How to make network redundant and what changes to do in subnetting(or can I just ignore it?)

[shivajikobardan]

This question is pretty basic and anyone who has used packet tracer labs can easily answer this questions.

>Considering these factors, propose a redundant network design architecture in hierarchical form for a bank having four departments namely HR(20 pcs), marketing(20 pcs), finance(45 pcs), IT (30 pcs). Each department has managed its own DHCP server. IT department has managed FTP server, HTTP server, and DNS server as well. Use suitable L1,L2, and L3 devices, physical wires, patch cords, patch panels and wireless access points.

(you can ignore this line) here's the solution of it-: https://pastebin.com/AKqJDVTg

this is non redundant architecture-:

i tried making this redundant-:

How does this affect subnetting? I need ip address for all multiple switches and multiple routers. How do I manage them. For instance S1 and S1* are 2 redundant pairs here.

I'd really appreciate a figure.