I
nte
rna
t
io
na
l J
o
urna
l o
f
E
lect
rica
l
a
nd
Co
m
p
ute
r
E
ng
in
ee
ring
(
I
J
E
CE
)
Vo
l.
7
,
No
.
5
,
Octo
b
e
r
2
0
1
7
,
p
p
.
2
7
0
6
~
2
712
I
SS
N:
2088
-
8708
,
DOI
: 1
0
.
1
1
5
9
1
/
i
j
ec
e
.
v
7
i
5
.
pp
2
7
0
6
-
2
712
2706
J
o
ur
na
l ho
m
ep
a
g
e
:
h
ttp
:
//ia
e
s
jo
u
r
n
a
l.c
o
m/o
n
lin
e/in
d
ex
.
p
h
p
/I
JE
C
E
Link
Agg
rega
tion Co
ntrol
Protoco
l
o
n Softw
a
re De
fi
ned
Netw
o
rk
I
.
D
.
I
ra
w
a
t
i
1
, Y
.
Su
n
H
a
riy
a
ni
2
,
S.
H
a
diy
o
s
o
3
T
e
lk
o
m
A
p
p
li
e
d
S
c
ien
c
e
S
c
h
o
o
l,
T
e
lk
o
m
Un
iv
e
r
sit
y
,
In
d
o
n
e
sia
Art
icle
I
nfo
AB
ST
RAC
T
A
r
ticle
his
to
r
y:
R
ec
eiv
ed
Mar
29
,
2
0
1
7
R
ev
i
s
ed
Ma
y
31
,
2
0
1
7
A
cc
ep
ted
A
u
g
11
,
2
0
1
7
A
p
h
y
si
c
a
l
c
o
n
n
e
c
ti
o
n
o
f
c
o
m
p
u
ter
n
e
tw
o
rk
m
u
st
b
e
m
a
d
e
re
li
a
b
l
y
.
B
re
a
k
in
g
c
o
n
n
e
c
ti
o
n
w
il
l
c
a
u
se
c
o
m
m
u
n
ic
a
ti
o
n
b
e
tw
e
e
n
n
o
d
e
s
(f
o
r
e
x
a
m
p
le
ro
u
ters
,
sw
it
c
h
e
s,
h
o
sts) c
a
n
b
e
d
isc
o
n
n
e
c
ted
.
On
e
o
f
th
e
so
lu
ti
o
n
s is
im
p
lem
e
n
ti
o
n
o
f
li
n
k
a
g
g
re
g
a
ti
o
n
(LA
).
LA
in
teg
ra
tes
se
v
e
ra
l
o
f
p
h
y
sic
a
l
p
o
rts
to
g
e
th
e
r
to
m
a
k
e
a
sin
g
le
lo
g
ica
l
c
o
m
m
u
n
ica
ti
o
n
li
n
k
.
A
c
c
o
rd
in
g
ly
,
th
e
re
is
lo
a
d
sh
a
rin
g
traff
ic
a
m
o
n
g
th
e
m
e
m
b
e
r
p
o
rt
o
f
th
e
g
ro
u
p
,
h
ig
h
-
t
h
ro
u
g
h
p
u
t
i
n
c
re
a
sin
g
v
ia
a
sin
g
le
li
n
k
,
a
n
d
re
d
u
n
d
a
n
c
y
p
ro
v
id
in
g
f
o
r
b
ro
k
e
n
li
n
k
s.
We
p
re
se
n
t
th
e
im
p
le
m
e
n
tatio
n
o
f
li
n
k
a
g
g
r
e
g
a
ti
o
n
u
si
n
g
R
y
u
c
o
n
tro
ll
e
r
o
n
S
o
f
t
w
a
re
De
f
in
e
d
Ne
t
w
o
rk
(S
DN
)
to
p
o
l
o
g
y
.
T
h
e
re
su
lt
s
sh
o
w
th
a
t
th
e
im
p
le
m
e
n
tatio
n
o
f
S
DN
w
it
h
Op
e
n
v
S
w
it
c
h
a
n
d
Ry
u
c
o
n
tro
l
ler
c
a
n
su
c
c
e
ss
f
u
ll
y
ru
n
li
n
k
a
g
g
r
e
g
a
ti
o
n
f
u
n
c
ti
o
n
to
s
o
lv
e
th
e
p
ro
b
lem
o
f
li
n
k
fa
il
u
re
.
K
ey
w
o
r
d
s
:
L
i
n
k
Ag
g
r
eg
atio
n
,
R
ed
u
d
an
c
y
,
R
y
u
co
n
tr
o
ller
,
SDN
,
T
r
af
f
ic
Co
p
y
rig
h
t
©
2
0
1
7
In
stit
u
te o
f
A
d
v
a
n
c
e
d
E
n
g
i
n
e
e
rin
g
a
n
d
S
c
ien
c
e
.
Al
l
rig
h
ts
re
se
rv
e
d
.
C
o
r
r
e
s
p
o
nd
ing
A
uth
o
r
:
I
.
D
.
I
r
aw
ati
,
T
elk
o
m
A
p
p
lied
Scie
n
ce
Sch
o
o
l
,
T
elk
o
m
U
n
i
v
er
s
it
y
,
T
elek
o
m
u
n
ik
a
s
i
R
d
.
T
er
u
s
an
B
u
ah
B
atu
,
B
an
d
u
n
g
4
0
2
5
7
I
n
d
o
n
esia
.
E
m
ail:
i
n
d
r
ar
in
i
@
tel
k
o
m
u
n
iv
e
r
s
it
y
.
ac
.
id
1.
I
NT
RO
D
UCT
I
O
N
S
w
itc
h
o
r
r
o
u
ter
o
v
er
th
e
n
et
w
o
r
k
[
4
]
.
