Network in the office how to do it right?

Question

Computer networks

Look, I want to build a network in the office, as I see it now.
The provider enters the media encoder then to the server, (there is an "ideco" security gateway on the server), then from the second network card it goes to the managed switch of the 2nd level (with dhcp disabled) since dhcp distributes the server, from the switch to the patch panel, well, there further into the offices.
The essence of the question is the sales department there is 30-40 people, I want to bring out 4 cords from 4 sockets and into 4 unmanaged switches, 10 people per switch.
Is this a normal scheme for salespeople, will there be a loss on Internet telephony? and that we have.
media encoder --> server-->switch-->patch-panel-->socket-->switch (not managed)

Answer 1

Colleagues suggest correctly, but not for a network of 30-40 users)
A three-level design is not needed for 40 people.
Or is it only the sales department, and the entire network for 1000-5000 people?
For a network of up to 100 people, a flat one-level design with a soft gateway is quite normal.
For a 5000 network - yes, two or three-layer design, normal hardware, no unmanaged switches, hardware, not software firewall.
But I agree with ky0 - One switch for 48 is better than 5 pieces of 10 ports. Two 48-port switches in a stack are better than two 48-port switches not in a stack.
And I agree with Rodion Kudryavtsev - if possible, managed pieces of iron with support for port aggregation are better than stupid soapboxes.
The rest must be looked at from the budget and the existing SCS (it will easily turn out to be more expensive than active equipment)

Answer 2

That's right - according to standard best practices : core, distribution, access. If you are going to collective farm with a gateway in the form of a server with two network cards, the rest is no longer important. The only thing I want to note is that instead of four strange switches with 10 ports, it's better to take one normal one for 48 or two for 24 ports.

Answer 3

Switches of a vlana are able? Managed? Not a collective farm - it's a router, not a server with setevukha. You have a small network, so only the core of the network is the access layer. It is very good to put a stack of 2 l3 switches in the core with a large throughput of one port. Ports are combined by LACP-paormi. And only access switches are plugged into the core - one uplink port for each stack switch. That's right.