,
w
h
er
e
t
h
e
f
lo
w
o
f
d
ata
d
eter
m
in
e
s
e
x
ec
u
t
io
n
[
1
4
]
.
L
ab
Vie
w
ca
n
ea
s
il
y
co
n
n
ec
t
o
th
er
d
ev
i
ce
s
s
u
c
h
as
m
icr
o
co
n
tr
o
ller
,
A
r
d
u
i
n
o
,
I
P
ca
m
er
a
an
d
ev
en
co
m
p
u
ter
n
e
t
w
o
r
k
s
[
1
5
]
.
A
d
d
itio
n
all
y
,
Nat
io
n
al
I
n
s
tr
u
m
e
n
t
s
h
as
al
s
o
d
ev
elo
p
ed
h
ig
h
l
y
co
m
p
atib
le
w
it
h
t
h
e
h
ar
d
w
ar
e
s
u
c
h
a
s
NI
L
ab
VI
E
W
M
y
R
I
O,
NI
C
o
m
p
ac
tR
I
O
an
d
NI
E
L
VI
S
i
s
ea
s
ier
to
d
ev
elo
p
a
s
y
s
te
m
[
1
6
]
.
NI
m
y
R
I
O
i
s
a
n
e
m
b
ed
d
ed
h
ar
d
w
ar
e
th
at
ca
n
b
e
u
s
ed
f
o
r
tech
n
o
lo
g
y
p
r
o
v
en
in
d
u
s
tr
y
r
esear
ch
er
s
a
n
d
en
ab
le
th
e
m
to
d
esi
g
n
s
y
s
te
m
s
w
it
h
r
ea
l,
co
m
p
lex
e
n
g
i
n
ee
r
i
n
g
s
y
s
te
m
s
f
a
s
ter
an
d
m
o
r
e
af
f
o
r
d
ab
le
th
an
ev
er
b
ef
o
r
e
[
1
8
]
.
So
in
th
is
r
esear
ch
th
e
i
m
p
le
m
en
tatio
n
o
f
P
er
v
asi
v
e
P
r
o
to
co
l
UD
P
w
il
l
b
e
u
s
ed
L
ab
VI
E
W
as
a
p
r
o
g
r
a
m
m
in
g
la
n
g
u
a
g
e
b
y
u
tili
z
in
g
M
y
R
I
O
as c
lie
n
t d
ev
ices
w
i
th
t
h
e
P
C
as a
Gate
wa
y
.
An
o
th
er
s
t
u
d
y
co
n
d
u
c
ted
u
s
i
n
g
Salu
tatio
n
Dis
co
v
er
y
P
r
o
to
co
l
an
d
Ser
v
ice
L
o
ca
tio
n
P
r
o
t
o
co
l
[
1
8
]
,
an
d
i
m
p
le
m
e
n
ti
n
g
HT
T
P
-
C
o
A
P
at
L
ab
VI
E
W
[
1
9
]
.
At
o
u
r
p
r
ev
io
u
s
r
e
s
ea
r
ch
,
it
is
i
n
tr
o
d
u
ce
d
h
o
w
U
DP
w
o
r
k
in
t
w
o
PC
,
o
n
e
as
C
lie
n
t
a
n
d
o
n
e
else
as
Gate
w
a
y
[
2
0
]
.
U
DP
an
d
P
er
v
asiv
e
p
r
o
to
co
l
w
er
e
d
esig
n
ed
b
y
t
h
e
s
tate
m
ac
h
i
n
e
a
n
d
w
o
r
k
w
el
l
i
m
p
le
m
en
ted
w
i
th
L
ab
VI
E
W
.
I
n
t
h
is
r
esear
c
h
w
e
w
i
ll
i
m
p
l
e
m
en
t
t
h
e
Gate
w
a
y
in
a
P
C
a
n
d
C
lien
t
m
o
d
eli
n
g
w
it
h
M
y
R
I
O.
So
t
h
e
d
esi
g
n
o
f
t
h
e
s
y
s
te
m
ca
n
b
e
te
s
ted
f
u
n
ctio
n
al
l
y
to
o
b
tain
co
r
r
esp
o
n
d
en
ce
b
et
w
ee
n
t
h
e
d
esig
n
s
o
f
a
s
y
s
te
m
th
a
t
w
as
d
e
v
elo
p
ed
w
it
h
th
e
r
es
u
lt
s
o
b
tain
ed
.