Op
en
Flo
w
i
s
d
ev
el
o
p
ed
b
y
Op
en
Net
w
o
r
k
in
g
Fo
u
n
d
atio
n
(
ONF)
T
o
d
ay
,
t
h
e
p
er
f
o
r
m
a
n
ce
o
f
co
m
p
u
ter
n
et
w
o
r
k
s
i
s
a
g
r
ea
t
co
n
ce
r
n
b
y
t
h
e
c
u
s
to
m
er
s
.
Net
w
o
r
k
p
er
f
o
r
m
a
n
ce
is
in
f
l
u
en
ce
d
b
y
th
e
r
eliab
ili
t
y
o
f
t
h
e
p
h
y
s
ical
n
et
w
o
r
k
to
p
o
lo
g
y
.
W
h
e
n
t
h
e
p
h
y
s
ical
co
n
n
ec
tio
n
b
et
w
ee
n
t
w
o
n
o
d
es
is
f
ailed
,
th
en
t
h
e
p
ac
k
et
ca
n
n
o
t
b
e
s
en
t
t
h
r
o
u
g
h
t
h
e
lin
k
.
Ot
h
er
w
i
s
e,
if
a
p
h
y
s
ica
l
co
n
n
ec
tio
n
i
s
a
g
o
o
d
co
n
d
itio
n
w
it
h
li
m
ited
b
an
d
w
id
t
h
,
it
c
an
ca
u
s
e
co
n
g
e
s
tio
n
s
i
n
ce
s
ev
er
al
n
o
d
es
u
s
i
n
g
t
h
e
lin
k
f
o
r
d
eliv
er
y
.
T
h
is
p
r
o
b
lem
ca
n
b
e
s
o
lv
ed
b
y
L
i
n
k
A
g
g
r
eg
atio
n
(
L
A
)
.
L
A
is
a
m
et
h
o
d
th
at
ag
g
r
eg
ate
s
m
u
ltip
le
n
et
w
o
r
k
co
n
n
ec
tio
n
s
ac
ts
as
a
s
in
g
le
lo
g
ical
i
n
ter
f
ac
e
u
s
i
n
g
s
o
f
t
w
ar
e.
L
A
p
r
o
v
i
d
es
r
ed
u
n
d
an
c
y
f
o
r
lin
k
f
ail
u
r
e,
f
o
r
ex
a
m
p
le
:
if
o
n
e
o
r
m
o
r
e
p
h
y
s
ical
in
ter
f
ac
e
o
n
a
lo
g
ical
ag
g
r
eg
a
te
lo
s
s
,
th
e
o
th
er
p
h
y
s
ica
l
co
n
n
ec
tio
n
s
ti
ll
u
p
a
n
d
o
p
er
ate.
Mo
r
eo
v
er
,
L
A
in
cr
ea
s
e
s
t
h
r
o
u
g
h
p
u
t
p
as
s
i
n
g
t
h
r
o
u
g
h
a
s
i
n
g
le
li
n
k
w
h
ich
ca
n
r
ed
u
ce
b
o
ttlen
ec
k
b
y
allo
w
i
n
g
p
ac
k
et
s
to
b
e
tr
av
er
s
ed
o
v
er
m
u
l
tip
le
i
n
ter
f
ac
e
s
.
L
A
is
d
ef
in
ed
i
n
I
E
E
E
8
0
2
.
3
a
d
th
at
allo
w
s
to
g
r
o
u
p
E
th
er
n
et
in
ter
f
ac
e
at
t
h
e
p
h
y
s
ical
la
y
er
to
f
o
r
m
a
s
in
g
le
lin
k
i
n
ter
f
ac
e,
n
a
m
el
y
L
i
n
k
Ag
g
r
eg
atio
n
Gr
o
u
p
(
L
AG)
.
L
in
k
A
g
g
r
e
g
atio
n
C
o
n
tr
o
l
P
r
o
to
co
l
(
L
A
C
P
)
is
a
m
ec
h
a
n
is
m
f
o
r
ch
an
g
in
g
th
e
p
o
r
t
to
p
r
eser
v
e
L
A
G
b
u
n
d
les.
L
AC
P
p
r
o
v
id
es
a
d
y
n
a
m
ic
co
n
f
i
g
u
r
atio
n
th
at
m
ea
n
s
th
e
o
th
er
en
d
ca
n
h
an
d
le
li
n
k
ag
g
r
eg
at
io
n
.
I
n
ad
d
itio
n
,
it h
a
n
d
les f
a
ilo
v
er
au
to
m
atica
ll
y
w
h
en
a
li
n
k
f
ai
led
[
1
]
.
So
f
t
w
ar
e
Def
in
ed
Net
w
o
r
k
(
SDN)
is
a
n
e
w
ar
c
h
itect
u
r
e
f
o
r
a
c
o
m
p
u
ter
n
et
w
o
r
k
th
a
t
s
ep
ar
ates
n
et
w
o
r
k
co
n
tr
o
l
an
d
f
o
r
w
ar
d
i
n
g
f
u
n
ct
io
n
s
,
w
h
ic
h
allo
w
in
g
th
e
co
n
tr
o
ller
ca
n
co
n
n
ec
t
d
ir
ec
tl
y
p
r
o
g
r
a
m
m
ab
le.
SDN’
s
ch
ar
ac
ter
is
tics
ar
e
m
a
n
ag
ea
b
le,
ad
ap
tab
le,
s
ca
lab
le,
ap
p
r
o
p
r
iate
f
o
r
h
ig
h
b
an
d
w
i
d
th
,
an
d
d
y
n
a
m
ic
f
ea
t
u
r
es
o
f
r
ec
en
t
ap
p
licatio
n
s
co
m
p
ar
ed
to
tr
ad
itio
n
al
n
et
w
o
r
k
ar
ch
itectu
r
e
[
2
]
.
