On 02/27/2011 09:43 PM, Mark Smith wrote: > so the exits only need to be > able to handle 1/3 of the data, as long as they are 1/3 of the nodes > on a circuit. Yes, exits would only have to handle 1/3 but it is not the case that "they are 1/3 of the nodes on a circuit" because exits (with the guard flag set) are the only nodes that are usable on every position (entry, middle, exit) in a circuit. So if you would have twice as much non-exit bandwidth as exit bandwidth you still wouldn't be able to use the entire exit bandwidth for exiting traffic because this would require that exit nodes will only be used for exiting traffic.