2.
RE
S
E
ARCH
M
E
T
H
O
D
I
n
th
is
s
ec
t
io
n
ex
p
lai
n
ed
d
esig
n
o
f
h
o
s
t
an
d
s
er
v
er
n
et
w
o
r
k
,
Gate
w
a
y
–
C
lien
t
Desi
g
n
an
d
T
est
d
esig
n
.
T
h
e
d
o
m
ai
n
in
t
h
is
r
esear
ch
is
h
o
w
Gate
w
a
y
/
H
o
s
t
ca
n
co
m
m
u
n
icate
w
it
h
C
l
ien
t
at
L
o
ca
l
A
r
ea
Net
w
o
r
k
.
So
th
at
it
ca
n
b
e
m
a
d
e
th
e
d
es
ig
n
f
o
r
s
y
s
te
m
te
s
ti
n
g
an
d
th
e
r
es
u
lts
o
b
tain
ed
o
n
th
e
av
a
ilab
ilit
y
o
f
th
e
s
y
s
te
m
b
et
w
ee
n
a
Ho
s
t
an
d
C
lie
n
t.
T
ests
w
i
ll
b
e
p
er
f
o
r
m
ed
to
test
th
e
f
u
n
ctio
n
a
lit
y
o
f
th
e
s
y
s
te
m
,
n
o
t
o
n
l
y
to
d
o
w
it
h
t
h
e
f
r
u
it C
lien
t
b
u
t th
e
tes
t
w
ill b
e
p
er
f
o
r
m
ed
u
p
to
th
r
ee
clien
t
s
.
2
.
1
.
H
o
s
t
a
nd
Serv
er
Net
wo
rk
T
h
is
r
esear
ch
d
esig
n
co
n
d
u
ct
ed
b
y
E
T
SI
s
tan
d
ar
d
[
2
1
]
w
h
ich
s
y
s
te
m
s
h
a
v
e
Ma
ch
i
n
e
t
o
Ma
ch
in
e
(
M2
M)
ar
ea
n
et
w
o
r
k
d
o
m
ai
n
an
d
i
m
p
le
m
e
n
ted
i
n
L
o
ca
l
Ar
ea
Net
w
o
r
k
.
So
d
esi
g
n
at
p
e
r
v
asi
v
e
u
s
i
n
g
UDP
s
h
o
w
n
i
n
Fi
g
u
r
e
1
w
h
ich
h
as
a
Ho
s
t
a
n
d
C
lie
n
t.
Ho
s
t
/
Gat
e
w
a
y
w
ill
b
e
i
m
p
le
m
e
n
ted
o
n
P
C
w
it
h
L
ab
VI
E
W
in
ter
f
ac
e
s
,
an
d
C
lien
t
w
ill b
e
i
m
p
le
m
e
n
ted
o
n
M
y
R
I
O
w
h
ic
h
h
as
m
an
y
f
ea
tu
r
e
s
lik
e
a
n
alo
g
in
p
u
t/o
u
tp
u
t,
w
i
f
i,
led
,
p
u
s
h
b
u
tto
n
,
ac
ce
ler
o
m
ete
r
etc.
W
h
er
e
th
e
i
n
itial
co
n
d
itio
n
s
,
Ho
s
t
ar
e
i
n
co
n
d
itio
n
to
w
ait
C
lie
n
t
li
s
te
n
to
b
r
o
ad
ca
s
t
.
Ne
x
t
a
f
ter
t
h
e
C
lie
n
t
to
b
r
o
ad
ca
s
t
an
d
b
r
o
a
d
ca
s
t
p
ac
k
ets
ar
e
r
ec
eiv
ed
b
y
Ho
s
t
C
lien
t
to
in
tr
o
d
u
ce
h
i
m
s
el
f
to
th
e
h
o
s
t
to
p
r
o
v
id
e
s
u
c
h
r
ev
ie
w
clie
n
t
n
a
m
e
r
ec
o
g
n
itio
n
,
IP
an
d
s
er
v
ice
s
o
n
t
h
e
h
o
s
t.
