Replacing with cisco core level routers?

Question

network hardware

They gave an approximate network diagram, how it should look like, the number of users is more than 9000, which Cisco equipment, in your opinion, is better to use? I can't decide how

Answer 1

Hmm, and the question is, how did they even let you into the core of such a network, since you ask such questions ?? I'm talking about what kind of question, such an answer.

Answer 2

I plan to find everything similar in characteristics to cisco products

Answer 3

You yourself look at your scheme. It is absolutely not clear where what and why.
In general, look at the Cisco ASR 1000 line