I am studying for CCNA and searching Cisco sites for information and material I seeing more & more frequently Network Diagrams that instead of having an IP address at the output there is a number in decimal notation on one or both sides of links.
an example is here on this page
and in particular this image
which I have attached ..
Router R1 on S1 has .1 next to it.
Router R3 on S1 has .3 next to it.
Router R3 on e0 has .3 next to it.
Router R4 on e0 has .4 next to it.
I have seen instances in other diagrams where the decimal number might be associated with an ip address on the subnet for a link .. but this idea is not supported by the example I have given .. or am I wrong?
thanks for helping me .. I just want to get my head around this convention and possibly even find some documentation to read that will explain it.