I
n
C
h
ec
k
D
u
p
lic
atio
n
Ho
s
t
C
l
ien
t
is
n
o
t
d
ir
ec
tl
y
ac
ce
p
t
th
e
clien
t,
b
u
t
to
r
ev
ie
w
th
e
d
u
p
licat
io
n
ch
ec
k
,
w
h
et
h
er
th
e
clie
n
t
alr
ea
d
y
e
x
is
t
s
o
r
n
o
t,
ev
en
i
f
th
e
clie
n
t
alr
ea
d
y
o
n
o
th
er
h
o
s
t
s
.
W
h
en
t
h
er
e
i
s
n
o
d
u
p
licatio
n
C
lie
n
t,
Ho
s
t
th
e
n
s
e
n
d
s
ac
k
,
h
o
s
tn
a
m
e
,
IP
an
d
h
o
s
t h
ea
d
er
w
ill b
e
s
to
r
ed
b
y
th
e
C
lie
n
t.
On
ce
th
e
C
lien
t
r
ec
o
g
n
izes
t
h
e
h
o
s
t
an
d
t
h
e
p
r
o
ce
s
s
ar
e
co
m
p
leted
,
Ho
s
t
w
ill
b
e
b
a
ck
o
n
th
e
b
r
o
ad
ca
s
t
C
lien
t
L
is
ten
to
w
a
it
f
o
r
an
o
t
h
er
,
b
u
t
f
o
r
th
e
C
l
i
en
t
t
h
at
h
a
v
e
b
ee
n
id
e
n
ti
f
ied
p
r
ev
io
u
s
l
y
w
ill
b
e
d
o
n
e
th
e
n
e
x
t
p
r
o
ce
s
s
i
s
to
co
m
m
u
n
icate
.
As
f
o
r
t
h
e
s
er
v
ice
th
at
ca
n
b
e
p
r
o
v
id
ed
is
a
C
lie
n
t
Ser
v
ices
(
Se
n
s
o
r
,
I
n
p
u
t
/
Ou
tp
u
t
etc)
o
r
th
e
h
o
s
t
ca
n
tak
e
co
n
tr
o
l
o
f
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I
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N
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I
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1
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116
T
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as
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Ho
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m
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te
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en
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n
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R
eq
State.
c.
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h
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k
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:
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k
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v
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p
licatio
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ized
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k
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ata
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u
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h
as
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n
d
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m
b
er
.
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f
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licatio
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ld
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th
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ata
in
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ted
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to
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w
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t I
D.
d.
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d
A
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f
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n
t
an
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C
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k
A
p
p
lian
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Da
ta
Statu
s
.
T
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t
w
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ld
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en
d
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K
to
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t
h
at
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k
.
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n
d
th
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DP
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s
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D
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a
s
id
en
tit
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Na
m
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P
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s
t.
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ter
t
h
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s
s
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m
o
v
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to
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te
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State
o
th
er
w
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s
e
Ho
s
t
m
o
v
e
to
Sen
d
R
eq
State
to
d
o
C
o
n
tr
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llin
g
d
ev
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to
C
lie
n
t.
e.
Sen
d
R
eq
:
in
th
i
s
s
tate
r
ep
r
esen
t b
y
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o
n
tr
o
l P
r
o
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s
s
at
s
tate
d
iag
r
a
m
.
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h
e
h
o
s
t
ca
n
r
ec
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e
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d
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e
n
d
d
ata
to
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lien
t.
T
h
e
h
o
s
t
ca
n
C
o
n
tr
o
llin
g
C
lie
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t
b
y
c
h
o
o
s
in
g
w
h
ic
h
clien
t
w
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ll
b
e
co
n
tr
o
lled
in
an
ar
r
ay
w
h
ic
h
d
escr
ib
ed
at
C
h
ec
k
HW
s
tate.
T
h
e
h
o
s
t
ca
n
co
n
tr
o
l
u
s
in
g
o
p
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UDP
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t,
6
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0
0
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6
6
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6
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0
0
f
o
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ce
ler
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m
eter
x
,
y
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z
a
n
d
o
t
h
er
.
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t
t
h
is
s
tate,
Ho
s
t
h
as
p
er
f
o
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m
ed
c
h
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k
in
g
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lie
n
t
c
o
n
n
ec
tio
n
.
