How to Draw a Labeled Wave Chart

How to draw a labeled block diagram showing the relationship between different router modes?

Still not entirely sure what you're looking for, but are you looking for something similar to the diagram below? If so, please let me know and I can provide an explanation or let me know what's missing and I'll do my best to provide you with a helpful example.

Best guess picture

Ok, since this is seemingly what you're trying to achieve, I'll go into a little bit more detail on what it says (note how I said in a comment on the question that I don't do the job.) For you though I explain it so that you can do it yourself

First the basic parts of the diagram. The gray boxes with arrows represent the routers. The lines connecting the routers to other parts are some kind of physical medium - ethernet, serial, or whatever. The line with many small wires represents an Ethernet network to which almost anything can be connected - clients, servers, embedded devices and the like.

I used the CIDR notation to describe the networks.

Now we can label the routers as follows:

ROUTER1 - The router with the IP addresses and and
ROUTER2 - The router with the IP addresses and
ROUTER3 - The router with the IP addresses and

And now I'm going to adapt it to what you would see in the example you gave me of yours

have given

This is your output:

A on ROUTER2 would produce something similar in my example:

This tells me that ROUTER2 knows:

  1. It knows the and networks because it has a direct physical connection to them. That is, it has an interface that is assigned to an IP on this network and is in an up / up state.
  2. It knows the network because of a RIP (from the head of my head, I think D is the symbol for RIP) from ROUTER1
  3. It knows the network due to a RIP announcement from ROUTER1 that its announcement would have received from ROUTER3

This diagram shows you in a short summary how all routers are connected to each other and which networks are also available. You can also put a different label on each interface showing which networks you are registering to the other routers via RIP, OSPF, BGP, RIP2, etc.

Hope this helps you and let me know if you need any more information about what is going on.