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