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f
co
n
n
ec
tio
n
lo
s
t
t
h
en
Ho
s
t
m
o
v
e
to
L
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s
te
n
State
a
n
d
s
h
o
w
a
m
es
s
ag
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t
h
at
C
lie
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t
is
lo
s
t.
I
f
C
lie
n
t
s
ti
ll
h
a
s
a
co
n
n
ec
tio
n
,
co
m
m
u
n
icatio
n
s
till
co
n
t
in
u
e.
f.
Sto
p
State:
T
h
is
s
tate
w
as
n
o
t
d
esig
n
ed
in
t
h
e
s
tate
m
ac
h
i
n
e,
b
ec
au
s
e
a
n
ass
u
m
p
tio
n
Ho
s
t
n
ev
er
s
h
u
tti
n
g
d
o
w
n
.
B
u
t
it
s
u
s
e
s
to
p
er
f
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m
c
lo
s
i
n
g
p
o
r
t
w
h
ich
o
p
en
s
at
I
n
itialize
State
a
n
d
clea
r
a
r
r
ay
w
h
ic
h
h
a
s
C
lie
n
t I
D,
b
ec
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s
e
C
l
ien
t
co
m
m
u
n
icate
s
w
it
h
I
P
ad
d
r
ess
af
ter
r
ec
eiv
in
g
A
C
K.
Fig
u
r
e
3
.
C
lien
t
State
Ma
c
h
in
e
Diag
r
a
m
[
2
0
]
E
ac
h
co
n
d
itio
n
t
h
at
d
esi
g
n
ed
o
n
s
tate
m
ac
h
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n
e
d
iag
r
a
m
i
n
F
ig
u
r
e
3
f
o
r
Ho
s
t
w
i
ll
ex
p
lai
n
as
f
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llo
w
s
:
a.
I
n
itialize:
r
ep
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ese
n
t
t
h
e
I
d
le
s
t
ate,
th
is
s
tate
o
p
en
f
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u
r
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n
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d
UDP
p
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as
a
B
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ca
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D.
B
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u
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to
co
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m
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b
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t
an
d
ch
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k
d
id
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co
m
m
u
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n
w
it
h
Ho
s
t
s
till
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x
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t
o
r
n
o
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I
t
h
as
th
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Ser
v
ice
I
D
at
B
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o
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t
I
D,
1
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v
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D
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s
ed
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s
en
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id
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n
tit
y
C
lie
n
t
Ser
v
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an
d
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ec
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r
eq
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est
f
r
o
m
Ho
s
t.
2
nd
Ser
v
ic
e
I
D
u
s
ed
to
s
e
n
d
B
o
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lean
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r
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t
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er
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ata,
an
d
3
rd
Ser
v
i
ce
I
D
u
s
ed
to
s
en
d
s
e
n
s
o
r
d
ata.
I
t
h
as
b
ee
n
m
ad
e
to
o
er
r
o
r
h
an
d
ler
to
h
an
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lin
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er
r
o
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p
r
o
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r
am
a
n
d
s
h
o
w
w
h
ich
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er
v
ice
n
a
m
e
t
h
at
h
as
n
o
t b
ee
n
f
i
lled
.
I
f
Ser
v
ice
I
D
f
illed
u
p
t
h
en
it
m
o
v
e
s
to
B
r
o
ad
ca
s
t State.
b.
B
r
o
ad
ca
s
t:
at
th
is
s
tate,
C
lie
n
t
s
en
d
s
b
r
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ad
ca
s
t
d
ata
to
m
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r
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UDP
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B
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a
d
ca
s
t
I
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f
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2
5
0
m
s
th
at
co
n
tai
n
I
d
en
tit
y
C
lie
n
t
(
Ser
v
ice
n
a
m
e,
I
P
C
lien
t
an
d
Ser
v
ice
Nu
m
b
er
)
.
Af
ter
b
r
o
ad
ca
s
t
m
es
s
ag
e
Evaluation Warning : The document was created with Spire.PDF for Python.
I
n
t J
E
lec
&
C
o
m
p
E
n
g
I
SS
N:
2
0
8
8
-
8708
UDP
P
erva
s
ive
P
r
o
to
co
l I
mp
leme
n
ta
tio
n
fo
r
S
ma
r
t H
o
me
E
n
viro
n
men
t o
n
MyR
I
O
….
