Rev.A0
1-May-11
27
Not all IP address is available in the sub-netted network. Two special
addresses are reserved. They are the addresses with all zero’s and all one’s host
number. For example, an IP address 128.1.2.128, what IP address reserved will be
looked like? All 0s mean the network itself, and all 1s mean IP broadcast.
In this diagram, you can see the subnet mask with 25-bit long,
255.255.255.128, contains 126 members in the sub-netted network. Another is that
the length of network prefix equals the number of the bit with 1s in that subnet mask.
With this, you can easily count the number of IP addresses matched. The following
table shows the result.
Prefix Length No. of IP matched No. of Addressable IP
/32 1
-
/31 2
-
/30 4
2
/29 8
6
/28 16
14
/27 32
30
/26 64
62
/25 128
126
/24 256
254
/23 512
510
/22 1024
1022
/21 2048
2046
/20 4096
4094
/19 8192
8190
/18 16384
16382
/17 32768
32766
/16 65536
65534
Table 2-4
10000000.00000001.00000010.1 0000000
128.1.2.128/25
25 bits
1 0000000
1 1111111
All 0s = 128.1.2.128
All 1s= 128.1.2.255
Subnet
Network
Содержание SM8T2DPA
Страница 1: ...SM8T2DPA 6 Port 10 100 1000Base T plus 2 RJ 45 100 1000 SFP Combo Ports Managed Switch User Guide...
Страница 2: ......
Страница 7: ...Rev A0 1 May 11 v Revision History Date Revision 05 01 2010 A0...
Страница 90: ...Rev A0 1 Mar 11 88 Fig 3 36 Fig 3 37 Fig 3 38...
Страница 91: ...Rev A0 1 May 11 89 Fig 3 39 Fig 3 40 Fig 3 41 Fig 3 42...
Страница 104: ...Rev A0 1 Mar 11 102 Fig 3 61 Set up VLAN Tag Priority Mapping...
Страница 105: ...Rev A0 1 May 11 103 Fig 3 62 Set up VLAN Tag Priority Mapping Finish...
Страница 113: ...Rev A0 1 May 11 111 Fig 3 69 Frame Type Fig 3 70...
Страница 114: ...Rev A0 1 Mar 11 112 Fig 3 71 Fig 3 72 Fig 3 73 ARP...
Страница 115: ...Rev A0 1 May 11 113 Fig 3 74 ARP Fig 3 75 ARP Fig 3 76 ARP Fig 3 77 ARP...
Страница 116: ...Rev A0 1 Mar 11 114 Fig 3 79 ARP Fig 3 80 ARP Fig 3 81 ARP...
Страница 117: ...Rev A0 1 May 11 115 Fig 3 82 ARP Fig 3 83 ARP Fig 3 84 ARP Fig 3 85 ARP Fig 3 86 ARP...
Страница 118: ...Rev A0 1 Mar 11 116 Fig 3 87 ARP Fig 3 88 IPv4...
Страница 119: ...Rev A0 1 May 11 117 Fig 3 89 IPv4 Fig 3 90 IPv4 Fig 3 91 IPv4 Fig 3 92 IPv4 Fig 3 93 IPv4...
Страница 120: ...Rev A0 1 Mar 11 118 Fig 3 94 IPv4 Fig 3 95 IPv4 Fig 3 96 IPv4 Fig 3 97 IPv4 Fig 3 98 IPv4...
Страница 121: ...Rev A0 1 May 11 119 Fig 3 99 IPv4 Fig 3 100 IPv4 Fig 3 101 IPv4 Fig 3 102 IPv4...
Страница 122: ...Rev A0 1 Mar 11 120 Fig 3 103 IPv4 Fig 3 104 IPv4 Fig 3 105 IPv4...
Страница 123: ...Rev A0 1 May 11 121 Fig 3 106 IPv4 Fig 3 107 IPv4 Fig 3 108 IPv4...
Страница 124: ...Rev A0 1 Mar 11 122 Fig 3 109 IPv4 Fig 3 110 IPv4 Fig 3 111 IPv4...
Страница 125: ...Rev A0 1 May 11 123 Fig 3 112 IPv4 Fig 3 113 IPv4 Fig 3 114 IPv4...
Страница 126: ...Rev A0 1 Mar 11 124 Fig 3 115 IPv4 Fig 3 116 IPv4 Fig 3 117 IPv4...
Страница 127: ...Rev A0 1 May 11 125 Fig 3 118 Action Fig 3 119 Rate Limiter...
Страница 128: ...Rev A0 1 Mar 11 126 Fig 3 120 Port Copy Fig 3 121 DMAC Filter...
Страница 129: ...Rev A0 1 May 11 127 Fig 3 122 VLAN ID Filter Fig 3 123 VLAN ID Filter Fig 3 124 Tag Priority...
Страница 141: ...Rev A0 1 May 11 139 Fig 3 126 Set up Policy Rules Fig 3 127 Set up Policy Rules Fig 3 128 Set up Policy Rules...
Страница 142: ...Rev A0 1 Mar 11 140 Fig 3 129 Set up Policy Rules Finish Fig 3 130 Set up Port Policies Fig 3 131 Set up Port Policies...
Страница 218: ...Rev A0 1 Mar 11 216 Fig 4 1...
Страница 321: ...10900 Red Circle Drive Minnetonka MN 55344 Tel 1 952 941 7600 techsupport transition com...
