CBS350 capacity

[ghairapetian]

Hello,

I will setup a small network with 176 devices connected to the IP backbone.

I want to use the CBS350 as an aggregation switch connected to 8 CBS220 switches in fiber 1G.

Do you know if the CBS350 can handle 176 clients ? If yes, how many clients it can handle at a maximum ?

In general, how can I choose a cisco switch for the aggregation/core layer regarding the number of client in the network ?

Thank you very much,

Have a nice day,

Grégory

[balaji.bandi]

Do you know if the CBS350 can handle 176 clients ? If yes, how many clients it can handle at a maximum ?

YES / NO - depends on what user looking to use what application / what throughput need each user ?

These are small business switches, sure it can also work but again depends on the use case.

if you looking at Enterprise level -  look at Cat 9K switches.

[ghairapetian]

Thank you very much for your time and your answer.
The price difference between the 9K series flagged as distribution/core and the CBS is so important (12 000 dollars) that we try to be as fit as possible regarding the needs.
Actually, the 170 clients are in majority industrial controller. They need 10Mb/s maximum each. The type of traffic will only be data. No video or audio traffic.
Only 2 of them are servers and need about 100Mb/s.
I flagged 170 client as small business but maybe I am wrong ( In my idea, a business could be considered small until 250 clients on a network).

The capacity of the CBS350-24S I have is :

* 41.66 Mpps
* 56 Gbps

I did the following calculation :

(168 x 10Mb/s + 2 x 100Mb/s) * 2 = 3,76 Gb/s < 56 Gb/s

But I guess my calculation is too simple to be true. In addition, it means that in theory, the CBS could handle more than 1700 clients before reaching 56Gb/s and that seems far too much.

Maybe, the layer 3 routing process of a layer 3 switch like the CBS350 consumes a lot of resources and reach a threshold before the 56Gb/s switching capacity ?

I am here to gather knowledge about switch sizing. Every piece of knowledge will be useful to me.=

Thank you again,

Grégory

[balaji.bandi · Accepted solution]

Sure agreed price vs features are important some time business decsion.

that is my suggestion of business can offerd that cost.

sure as per your justification that can be duable. since you menttioned industrial (be cautious about heat and other dust factors)  when you choositng SMB swithes vs compare to industrial switches.

also worth buy some spare switches if you going CBS route. in case required emergencey replacement.

[ghairapetian]

It's a good news you agree with my calculation. So I can put my CBS350  light-hearted.

Thank you for your advice, i will take care to be able to replace easily the switch.

Have a nice day,

Grégory

[balaji.bandi]

sure - we follow below process in general :

evalute---deploy---monitor---learn lessons---upgrade (again circle)