1
PUBLICWAN
2
PRIVATEWAN
3
SINGLECARRIER
4
DUALCARRIER
5
SDH
6
DWDM
7
DTE
8
DCE
9
LOCALLOOP
10
CO
11
DSLMODEM
12
CABLEMODEM
13
TCARRIER
14
MUNICIPALWIFI
15
HFC
16
DOCSIS
17
PPP
18
PROVIDEREDGE
19
VPLS
20
ATM
Y
S
A
L
C
B
J
J
R
F
C
C
I
P
P
O
I
F
O
F
Z
E
P
P
C
F
D
R
C
R
H
N
J
C
I
P
P
R
I
T
S
O
A
V
I
B
G
R
A
O
P
W
Y
O
L
V
B
P
Z
V
R
L
K
L
L
W
G
X
M
I
L
L
M
A
A
Y
E
A
L
N
G
E
O
D
E
S
C
D
B
T
P
C
N
O
C
I
D
E
M
T
O
I
W
I
E
P
A
W
O
V
E
R
O
A
U
I
C
D
D
W
A
R
O
P
M
E
D
R
T
I
G
Z
M
T
A
Y
R
U
X
D
E
C
N
M
S
D
H
O
E
N
K
I
L
G
M
U
D
O
C
S
I
S
D
C
E
A
E
E
M
R
D
U
A
L
C
A
R
R
I
E
R
R
E
Y
B
N
I
P
U
B
L
I
C
W
A
N