The related question is "How do you run your business out of downtown Fort Worth (American Airlines) and get your updates to 350 airports in 60 countries?"
Saying "run your own network" isn't exactly practical. Even imagining the very small airlines (that partner with big ones for the last leg) that only service a handful of rural airports, this doesn't seem practical.
The days of point to point updates over modems are overish with the amount of data that needs to be consistent transmitted and available.
I can imagine a modem at each airport and a phone bank of about 700 modems that are each getting or sending updates. The long distance calls to distant countries for that data could get expensive. Woe to the power outage in Texas that takes down the phone bank for a day or two or three or four.
Alternatively, there's a system that was developed to do this and it works pretty well most of the time. Combine this with having redundant systems there that are geographically separated. It isn't turnkey, but its probably better than other options that would involve home grown solutions.
Saying "run your own network" isn't exactly practical. Even imagining the very small airlines (that partner with big ones for the last leg) that only service a handful of rural airports, this doesn't seem practical.
The days of point to point updates over modems are overish with the amount of data that needs to be consistent transmitted and available.
I can imagine a modem at each airport and a phone bank of about 700 modems that are each getting or sending updates. The long distance calls to distant countries for that data could get expensive. Woe to the power outage in Texas that takes down the phone bank for a day or two or three or four.
Alternatively, there's a system that was developed to do this and it works pretty well most of the time. Combine this with having redundant systems there that are geographically separated. It isn't turnkey, but its probably better than other options that would involve home grown solutions.