Hen
ce
,
u
s
er
s
ca
n
ass
i
g
n
th
e
lo
g
ical
n
et
w
o
r
k
to
p
o
lo
g
y
u
s
i
n
g
s
o
f
t
w
ar
e,
r
eg
ar
d
less
of
u
n
d
er
ly
i
n
g
n
et
w
o
r
k
s
tr
u
ct
u
r
e
[
3
]
.
I
n
g
en
er
al,
SDN
Evaluation Warning : The document was created with Spire.PDF for Python.
I
J
E
C
E
I
SS
N:
2088
-
8708
Lin
k
A
g
g
r
eg
a
tio
n
C
o
n
t
r
o
l P
r
o
to
co
l
o
n
S
o
ftw
a
r
e
Defin
ed
N
etw
o
r
k
(
I
.
D
.
I
r
a
w
a
ti
)
2707
ass
o
ciat
es
w
it
h
Op
en
F
lo
w
p
r
o
to
co
l
as
a
co
m
m
u
n
icatio
n
p
r
o
to
co
l
th
at
r
em
o
te
co
m
m
u
n
icat
io
n
to
th
e
f
o
r
w
ar
d
i
n
g
p
lan
e
o
f
a
n
et
w
o
r
k
as
an
o
r
g
an
izatio
n
th
at
p
r
o
m
o
tes
n
et
w
o
r
k
in
g
th
r
o
u
g
h
SD
N
an
d
s
tan
d
ar
d
izin
g
th
e
Op
en
Flo
w
p
r
o
to
co
l
.
T
h
e
Op
en
Flo
w
ar
ch
itectu
r
e
co
n
s
i
s
ts
o
f
Op
e
n
Flo
w
co
n
tr
o
ller
an
d
Op
en
Flo
w
S
w
itc
h
.
T
h
e
f
u
n
c
tio
n
o
f
Op
e
n
Flo
w
co
n
tr
o
ller
m
a
n
ag
e
s
Op
en
F
lo
w
s
w
itc
h
.
Stu
d
ies
o
n
li
n
k
r
ed
u
n
d
a
n
c
y
o
n
S
DN
h
ad
b
ee
n
d
o
n
e
[
5
]
-
[
7
]
.
Fo
r
ex
a
m
p
le,
M
.
Stei
n
b
ac
h
e
r
et
al
.
p
r
esen
ted
L
AC
P
i
m
p
le
m
e
n
tati
o
n
u
s
in
g
F
lo
o
d
lig
h
t
Op
en
F
lo
w
co
n
tr
o
ller
[
5
]
an
d
P
.
Sk
o
ld
s
tr
o
m
e
t
al
.
p
r
o
p
o
s
ed
v
ir
tu
a
l
ag
g
r
eg
a
tio
n
f
o
r
w
ar
d
i
n
g
m
o
d
el
o
n
b
ac
k
b
o
n
e
to
p
o
lo
g
y
[
7
]
.
W
h
ile
I
.
D.
I
r
a
w
ati
et
al
.
d
esig
n
ed
lin
k
r
ed
u
n
d
an
c
y
f
o
r
h
i
g
h
av
ai
l
a
b
ili
t
y
n
et
w
o
r
k
b
ased
o
n
Op
en
F
lo
w
f
ast
-
f
ailo
v
er
f
o
r
ca
s
ca
d
e
SD
N
to
p
o
lo
g
y
.
Oth
er
r
elate
d
r
esear
ch
in
te
r
m
s
o
f
m
a
in
ta
in
i
n
g
q
u
al
it
y
an
d
n
et
w
o
r
k
p
er
f
o
r
m
a
n
ce
p
r
esen
te
d
in
[
8
]
-
[
9]
.
Yah
y
a
et.
al
p
r
esen
t
E
x
ten
d
ed
Dij
k
s
tr
a
'
s
w
it
h
(
ed
g
es
an
d
n
o
d
es
w
ei
g
h
t
s
)
p
ar
a
m
eter
s
to
f
i
n
d
th
e
s
h
o
r
test
s
er
v
er
[
8
]
.
T
h
is
alg
o
r
i
th
m
is
u
s
ed
f
o
r
SDN
ap
p
licati
o
n
s
.
T
h
e
u
s
e
o
f
a
g
e
n
etic
al
g
o
r
ith
m
lo
ad
b
alan
ce
r
f
o
r
s
er
v
ice
r
ec
o
v
er
y
o
n
t
h
e
i
n
t
er
clo
u
d
n
et
w
o
r
k
is
d
o
n
e
b
y
J
e
n
a
et
al
.
[
9
]
.
I
n
th
i
s
p
ap
er
,
w
e
p
r
esen
t
th
e
i
m
p
le
m
en
ta
tio
n
o
f
I
E
E
E
8
0
2
.
3
ad
d
y
n
a
m
ic
L
AC
P
co
n
f
ig
u
r
atio
n
o
n
SDN
to
p
o
lo
g
y
.
W
e
ap
p
ly
t
h
e
L
AC
P
b
et
w
ee
n
a
s
er
v
er
an
d
a
s
w
i
tch
u
s
i
n
g
Op
en
F
lo
w
,
i.
e.
,
R
y
u
co
n
tr
o
ller
.
R
y
u
m
an
a
g
es
L
AC
P
f
u
n
ctio
n
to
p
er
f
o
r
m
f
ailo
v
er
f
u
n
ctio
n
ali
t
y
.
2.
B
ASI
C
T
H
E
O
RY
2.
1
.
