Subnetting allows you to create multiple local networks within a network.
For more details use this site:
http://www.Cisco.com/en/US/tech/tk365/technologies_tech_note09186a00800a67f5.shtml
segmentation
Yes. Subnetting separates a network into multiple logically defined segments, or subnets.
If you aren't subnetting, the network address is 13.0.0.0
There is no need to use subnetting if you have no wish to further divide up your network into smaller, logical networks.
Subnetting is the practice of dividing a network into two or more networks.
172.16.1.0 24
126
Devices interpret subnetting information on a LAN by determining where the traffic originated and routing it to the appropriate area. By creating subnets, it is possible to have segregated areas of a network.
Class C network if you are not subnetting.
Subnetting Bodry
The number of hosts in a classfull class A network with no subnetting is 16,777,214
190.254.1.29