In IPv4, CIDR notation came into wide use only after the implementation of the method, which was documented using dotted-decimal subnet mask specification after the slash, for example, . Describing the network prefix width as a single number () was easier for network administrators to conceptualize and to calculate. It became gradually incorporated into later standards documents and into network configuration interfaces.
In IPv4, CIDR notation came into wide use only after the implementation of the method, which was documen:ted using dotted-decimal subnet mask specification after the slash, for example  Describing the network prefix width as a single number () was easier for network administrators to conceptualize and to calculate. It became gradually incorporated into later standards documents and into network configuration interfaces.