SDN
Arc
hite
ct
ure
So
f
t
w
ar
e
De
f
i
n
ed
Net
w
o
r
k
(
S
DN)
is
a
n
ap
p
r
o
ac
h
to
ap
p
ly
o
p
en
p
r
o
to
co
ls
,
s
u
ch
as
Op
en
Flo
w
to
i
m
p
le
m
en
t
s
o
f
t
w
ar
e
co
n
tr
o
l
b
y
t
h
e
ed
g
e
o
f
t
h
e
n
et
w
o
r
k
to
a
cc
ess
t
h
e
en
t
ir
e
n
et
w
o
r
k
d
e
v
ic
es.
T
h
e
ar
ch
i
tectu
r
e
o
f
SDN
is
as
s
h
o
w
n
i
n
F
ig
u
r
e
1
.
I
t
co
m
p
o
s
es
b
y
th
r
ee
la
y
er
s
,
s
u
c
h
as
in
f
r
astr
u
ctu
r
e
la
y
er
,
co
n
tr
o
l
lay
er
,
an
d
ap
p
licatio
n
la
y
er
.
A
n
I
n
f
r
as
tr
u
ctu
r
e
la
y
er
r
ep
r
esen
t
s
n
et
w
o
r
k
d
ev
ice
as
a
s
w
itc
h
.
C
o
n
tr
o
l
la
y
er
m
a
n
ag
e
s
b
o
th
S
o
u
t
h
er
n
i
n
ter
f
ac
e
a
n
d
n
o
r
th
e
r
n
in
ter
f
ac
e.
T
h
e
So
u
th
er
n
i
n
t
er
f
ac
e
is
u
s
ed
to
co
n
tr
o
l
t
h
e
s
t
at
e
o
f
t
h
e
n
et
w
o
r
k
.
W
h
ile
n
o
r
t
h
er
n
i
n
ter
f
ac
e
p
r
o
v
id
es
p
r
o
g
r
a
m
ap
p
licatio
n
s
to
co
n
f
i
g
u
r
e,
s
u
p
er
v
is
e,
a
n
d
o
p
ti
m
ize
t
h
e
s
er
v
ice
ap
p
licatio
n
s
[
1
0
]
.
Fig
u
r
e
1
.
SDN
ar
ch
itect
u
r
e
[
8
]
2
.
2
.
L
ink
Ag
g
re
g
a
t
io
n Co
nt
ro
l P
ro
t
o
c
o
l (
L
ACP
)
L
i
n
k
a
g
g
r
eg
atio
n
is
a
tec
h
n
i
q
u
e
n
o
ted
in
I
E
E
E
8
0
2
.
1
ax
-
2
0
0
8
b
y
Da
v
id
L
a
w
f
o
r
lo
ca
l
an
d
m
etr
o
p
o
litan
ar
ea
n
et
w
o
r
k
lin
k
a
g
g
r
e
g
atio
n
s
ta
n
d
ar
d
[
1
1
]
.
A
n
d
an
au
to
m
atic
co
n
f
ig
u
r
atio
n
f
ea
t
u
r
e
t
h
at
k
n
o
wn
as
lin
k
a
g
g
r
eg
atio
n
co
n
tr
o
l
p
r
o
to
co
l
(
L
A
C
P
)
is
d
eter
m
in
ed
in
I
E
E
E
8
0
2
.
3
a
d
[
1
]
.
L
A
co
m
b
in
es
s
e
v
er
al
p
h
y
s
ical
in
ter
f
ac
es
to
b
e
as
a
lo
g
ical
li
n
k
t
h
at
u
s
e
f
u
l
f
o
r
in
c
r
ea
s
in
g
b
an
d
w
id
th
b
et
w
ee
n
n
et
w
o
r
k
d
e
v
ices
a
n
d
h
an
d
li
n
g
f
a
u
lt to
ler
an
ce
b
y
lin
k
r
ed
u
n
d
a
n
c
y
.
L
A
f
u
n
ctio
n
s
ar
e
s
h
o
w
n
i
n
Fi
g
u
r
e
2
[
11]
.
T
h
er
e
ar
e
s
ev
er
al
f
ea
tu
r
e
s
o
f
L
AC
P
.
T
h
e
m
a
x
i
m
u
m
q
u
an
t
it
y
o
f
i
n
te
g
r
ated
p
o
r
t
ap
p
r
o
p
r
iates
w
it
h
th
e
ch
a
n
n
els
o
f
th
e
d
e
v
ice
,
u
s
u
a
ll
y
1
to
8
ch
a
n
n
el
s
.
L
AC
P
p
ac
k
ets
u
s
e
m
u
lt
ic
ast
M
A
C
ad
d
r
ess
0
1
:8
0
:c2
:
0
0
:0
0
:
0
2
f
o
r
s
en
d
i
n
g
p
ac
k
e
ts
.
L
AC
P
p
r
o
v
id
es
a
lo
ad
-
b
alan
ce
m
o
d
e
t
h
at
id
e
n
ti
f
ies
t
h
e
m
e
m
b
er
o
f
lin
k
s
w
h
ich
s
er
v
e
lo
ad
b
alan
cin
g
.
L
AC
P
m
o
d
e
h
a
s
t
w
o
s
ta
t
es,
i.e
.
,
ac
tiv
e
an
d
p
ass
iv
e.
Activ
e
m
o
d
e
en
ab
les
L
AC
P
u
n
co
n
d
itio
n
all
y
,
w
h
ile
p
ass
iv
e
m
o
d
e
allo
w
s
L
AC
P
o
n
l
y
w
h
e
n
an
L
AC
P
d
ev
ice
is
d
etec
ted
[
1
2
]
.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
2
0
8
8
-
8708
I
J
E
C
E
Vo
l.
7
,
No
.
5
,
Octo
b
er
201
7
:
2
7
0
6
–
2
7
1
2
2708
I
n
c
r
e
a
s
i
n
g
B
a
n
d
w
i
d
t
h
1
0
0
M
b
p
s
1
0
0
M
b
p
s
2
0
0
M
b
p
s
F
a
u
l
t
T
o
l
e
r
a
n
c
e
1
0
0
M
b
p
s
1
0
0
M
b
p
s
L
i
n
k
u
s
e
d
(
a)
.