(
W
i
ja
ya
K
u
r
n
ia
w
a
n
)
117
r
ec
eiv
es
b
y
Ho
s
t,
th
e
n
Ho
s
t
s
en
d
A
C
K
to
C
lie
n
t
a
n
d
C
lie
n
t
m
o
v
e
to
AC
K
s
tate
a
f
ter
r
ec
eiv
i
n
g
AC
K
f
r
o
m
Ho
s
t.
c.
AC
K:
t
h
is
s
tate
r
ep
r
esen
ted
W
ait
Fo
r
AC
K.
d.
R
eq
:
t
w
o
s
tate
at
Fi
g
u
r
e
3
at
th
i
s
s
tate
W
ait
f
o
r
C
o
n
tr
o
l
Me
s
s
a
g
e
a
n
d
C
h
ec
k
C
o
n
tr
o
l
Dev
ice.
W
ait
C
o
n
tr
o
l
Me
s
s
a
g
e
is
clien
t
w
ai
tin
g
is
th
at
an
y
r
eq
u
est
f
r
o
m
h
o
s
t
r
ec
eiv
ed
b
y
UDP
Po
r
t
th
r
o
u
g
h
Ser
v
ice
I
D
1
.
I
f
t
h
er
e
is
a
r
eq
u
es
t
,
th
en
C
lie
n
t
w
il
l
s
e
n
d
d
ata
t
h
r
o
u
g
h
UDP
P
o
r
t
Ser
v
ice
I
D
3
.
At
th
e
m
o
m
e
n
t
Ser
v
ice
I
D
2
w
ill
s
en
d
B
o
o
lean
d
ata
o
r
o
th
er
d
ata
to
h
o
s
t.
W
h
ile
Ser
v
ice
I
D
1
u
s
ed
to
r
ec
eiv
e
d
ata
f
r
o
m
Ho
s
t
th
at
co
n
tai
n
d
ata
to
tu
r
n
o
n
led
C
lie
n
t.
C
h
ec
k
C
o
n
t
r
o
l
Dev
ice
u
s
ed
to
ch
ec
k
a
n
y
C
lie
n
t
t
h
at
d
is
co
n
n
ec
t
o
r
n
o
t.
I
f
th
er
e
is
n
o
d
is
co
n
n
ec
t
d
ev
ice,
C
lie
n
t
w
il
l
co
n
ti
n
u
e
to
co
m
m
u
n
icate
w
it
h
t
h
e
h
o
s
t
.
B
u
t if
C
li
e
n
t
d
is
co
n
n
ec
ts
w
i
th
Ho
s
t,
th
e
n
C
lie
n
t
g
o
in
g
b
ac
k
t
o
b
r
o
a
d
ca
s
t state.
2
.
3
.
F
un
ct
io
na
l Tes
t
ing
Sce
na
rio
T
o
p
e
r
f
o
r
m
t
h
e
te
s
t
o
n
w
h
et
h
er
th
e
s
y
s
te
m
is
w
o
r
k
i
n
g
p
r
o
p
er
ly
o
r
n
o
t,
w
ill
b
e
co
n
d
u
c
te
d
a
test
o
f
w
h
at
h
as
b
ee
n
d
o
n
e.
I
n
t
h
is
s
y
s
te
m
,
t
h
e
d
esi
g
n
o
f
t
h
e
s
y
s
te
m
h
as
to
o
f
f
er
is
m
ad
e
b
y
a
s
t
ate
m
ac
h
in
e,
s
o
th
e
test
i
n
g
i
s
d
o
n
e
w
i
th
s
tate
tr
a
n
s
it
io
n
te
s
ti
n
g
.
S
t
ate
tr
an
s
itio
n
test
in
g
i
s
u
s
ed
w
h
e
n
t
h
e
s
y
s
te
m
d
e
s
ig
n
ed
an
d
s
tates
d
e
f
i
n
ed
b
y
a
f
i
n
ite
n
u
m
b
er
[
2
2
]
.
T
h
e
s
tate
tr
a
n
s
itio
n
tes
tin
g
te
s
t
i
s
t
h
e
v
alid
tes
tin
g
to
tes
t
s
y
s
te
m
tr
an
s
itio
n
f
r
o
m
o
n
e
s
tate
to
an
o
th
er
an
d
al
s
o
te
s
t
t
h
e
v
alid
tr
an
s
it
io
n
b
ased
o
n
s
y
s
te
m
d
esi
g
n
[
2
3
]
.
