Which way to manage the switch should I choose?

Question

SSH

I'm going to write a program in C# to monitor switches (which ports are active, enable/disable a given port, is the cooler running on the switch, etc.).
As I understand it, switches can be managed using the SNMP, Telnet, SSH protocols.
Since I have not encountered similar tasks before, I do not know which one is better to use.
There is also such a moment that .NET does not have built-in support for these protocols, and you will have to use third-party libraries, which may turn out to be crooked.
Would love to hear any advice on this.

Answer 1

SNMP (start with v2c, implement v3 with enhanced security if possible) for retrieving data like interface statistics, CPU usage, etc. Using SNMP, you can try to change the configuration (enable / disable the interface), but in this case, you should take care of security issues (i.e. use SNMPv3 with authentication and / or encryption). If something cannot be done via SNMP, then use SSH and the corresponding cli commands.
As for telnet, I don't think that this protocol should be used in "production" at all (data is transmitted in clear text).
What switches are used (vendor/line)?

Answer 2

For typical tasks, of course, snmp is better - input is faster, the output is almost structured information. On the more difficult ssh/telnet. But this is if you need to run all sorts of tracers, lookups, pings...