On 07/08/2014 12:13 PM, Guus Sliepen wrote:
On Sun, Jul 06, 2014 at 09:27:37AM +0200, zorun wrote:I was quite surprised to see commmit 332b55d4 ("Change AutoConnect from int to bool"). Is there experimental evidence supporting 3 as the hardcoded maximum number of meta-connections?Yes. Note that it is not a maximum number, but rather the goal to have that number of meta-connections. Simulations show that 3 meta-connections per node results in a robust graph where the removal of any one node will not cause others to be disconnected from the VPN. So 3 is already providing redundancy, more meta-connections per node will just result in more overhead. Setting it lower might result in graphs where not all nodes can reach each other.
I'm not sure I agree. That's only true if you can establish a new metaconnection immediately after you lost one. In practice that's not always the case (e.g. nodes behind NAT, etc.) so it would take an extended amount of time to find a node you can actually establish a metaconnection to. This means you can very well get into a situation where you would lose most metaconnections before you can re-establish some of them.
-- Etienne Dechamps _______________________________________________ tinc mailing list [email protected] http://www.tinc-vpn.org/cgi-bin/mailman/listinfo/tinc