E
v
er
y
s
tat
e
h
as
a
n
e
v
e
n
t
a
n
d
ac
tio
n
t
h
at
p
er
f
o
r
m
d
i
f
f
er
e
n
t
co
n
d
it
io
n
.
E
v
er
y
s
tate
s
a
n
d
ac
tio
n
b
a
s
ed
o
n
a
d
esig
n
f
r
o
m
f
i
g
an
d
f
i
g
w
ill b
e
co
n
d
u
cted
o
n
f
u
n
ct
io
n
al
te
s
ti
n
g
r
es
u
lt a
n
d
an
al
y
s
i
s
.
T
ab
le
1
.
Gate
w
a
y
T
esti
n
g
Sce
n
ar
io
T
.
I
D
G
a
t
e
w
a
y
I
n
i
t
i
a
l
S
t
a
t
e
T
e
st
S
c
e
n
a
r
i
o
a
n
d
D
e
scri
p
t
i
o
n
D
e
st
i
n
a
t
i
o
n
S
t
a
t
e
1
I
d
l
e
T
u
r
n
o
n
t
h
e
d
e
v
i
c
e
L
i
st
e
n
i
n
g
2
L
i
st
e
n
i
n
g
O
p
e
n
P
o
r
t
W
a
i
t
F
o
r
B
r
o
a
d
c
a
s
t
3
.
1
W
a
i
t
F
o
r
B
r
o
a
d
c
a
s
t
H
o
st
t
u
r
n
o
n
f
i
r
s
t
t
h
e
n
t
u
r
n
o
n
C
l
i
e
n
t
c
o
n
d
u
c
t
e
d
b
y
1
C
l
i
e
n
t
C
h
e
c
k
D
e
v
i
c
e
D
u
p
l
i
c
a
t
i
o
n
3
.
2
H
o
st
t
u
r
n
o
n
f
i
r
s
t
t
h
e
n
t
u
r
n
o
n
C
l
i
e
n
t
c
o
n
d
u
c
t
e
d
b
y
n
-
C
l
i
e
n
t
C
h
e
c
k
D
e
v
i
c
e
D
u
p
l
i
c
a
t
i
o
n
3
.
3
T
u
r
n
o
n
C
l
i
e
n
t
t
h
e
n
t
u
r
n
o
n
H
o
st
C
o
n
d
u
c
t
e
d
b
y
1
-
C
l
i
e
n
t
C
h
e
c
k
D
e
v
i
c
e
D
u
p
l
i
c
a
t
i
o
n
3
.
4
T
u
r
n
o
n
C
l
i
e
n
t
t
h
e
n
t
u
r
n
o
n
H
o
st
C
o
n
d
u
c
t
e
d
b
y
n
-
C
l
i
e
n
t
C
h
e
c
k
D
e
v
i
c
e
D
u
p
l
i
c
a
t
i
o
n
4
.
1
C
h
e
c
k
D
e
v
i
c
e
D
u
p
l
i
c
a
t
i
o
n
C
h
e
c
k
i
n
g
d
e
v
i
c
e
d
u
p
l
i
c
a
t
i
o
n
c
o
n
d
u
c
t
e
d
b
y
1
C
l
i
e
n
t
w
i
t
h
d
u
p
l
i
c
a
t
i
o
n
o
c
c
u
r
W
a
i
t
f
o
r
B
r
o
a
d
c
a
s
t
4
.
2
C
h
e
c
k
i
n
g
d
e
v
i
c
e
d
u
p
l
i
c
a
t
i
o
n
c
o
n
d
u
c
t
e
d
b
y
mo
r
e
t
h
a
n
1
c
l
i
e
n
t
(
n
-
c
l
i
e
n
t
)
w
i
t
h
d
u
p
l
i
c
a
t
i
o
n
o
c
c
u
r
W
a
i
t
f
o
r
B
r
o
a
d
c
a
s
t
4
.
