How to run BGP and is it worth it?

Question

Border Gateway Protocol

Good day everyone! There is no experience with BGP at all, but there is a need to understand the process of getting it started or even the appropriateness in my situation.
There are a couple of thousand devices that, using SIM cards, transmit data to the server. Operating mode 24/7, downtime is very painful. There are 4 wired providers coming to the servers, a bunch of white IP addresses. But our providers are of so-so quality, so if the city is turned off the light and there is provider equipment, then in half an hour the links are already down. And in general, once a month everyone has some technical difficulties for a couple of hours. I have no more strength ... I don’t feel like messing with modems, and now there are whole garlands of them, I plan to leave only two with white IP addresses. Yes, and modems on the part of the provider fall off sometimes. I would like devices to have access to the server while the last provider is alive.
SIM providers offer a GRE + IPSec + BGP bundle so that SIMs have no chance of not reaching the servers.
I do not fully understand how this thing is embedded on the fingers. I need to register an Autonomous System (AS), will this thing work with the IPs I have, how does registration work, what are the conditions? Do I need it at all, maybe I can do it differently.
I understand that the wording of the question is very weak, but I ask you to help me understand how this thing is being implemented and what are the nuances. Thanks in advance!

Answer 1

If you don’t understand all the pros and cons of what they offer you, don’t
bother with BZHP, such a thing that one careless move and you are already in the news around the world
DCs with thousands of customers don’t always bother
What to do
- calculate the cost of downtime per 1 point, to sweep away well, quite exotic - to gain
confidence in the local admins of the zhsm operators and find out the easiest way for you to make your 24/7 with their participation
- to pour in the trust in the local admins of local networks and find out how easier it is for you to solve your problem
- a satellite channel?
- own [custom] radio channel [on frequencies breaking through barriers]
- own radio channel and [mobile] base with a repeater

Answer 2

I don’t know my AC number, my block of IP addresses, maybe (!) I don’t know for sure - what kind of license. You are offered, if on your fingers, from connecting the operator-subscriber to switch to connecting the operator-operator. If you don’t want to bother with bjp and don’t plan to hire anyone, then consider the option with IP SLA (in cisco it’s called that)

Answer 3

It will not work with the addresses you have, you need to buy a block of IP addresses along with AS, they are offered at auctions, the minimum that I saw is /24th prefix.
Next, you need to coordinate peering with BGP providers and announce (tell your BGP neighbors) your AS with a block of addresses associated with it to the world.
Well, hope that the providers correctly route traffic to you. BGP really saves from unavailability of one or several providers, even on intermediate links, but switching does not occur instantly, it still takes several minutes to rebuild the route. If the main traffic goes to you, you can ask the providers to announce only the default routes for you. Save big on a router with full view.
There is not much chance of getting into the news, since you will not be a transit AS (if configured correctly).

Answer 4

If you have a "server" - this is a program and it can be transferred to another hardware, then in principle you can consider the data center. Maintenance of 2000 connections (especially from modems) will not require "expensive" equipment parameters.
I have worked with 1000 modems. The VPS did not feel the load.
At first, I also did it through local providers, but I had to abandon such a solution (for about the same reasons as yours).