Configuring CQD for SfB Online v3.0 PPTX incorrect use of CIDR
Usage of "CIDR" on slides 12 and 13 is incorrect. CIDR refers to allowing a variable length subnet mask, where as classful address assumed the mask based on the IP subnet. For example, 10.1.2.3 was assumed to have a /8 subnet mask. CIDR allows 10.1.2.3/24, for example, to be used instead.
CIDR is not supernetting.
The example on slide 12 for supernetting is otherwise correct - supernetting is using a subnet with a smaller mask to represent some or all of the smaller possible subnets within the range of IPs represented by the supernet. A subnet is defined on a routing interface, a supernet is not.
thanks a lot for your feedback. We’ll change the references from CIDR to Supernetting shortly.