[Babel-users] basic bird//babeld interop for ss

[Juliusz Chroboczek]

> * I hit the nlogn branch with the same stuff... it's cpu barely ticks
> over, thousands of routes get distributed... it gets knocked off the
> network... and all end up unreachable, after everybody else runs out of
> some resource or another....

Dave, I'm planning to merge nlogn into master, so if you have time to
debug that, that'd be helpful.