L
A
f
o
r
in
cr
e
asin
g
b
an
d
w
id
t
h
(
b
)
.
L
A
f
o
r
f
a
u
lt to
ler
an
ce
Fig
u
r
e
2
.
L
i
n
k
a
g
g
r
e
g
atio
n
f
u
n
ctio
n
,
(
a)
.
I
n
cr
ea
s
i
n
g
b
an
d
w
i
d
th
,
(
b
)
.
Fau
lt to
ler
an
ce
[
1
2
]
3
.
DE
SI
G
N
AND
I
M
P
L
E
M
E
NT
AT
I
O
N
W
e
d
esig
n
an
d
i
m
p
le
m
en
t
L
AC
P
ac
co
r
d
in
g
to
th
e
R
y
u
co
n
tr
o
ller
u
s
in
g
P
y
t
h
o
n
p
r
o
g
r
a
m
m
i
n
g
lan
g
u
a
g
e.
T
h
e
to
p
o
lo
g
y
co
n
s
i
s
ts
o
f
C
o
n
tr
o
ller
(
C
0
)
,
S
w
itc
h
(
S1
)
,
Ho
s
t
1
(
H1
)
as
a
s
er
v
er
,
an
d
Ho
s
t
2
(
H2
)
as
a
clien
t
t
h
at
is
s
h
o
w
n
i
n
Fi
g
u
r
e
3
.
Ho
s
t1
co
n
f
i
g
u
r
atio
n
is
in
te
n
d
ed
to
cr
ea
te
a
s
er
v
er
th
at
s
u
p
p
o
r
ts
lin
k
ag
g
r
e
g
atio
n
ca
p
ab
ilit
ie
s
.
I
t
is
co
n
f
i
g
u
r
ed
b
y
u
s
in
g
m
o
d
p
r
o
b
e
b
o
n
d
in
g
m
o
d
e
f
o
u
r
t
h
at
i
n
d
icate
s
t
h
e
d
y
n
a
m
ic
L
A
is
p
er
f
o
r
m
ed
u
s
i
n
g
L
A
C
P
.
T
h
er
e
is
t
w
o
p
h
y
s
ical
li
n
k
co
n
n
ec
t
io
n
b
et
w
ee
n
S1
an
d
s
er
v
er
H1
v
ia
eth
0
an
d
eth
1
th
at
r
u
n
L
AC
P
f
u
n
ctio
n
.
Fig
u
r
e
3
.
I
m
p
le
m
e
n
tatio
n
to
p
o
lo
g
y
4
.
RE
SUL
T
S
A
ND
AN
AL
Y
SI
S
T
h
e
co
n
f
i
g
u
r
atio
n
o
f
l
in
k
a
g
g
r
eg
atio
n
o
n
s
er
v
er
H1
i
s
s
h
o
w
n
i
n
Fig
u
r
e
4
.
T
h
e
L
AC
P
s
et
u
p
i
s
s
u
cc
e
s
s
f
u
l
.
L
AC
P
r
ate
is
s
lo
w
w
it
h
30
-
s
ec
o
n
d
in
ter
v
als
.
Fig
u
r
e
4
.
L
A
co
n
f
i
g
u
r
atio
n
o
n
s
er
v
er
H1
Evaluation Warning : The document was created with Spire.PDF for Python.
I
J
E
C
E
I
SS
N:
2088
-
8708
Lin
k
A
g
g
r
eg
a
tio
n
C
o
n
t
r
o
l P
r
o
to
co
l
o
n
S
o
ftw
a
r
e
Defin
ed
N
etw
o
r
k
(
I
.
D
.
I
r
a
w
a
ti
)
2709
H1
-
eth
0
a
n
d
H2
-
et
h
1
ac
t a
s
li
n
k
a
g
g
r
eg
atio
n
w
it
h
u
p
s
tat
u
s
an
d
ea
ch
li
n
k
h
av
e
1
0
0
0
0
Mb
p
s
r
ate.
R
y
u
co
n
tr
o
ller
r
u
n
s
L
AC
P
f
u
n
ctio
n
to
p
er
f
o
r
m
f
a
u
lt
to
ler
an
ce
f
u
n
c
tio
n
alit
y
.
SDN
A
p
p
s
o
p
er
ates
s
i
m
p
le
_
s
w
itch
_
lacp
_
1
3
th
at
r
u
n
n
i
n
g
o
n
Op
en
Flo
w
1
.
3
.
W
h
en
s
er
v
er
H1
tr
an
s
m
its
L
AC
P
d
ata
u
n
it
e
v
er
y
3
0
s
ec
o
n
d
s
,
th
e
S
w
i
tch
S1
tak
e
s
in
th
e
L
AC
P
d
ata
u
n
i
t
f
r
o
m
s
er
v
er
H1
.
W
e
ca
n
s
ee
th
e
p
r
o
ce
s
s
th
at
o
cc
u
r
s
o
n
th
e
co
n
tr
o
ller
C
0
as
s
h
o
w
n
i
n
Fig
u
r
e
5
.
L
AC
P
r
ec
eiv
ed
s
tat
u
s
i
n
d
icate
s
an
L
AC
P
d
ata
u
n
it
w
as
r
ec
ei
v
ed
b
y
th
e
p
o
r
t
an
d
L
AC
P
s
en
t
s
at
u
s
m
ea
n
s
an
L
AC
P
d
ata
u
n
it
was
s
en
t
b
y
t
h
e
p
o
r
t
.
