Enterasys VH-2402-L3 Management Manual page 150

11111111.11100000.00000000.00000000 – and you can
see that there are 11 "1"s or 11 bits used to mask the
network address from the node address. Written in CIDR
notation this becomes:
10.32.0.0/11
# of Subnet Mask
Bits
2 255.192.0.0
3 255.224.0.0
4 255.240.0.0
5 255.248.0.0
6 255.252.0.0
7 255.254.0.0
8 255.255.0.0
9 255.255.128.0
10 255.255.192.0
11 255.255.224.0
12 255.255.240.0
13 255.255.248.0
14 255.255.252.0
15 255.255.254.0
16 255.255.255.0
17 255.255.255.128
18 255.255.255.192
19 255.255.255.224
20 255.255.255.240
21 255.255.255.248
22 255.255.255.252
# of Subnet Mask
Bits
2 255.255.192
3 255.255.224.0
4 255.255.240.0
5 255.255.248.0
6 255.255.252.0
7 255.255.254.0
8 255.255.255.0
9 255.255.255.128
10 255.255.255.192
11 255.255.255.224
12 255.255.255.240
13 255.255.255.248
14 255.255.255.252
142 VH-2402-L3 Management Guide
CID # of
R Subnets
Not
atio
n
/10 2
/11 6
/12 14
/13 30
/14 62
/15 126
/16 254
/17 510
/18 1022
/19 2046
/20 4094
/21 8190
/22 16382
/23 32766
/24 65534
/25 131070
/26 262142
/27 525286
/28 1048574
/29 2097150
/30 4194302
Table 2-5. Class A Subnet Masks
CIDR
Notation
/18
/19
/20
/21
/22
/23
/24
/25
/26
/27
/28
/29
/30
# of Hosts
4194302
2097150
1048574
524286
262142
131070
65534
32766
16382
8190
4094
2046
1022
510
254
126
62
30
14
6
2
# of # of
Subnets Hosts
2 16382
6 8190
14 4094
30 2046
62 1022
126 510
254 254
510 126
1022 62
2046 30
4094 14
8190 6
16382 2
Total Hosts
8388604
12582900
14680036
15728580
16252804
16514820
16645636
16710660
16742404
16756740
16760836
16756740
16742404
16710660
16645636
16514820
16252804
15728580
14680036
12582900
8388604
Total
Hosts
32764
49140
57316
61380
63364
64260
64516
64260
63364
61380
57316
49140
32764
9033691-01