How are they supposed to block the Tor network?
This is obviously the biggest problem in ethiopia. Good job guys you solved the entire countries-
Oh yeah lack of food and supplies.
Already one of the worlds worst shitholes and working hard to keep it that way.
The tor network has the features and the how to documentation to bypass these kinda "restrictions".
Ethiopia has internet?
Essentially, you can determine some types of traffic even if it is encrypted (but not content). That's how some school admins keep https proxies from working correctly. It isn't close to 100% but it is just one more thing.
For example: http://www.ipoque.com/en/products/pr...ication-engine