W
h
er
ea
s
t
h
e
s
la
v
e
i/
f
h
a
s
j
u
s
t
w
o
r
k
i
n
g
s
tate
r
ep
r
esen
t
s
a
ch
an
g
e
i
n
s
tate
f
r
o
m
d
is
ab
le
to
en
ab
le.
T
h
e
s
tate
o
f
th
e
L
AC
P
d
ata
u
n
it
ti
m
e
h
a
s
ch
an
g
ed
d
en
o
te
s
t
h
at
t
h
e
t
i
m
e
f
o
r
co
m
m
u
n
icat
io
n
m
o
n
ito
r
in
g
w
a
s
c
h
an
g
ed
.
I
n
th
i
s
e
v
e
n
t,
t
h
e
s
tan
d
ar
d
s
tate
is
co
n
v
er
ted
in
to
lo
n
g
ti
m
eo
u
t p
e
r
io
d
e
(
0
to
9
0
s
ec
o
n
d
s
)
.
Fig
u
r
e
5
.
R
y
u
co
n
tr
o
ller
r
u
n
s
L
AC
P
T
h
e
in
f
o
r
m
a
tio
n
o
f
f
lo
w
e
n
tr
y
o
n
S1
i
s
s
h
o
w
n
in
Fig
u
r
e
6
.
L
A
C
P
d
ata
u
n
it
f
r
o
m
s
er
v
er
H1
is
r
ec
eiv
ed
b
y
th
e
S
w
i
tch
S1
.
S
w
itc
h
S1
r
esp
o
n
d
s
b
y
s
en
d
i
n
g
L
AC
P
d
ata
u
n
it.
T
h
e
S
witch
S1
r
ep
la
y
s
b
y
P
ac
k
et
-
I
n
m
es
s
ag
e
i
n
ca
s
e
L
AC
P
d
ata
u
n
it
w
it
h
et
h
er
n
et
t
y
p
e
0
x
8
8
0
9
is
tr
an
s
m
it
ted
f
r
o
m
H1
-
et
h
0
u
s
in
g
t
h
e
s1
-
et
h
1
i
n
p
u
t
p
o
r
t
a
n
d
t
h
e
M
AC
ad
d
r
ess
0
0
:0
0
:0
0
:0
0
:0
0
:1
1
.
Mo
r
eo
v
er
,
th
e
S
w
i
tch
S1
r
e
p
lay
s
b
y
t
h
e
P
ac
k
et
-
I
n
m
es
s
ag
e
i
n
ca
s
e
L
AC
P
d
at
a
u
n
it
w
it
h
eth
er
n
et
t
y
p
e
0
x
8
8
0
9
is
tr
an
s
m
itted
f
r
o
m
H1
-
eth
1
u
s
in
g
th
e
s1
-
eth
2
in
p
u
t
p
o
r
t
an
d
th
e
M
A
C
ad
d
r
ess
0
0
:0
0
:0
0
:0
0
:0
0
:2
1
.
T
h
e
s
w
itc
h
p
o
r
t
s
h
av
e
b
ee
n
ab
le
to
p
er
f
o
r
m
t
h
e
L
AC
P
f
u
n
ctio
n
s.
Fig
u
r
e
6
.
S
w
i
tch
L
AC
P
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
2
0
8
8
-
8708
I
J
E
C
E
Vo
l.
7
,
No
.
5
,
Octo
b
er
201
7
:
2
7
0
6
–
2
7
1
2
2710
I
n
Fi
g
u
r
e
7
,
w
e
test
th
e
L
AC
P
f
a
u
lt
to
ler
an
ce
b
y
b
r
ea
k
i
n
g
t
h
e
li
n
k
o
f
H1
-
eth
0
.
W
e
r
u
n
t
h
e
co
m
m
a
n
d
ip
lin
k
s
et
h
1
-
et
h
0
n
o
m
a
s
ter
.
T
h
e
s
tate
o
f
co
n
tr
o
ller
C
0
is
s
h
o
w
n
in
F
ig
u
r
e
8
.
T
h
e
s
tate
o
f
L
AC
P
ex
ch
a
n
g
e
ti
m
eo
u
t
h
a
s
o
cc
u
r
e
d
d
en
o
tes
t
h
at
t
h
e
r
e
is
n
o
co
m
m
u
n
icatio
n
co
n
tr
o
ll
in
g
u
n
t
i
l
elap
s
ed
ti
m
e.
I
n
ad
d
itio
n
,
th
e
s
atu
s
o
f
s
lav
e
s
ta
te
ch
an
g
ed
p
o
r
t:
1
en
ab
le:
Fals
e
r
ep
r
esen
ts
th
at
t
h
er
e
is
a
ch
an
g
e
i
n
h
a
n
d
lin
g
o
f
d
ata
tr
an
s
m
i
s
s
io
n
f
r
o
m
p
o
r
t
2
to
p
o
r
t
1
.
T
h
en
,
all
li
s
ted
t
h
at
co
n
tai
n
ed
p
r
ev
io
u
s
M
AC
a
d
d
r
ess
es
an
d
fl
o
w
en
t
r
ies
w
ill
d
elete
d
a
u
to
m
a
tic
all
y
.
I
f
t
h
e
n
e
w
co
m
m
u
n
icatio
n
w
il
l
b
e
r
ec
r
ea
ted
,
th
e
n
e
w
f
l
o
w
e
n
tr
ies
a
n
d
n
e
w
MA
C
ad
d
r
ess
es a
r
e
r
eg
is
ter
ed
ag
ain
.
Fig
u
r
e
7
.
L
i
n
k
b
r
o
k
en
s
ce
n
ar
i
o
Fig
u
r
e
8
.
R
y
u
co
n
tr
o
ller
is
s
h
o
w
n
li
n
k
b
r
ea
k
I
n
Fi
g
u
r
e
9
is
s
h
o
w
n
t
h
e
p
i
n
g
s
tate
o
f
H1
to
S1
co
n
n
ec
t
io
n
.
