Computer Network Terms

There are presently a few terms used in computer networking. More to follow.

Class ful Addresses – In a Class ful addressing scheme all the IP addresses that are obtainable are divided into the five classes A, B, C, D, and E.

Classless address – The classless address system broadcasts subnets unlike class ful addresses that do not.

VLSM – Variable Length Subnet Masks were developed to allow multiple levels of subnet worked IP addresses within a single network.

CIDR – Classless Inter-Domain Routing (CIDR) is a method of allocating IP addresses and routing Internet Protocol packets.

Prefix Length – The prefix length is a shorthand way of expressing the subnet mask for a particular network.

IP Address                   Subnet Mask                Prefix Length

192.168.1.67               255.255.255.240         192.168.1.67 /28 ß Prefix Length

138.96.58.0                 255.255.0.0                 138.96.0.0 /16 ß Prefix Length

10.1.1.2                       255.0.0.0                     10.0.0.0 /8 ß Prefix Length

Route Summarization – Route summarization is a term used to describe the representation by a single network of a group of contiguous networks. The point of route summarization is to optimize the routing.

Super netting – Super netting is the practice of using a summary network to group multiple classful networks into a single network address. Super netting can make the addresses appear as a single large network, or super net.