On Fri, Jul 27, 2012 at 05:49:34AM -0400, Motoko Kusanagi wrote:

I am very interested in running 100 Mbit (maybe even more) exit nodes at 100$/month, however, a question immediately comes to mind: When we say "100Mbit exit node", do we imply "really unmetered" traffic at 100 Mbit, or do we mean "semi-reasonable traffic limit at 100Mbit speed". "Really unlimited", in my experience, oftentimes turns out to be somewhat problematic.

I don't think we necessarily need to have the 100mbit all to ourselves (see the other discussions here about shared connections), but I think it needs to be able to push a good fraction of 100mbit throughout the month.

So something that can handle 20-30TB/mo is in the right ballpark.

Note that many of our current 100mbit nodes are actually gbit nodes that try to limit themselves to a long-term average (95th percentile) of 100mbit.

I could arrange for 50-100 100Mbit exit nodes running 24/7, with a traffic limit somewhere between 1 and 4 terabytes (will need to scrutinize my current contract and do some math). Arranging for such a number of "honestly unlimited traffic at 100Mbit speed" would be...significantly more problematic.

4TB/mo is good for a 10mbit connection, but not good for a 100mbit connection. You'll end up either needing to hibernate for 80% of the month, or rate limit your relays down a lot.

That said, we don't need 50-100 100mbit exit relays from any single group. Just 5-10 would be nice. Maybe that makes the capacity issue easier?

--Roger