B
ec
au
s
e
o
f
b
r
o
k
en
l
in
k
o
n
H1
-
et
h
0
to
S1
,
p
in
g
ca
n
n
o
t
b
e
s
e
n
t
f
r
o
m
H1
to
S1
.
T
h
e
ti
m
e
r
eq
u
ir
ed
f
o
r
r
ec
o
v
er
y
i
s
ab
o
u
t
9
0
s
ec
o
n
d
s
.
T
h
e
th
r
o
u
g
h
p
u
t
r
esu
lt
i
s
s
h
o
w
n
i
n
f
i
g
u
r
e
1
0
.
T
h
e
o
b
s
er
v
atio
n
is
d
o
n
e
in
6
0
0
s
ec
o
n
d
s
.
W
h
en
th
e
e
v
en
t
o
f
lin
k
f
a
ilu
r
e,
t
h
e
th
r
o
u
g
h
p
u
t
w
i
ll
d
ec
r
ea
s
e
u
n
t
i
l
0
Mb
p
s
o
v
er
9
0
s
ec
o
n
d
s
.
T
h
e
a
v
er
ag
e
o
f
t
h
r
o
u
g
h
p
u
t
i
n
n
o
r
m
al
co
n
d
itio
n
is
ab
o
u
t
7
4
1
3
.
3
3
M
b
p
s
.
Th
e
p
o
r
t sta
te
ch
a
n
g
e
d
in
to
fa
ls
e
Evaluation Warning : The document was created with Spire.PDF for Python.
I
J
E
C
E
I
SS
N:
2088
-
8708
Lin
k
A
g
g
r
eg
a
tio
n
C
o
n
t
r
o
l P
r
o
to
co
l
o
n
S
o
ftw
a
r
e
Defin
ed
N
etw
o
r
k
(
I
.
D
.
I
r
a
w
a
ti
)
2711
Fig
u
r
e
9
.
P
in
g
s
tate
o
b
s
er
v
atio
n
u
s
in
g
W
ir
es
h
ar
k
Fig
u
r
e
10
.
T
h
r
o
u
g
h
p
u
t o
b
s
er
v
atio
n
in
l
in
k
f
a
ilu
r
e
p
er
io
d
5
.
CO
NCLUS
I
O
N
W
e
im
p
le
m
e
n
t
lin
k
a
g
g
r
e
g
a
tio
n
s
u
cc
e
s
s
f
u
ll
y
u
s
in
g
R
y
u
co
n
tr
o
lle
r
o
n
SDN
to
p
o
lo
g
y
.
L
AC
P
p
r
o
v
id
es
f
au
lt
to
ler
an
ce
i
n
th
e
co
m
m
u
n
ica
tio
n
m
o
n
ito
r
i
n
g
b
et
w
ee
n
n
o
d
es
i
n
th
e
n
e
t
w
o
r
k
.
T
h
e
r
ec
o
v
er
y
ti
m
e
is
ab
o
u
t
9
0
s
ec
o
n
d
s
.
T
h
is
p
r
o
ce
d
u
r
e
ca
n
ap
p
ly
f
o
r
all
co
n
n
ec
t
io
n
e
n
tire
th
e
n
et
w
o
r
k
.
Fo
r
i
m
p
r
o
v
in
g
t
h
e
p
er
f
o
r
m
a
n
ce
,
w
e
ca
n
s
et
th
e
i
n
p
u
t p
ar
a
m
eter
o
f
L
AC
P
ac
co
r
d
in
g
to
th
e
n
et
w
o
r
k
r
eq
u
ir
e
m
e
n
ts
.
r
ec
o
v
er
y
ti
m
e
T
h
e
p
r
o
ce
s
s
is
r
estar
ted
State
b
ef
o
r
e
lin
k
b
r
o
k
en
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
2
0
8
8
-
8708
I
J
E
C
E
Vo
l.
7
,
No
.
5
,
Octo
b
er
201
7
:
2
7
0
6
–
2
7
1
2
2712
RE
F
E
R
E
NC
E
S
[1
]
IEE
E
S
ta
n
d
a
rd
fo
r
Et
h
e
rn
e
t
L
in
k
Ag
g
re
g
a
t
io
n
:
IEE
E8
0
2
.
3
a
d
,
a
v
a
il
a
b
le:
h
tt
p
:/
/w
ww
.
ie
e
e
8
0
2
.
o
rg
/3
/
a
d
/,
a
c
c
e
ss
e
d
a
t:
Ju
n
e
1
3
,
2
0
1
6
,
2
0
1
6
-
01
-
10.
[2
]
L
.
Ju
n
y
i,
L
.
L
in
,
Z.
Yo
n
g
x
in
,
"
Dire
c
t
Ra
d
io
F
re
q
u
e
n
c
y
S
a
m
p
li
n
g
S
y
ste
m
o
n
S
o
f
twa
re
d
e
fin
e
d
Ra
d
i
o
,
”
T
EL
KOM
NIKA
In
d
o
n
e
si
a
n
J
o
u
rn
a
l
o
f
El
e
c
trica
l
En
g
in
e
e
rin
g
.
,
v
o
l
.
1
2
,
n
o
.
1
1
,
p
p
.
7
8
2
4
-
7
8
3
1
,
2
0
1
4
.
[3
]
K.
G
re
e
n
e
.
T
R1
0
:
S
o
ft
w
a
re
-
De
fi
n
e
d
Ne
two
rk
in
g
.
M
IT
T
e
c
h
n
o
lo
g
y
Re
v
ie
w
.
2
0
0
9
;
M
a
rc
h
–
A
p
ril
.
[4
]
N.
M
c
Ke
o
w
n
,
T
.
A
n
d
e
rso
n
,
H.
Ba
lak
rish
n
a
n
,
G
.
