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
A
S
X
L
C
O
R
I
R
I
E
A
I
P
P
O
I
F
O
T
H
E
P
I
R
F
D
R
C
R
H
N
U
C
I
Y
P
I
I
T
S
O
A
V
I
O
G
R
A
O
P
W
G
U
L
V
B
P
U
V
R
L
F
L
L
B
U
I
M
I
L
L
U
A
A
E
E
A
L
A
C
F
O
D
E
S
C
D
A
T
P
C
E
O
L
S
D
E
M
T
O
V
W
I
E
G
A
E
O
M
E
R
O
A
P
M
C
D
D
W
A
R
O
P
M
E
D
H
T
I
L
M
M
T
A
D
R
V
O
D
E
Y
N
M
S
D
H
P
E
N
Q
I
U
G
M
U
D
O
C
S
I
S
D
C
E
T
E
E
M
I
D
U
A
L
C
A
R
R
I
E
R
R
T
W
E
I
Z
P
U
B
L
I
C
W
A
N