3
C
h
e
c
k
i
n
g
d
e
v
i
c
e
d
u
p
l
i
c
a
t
i
o
n
c
o
n
d
u
c
t
e
d
b
y
1
C
l
i
e
n
t
w
i
t
h
o
u
t
d
u
p
l
i
c
a
t
i
o
n
A
C
K
S
e
n
t
4
.
4
C
h
e
c
k
i
n
g
d
e
v
i
c
e
d
u
p
l
i
c
a
t
i
o
n
c
o
n
d
u
c
t
e
d
b
y
mo
r
e
t
h
a
n
1
c
l
i
e
n
t
(
n
-
c
l
i
e
n
t
)
w
i
t
h
o
u
t
d
u
p
l
i
c
a
t
i
o
n
o
c
c
u
r
A
C
K
S
e
n
t
5
.
1
A
C
K
S
e
n
t
S
e
n
d
i
n
g
A
C
K
t
o
1
-
C
l
i
e
n
t
t
h
e
n
c
o
n
n
e
c
t
i
o
n
l
o
st
C
h
e
c
k
A
p
p
l
i
a
n
c
e
D
a
t
a
S
t
a
t
u
s
5
.
2
S
e
n
d
i
n
g
A
C
K
t
o
n
-
C
l
i
e
n
t
t
h
e
n
c
o
n
n
e
c
t
i
o
n
l
o
st
C
h
e
c
k
A
p
p
l
i
a
n
c
e
D
a
t
a
S
t
a
t
u
s
5
.
3
S
e
n
d
i
n
g
A
C
K
t
o
1
-
C
l
i
e
n
t
w
i
t
h
o
u
t
l
o
st
c
o
n
n
e
c
t
i
o
n
C
o
n
t
r
o
l
P
r
o
c
e
ss
5
.
4
S
e
n
d
i
n
g
A
C
K
t
o
n
-
C
l
i
e
n
t
w
i
t
h
o
u
t
l
o
st
c
o
n
n
e
c
t
i
o
n
C
o
n
t
r
o
l
P
r
o
c
e
ss
6
.
1
C
h
e
c
k
A
p
p
l
i
a
n
c
e
D
a
t
a
S
t
a
t
u
s
C
h
e
c
k
i
n
g
a
p
p
l
i
a
n
c
e
d
a
t
a
s
t
a
t
u
s
t
o
1
C
l
i
e
n
t
W
a
i
t
f
o
r
B
r
o
a
d
c
a
s
t
6
.
2
C
h
e
c
k
i
n
g
a
p
p
l
i
a
n
c
e
d
a
t
a
s
t
a
t
u
s
t
o
n
-
C
l
i
e
n
t
W
a
i
t
f
o
r
B
r
o
a
d
c
a
s
t
7
.
1
C
o
n
t
r
o
l
P
r
o
c
e
ss
C
o
n
t
r
o
l
a
l
l
d
a
t
a
b
y
1
c
l
i
e
n
t
C
o
n
t
r
o
l
P
r
o
c
e
ss
7
.
2
C
o
n
t
r
o
l
a
l
l
d
a
t
a
b
y
n
-
c
l
i
e
n
t
C
o
n
t
r
o
l
P
r
o
c
e
ss
7
.
3
T
u
r
n
o
f
f
t
h
e
n
t
u
r
n
o
n
H
o
s
t
w
i
t
h
1
C
l
i
e
n
t
I
d
l
e
7
.
4
T
u
r
n
o
f
f
t
h
e
n
t
u
r
n
o
n
H
o
s
t
w
i
t
h
n
-
C
l
i
e
n
t
I
d
l
e
7
.
5
T
u
r
n
o
f
f
t
h
e
n
t
u
r
n
o
n
1
C
l
i
e
n
t
C
h
e
c
k
A
p
p
l
i
a
n
c
e
D
a
t
a
S
t
a
t
u
s
7
.
6
T
u
r
n
o
f
f
t
h
e
n
t
u
r
n
o
n
n
-
C
l
i
e
n
t
C
h
e
c
k
A
p
p
l
i
a
n
c
e
D
a
t
a
S
t
a
t
u
s
E
v
er
y
Ho
s
t
s
tate
m
ac
h
in
e
d
ia
g
r
a
m
at
Fi
g
u
r
e
2
tes
t
co
n
d
u
cted
b
y
T
ab
le
1
,
ev
er
y
s
tate
r
ep
r
es
en
ti
n
g
b
y
a
h
ea
d
er
n
u
m
b
er
at
t
h
e
tab
le
an
d
ev
er
y
s
u
b
n
u
m
b
er
r
ep
r
es
en
ti
n
g
an
y
p
o
s
s
ib
ilit
ie
s
t
h
at
c
o
u
ld
h
ap
p
en
at
t
h
at
s
tate.