P
a
ru
lk
a
r,
L
.
P
e
ters
o
n
,
J.
Re
x
f
o
rd
,
S
.
S
h
e
n
k
e
r
a
n
d
J.
T
u
rn
e
r.
Op
e
n
Fl
o
w:
En
a
b
l
in
g
In
n
o
v
a
ti
o
n
in
C
a
mp
u
s
Ne
two
rk
s
.
A
CM
S
IG
COMM
Co
m
p
u
ter
Co
m
m
u
n
ica
ti
o
n
Re
v
ie
w
.
2
0
0
8
;
3
8
(
2
):
6
9
-
7
4
.
[5
]
M
.
S
tein
b
a
c
h
e
r
a
n
d
M
.
Bre
d
e
l.
L
ACP
M
e
e
ts
Op
e
n
Fl
o
w
–
S
e
a
ml
e
ss
L
in
k
Ag
g
re
g
a
ti
o
n
t
o
Op
e
n
Fl
o
w
Ne
two
rk
s
.
A
v
a
il
a
b
le:
h
tt
p
s:
//
tn
c
1
5
.
tere
n
a
.
o
r
g
/g
e
t
f
il
e
/1
8
6
7
.
A
c
c
e
ss
e
d
a
t:
Ja
n
u
a
r
y
1
3
,
2
0
1
6
.
[6
]
I.
D.
Ira
w
a
ti
,
S
.
Ha
d
i
y
o
so
a
n
d
Y.
S
.
Ha
riy
a
n
i.
L
in
k
Re
d
u
d
a
n
c
y
f
o
r
Hig
h
Av
a
il
a
b
il
it
y
Ne
t
w
o
rk
b
a
se
d
o
n
S
o
f
twa
re
De
f
in
e
d
Ne
t
w
o
rk
.
P
e
rtan
ik
a
Jo
u
r
n
a
l
o
f
S
c
ien
c
e
&
T
e
c
h
n
o
l
o
g
y
.
(u
n
d
e
r
re
v
ie
w
)
[7
]
P.
S
k
o
ld
stro
m
a
n
d
B.
C.
S
a
n
c
h
e
z
.
Vi
rtu
a
l
Ag
g
re
g
a
ti
o
n
u
si
n
g
S
D
N
.
IEE
E
P
r
o
c
e
e
d
in
g
:
Eu
ro
p
e
a
n
W
o
rk
sh
o
p
o
n
S
o
f
tw
a
r
e
De
f
in
e
d
Ne
tw
o
rk
s.
2
0
1
3
.
[8
]
W
.
Y
a
h
y
a
,
A
.
Ba
su
k
i
a
n
d
J.R.
J
ian
g
.
T
h
e
Ex
ten
d
e
d
Dijk
stra
’s
-
b
a
se
d
L
o
a
d
Ba
lan
c
in
g
f
o
r
Op
e
n
F
l
o
w
Ne
t
w
o
rk
.
In
ter
n
a
t
io
n
a
l
J
o
u
rn
a
l
o
f
E
lec
trica
l
a
n
d
C
o
mp
u
ter
En
g
in
e
e
rin
g
(
IJ
ECE
)
.
2
0
1
5
;
5
(2
):
2
8
9
-
2
9
6
.
[9
]
T
.
Je
n
a
a
n
d
J.
R.
M
o
h
a
n
ty
,
Disa
ste
r
Re
c
o
v
e
r
y
S
e
r
v
ice
s
in
In
terc
lo
u
d
Us
in
g
G
e
n
e
ti
c
A
lg
o
rit
h
m
Lo
a
d
Ba
lan
c
e
r.
In
ter
n
a
t
io
n
a
l
J
o
u
rn
a
l
o
f
E
lec
trica
l
a
n
d
C
o
mp
u
ter
En
g
in
e
e
rin
g
(
IJ
ECE
)
.
2
0
1
6
;
6
(
4
);
1
8
2
8
-
1
8
3
8
.
[1
0
]
Y.
Zh
o
u
,
L
.
Ru
a
n
,
L
.
X
iao
a
n
d
R.
L
iu
.
A
M
e
th
o
d
fo
r
L
o
a
d
Ba
la
n
c
i
n
g
b
a
se
d
o
n
S
o
ft
wa
re
-
De
fi
n
e
d
Ne
two
rk
.
A
d
v
a
n
c
e
d
S
c
ien
c
e
a
n
d
T
e
c
h
n
o
l
o
g
y
L
e
tt
e
rs.
2
0
1
4
;
4
5
:
43
-
4
8
.
[1
1
]
D.
L
a
w
,
IEE
E
S
ta
n
d
a
rd
fo
r
L
o
c
a
l
a
n
d
M
e
tro
p
o
li
t
a
n
Ar
e
a
Ne
two
rk
-
L
in
k
Ag
g
re
g
a
t
io
n
.
A
v
a
il
a
b
le:
h
tt
p
:
//
sta
n
d
a
r
d
s.iee
e
.
o
rg
/f
in
d
std
s/
sta
n
d
a
rd
/
8
0
2
.
1
A
X
-
2
0
0
8
.
h
tm
l.
A
c
c
e
ss
e
d
a
t:
F
e
b
ru
a
ry
1
0
,
2
0
1
6
.
[1
2
]
R.
P
.
T
e
a
m
.
RY
U
S
DN
Fra
me
wo
rk
.
A
v
a
il
a
b
le:
h
tt
p
s://
o
srg
.
g
i
th
u
b
.
io
/ry
u
-
b
o
o
k
/en
/Ry
u
b
o
o
k
.
p
d
f
.
A
c
c
e
ss
e
d
a
t:
Ja
n
u
a
ry
4
,
2
0
1
6
.
Evaluation Warning : The document was created with Spire.PDF for Python.