What are the alternatives to network equipment from countries subject to sanctions?

Question

network hardware

In the forecast, with the deterioration of the geopolitical situation, many organizations will have to abandon the network equipment of well-known manufacturers, most of which are located in the enemy USA (Cisco, Juniper, HP, Arista, Brocade, Extreme Networks...).
It's not my business to judge whether it will be so, but many customers, including those, are already stocking up on stew.
Here comes the question. Are there worthy (and not so) alternatives in terms of functionality that do not fall under sanctions? Huawei is not the only one.
I ask here to collect vendors who are not in enemy coalitions.
Areas of interest:
1. IP routers (ISP/enterprise/DC/branch office...)
2. Switches
3. WIFI
4. Other wireless, RRL
5. SDH/PDH, E1, etc. TDM
6. Information security, firewall, proxy, load-balancing
7. VoIP
8. DWDM and other channel multiplexing equipment.

Answer 1

Nope. I'm afraid that the poor Mikrotik will not be able to take the rap for everyone (stupidly the functionality is not enough), you can use ubicuti if it is not critical equipment. There are poor tlinks and longs (with castrated functionality of two hundred years ago). Plus Huawei (for an amateur).

Answer 2

Yes, but Chinese) For example, Huawei,
I know for sure from Russian equipment that there are switches, synchronous multiplexers, spectral division multiplexing, firewalls. And so look at Rostelecom's import substitution plans.