Fo
r
e
x
a
m
p
le
“
1
”
it
r
ep
r
esen
tin
g
f
ir
s
t
s
tate
th
at
n
a
m
el
y
I
d
le,
t
h
en
an
o
t
h
er
e
x
a
m
p
le
“
3
.
1
”,
”3
.
2
”,
etc
“x
.
1
,
”x
.
2
”;
“
x
”
o
r
“
3
”
is
r
ep
r
esen
ti
n
g
t
h
e
n
a
m
e
o
f
t
h
e
s
tate
t
h
en
“
3
.
y
”;
“y
”
r
ep
r
esen
t
p
o
s
s
i
b
ilit
ies
t
h
at
h
ap
p
en
in
“x
”
s
tate.
B
y
t
h
at
d
e
f
in
itio
n
,
is
u
s
ed
to
g
i
v
e
a
n
o
t
h
er
s
tate
in
C
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I
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t J
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p
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8
,
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1
,
Feb
r
u
ar
y
2
0
1
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:
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3
120
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r
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[1
]
A
tzo
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L
.
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ra
,
A
.
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d
M
o
ra
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o
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[2
]
V
e
rm
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,
O.
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ries
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P
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In
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li
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2
0
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1
.
[3
]
I.
F
.
A
k
y
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.
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u
,
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S
a
n
k
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ra
m
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a
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d
E.
Ca
y
irci,
"
W
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su
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o
.
4
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.
3
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.
[4
]
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.
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.
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n
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o
,
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.
,
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g
,
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,
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,
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n
,
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in
2
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ter
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tern
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'
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2
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.
[5
]
F
ro
e
h
li
c
h
,
J.,
F
i
n
d
late
r,
L
.
a
n
d
L
a
n
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a
y
,
J.,
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e
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A
,
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0
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.
[6
]
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rish
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.
a
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ll
,
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.
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“
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Dig
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:
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IT
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2
0
1
1
.
[7
]
M
a
,
J.,
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.
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.
,
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p
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,
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p
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5
3
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8
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2
0
0
5
.
[8
]
Co
o
k
,
D.J.
a
n
d
Da
s,
S
.
K.
,
"
Ho
w
sm
a
rt
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re
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le Co
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o
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2
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p
p
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3
-
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3
,
2
0
0
7
.
[9
]
Ro
se
,
K.,
El
d
rid
g
e
,
S
.
a
n
d
C
h
a
p
in
,
L
.
,
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In
tern
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o
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s:
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f
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re
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ted
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rld
,
"
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I
n
ter
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e
t
S
o
c
iety
(
IS
OC),
2
0
1
5
.
[1
0
]
F
o
rd
,
A
.
,
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iciu
,
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,
Ha
n
d
le
y
,
M
.
a
n
d
Bo
n
a
v
e
n
tu
re
,
O.,
“
T
CP
Ex
ten
sio
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s
f
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M
u
lt
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ra
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lt
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d
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ss
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s
”
,
RF
C
6
8
2
4
,
2
0
1
3
.
[1
1
]
A
n
d
re
a
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;
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Bu
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n
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ich
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rz
i,
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tern
e
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g
s
f
o
r
S
m
a
rt
Cit
ies
,
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IEE
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In
ter
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s J
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p
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[1
2
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k
L
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rb
a
n
k
;
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l
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d
ru
se
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;
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d
S
.
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re
tt
;
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il
li
a
m
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.
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.
Ka
sc
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W
irele
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w
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in
g
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d
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d
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n
g
In
tern
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tw
o
rk
in
g
Ch
a
ll
e
n
g
e
s”
,
IEE
E
P
RES
S
,
2
0
1
3
.
[1
3
]
M
.
Ka
ly
a
n
Ch
a
k
ra
v
a
rth
i;
Nith
y
a
V
e
n
k
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tes
a
n
,
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Ex
p
e
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Jim
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