From rusty at rustcorp.com.au Tue Nov 21 03:05:11 2017 From: rusty at rustcorp.com.au (Rusty Russell) Date: Tue, 21 Nov 2017 13:35:11 +1030 Subject: [Lightning-dev] Bi-directional or uni-directional? In-Reply-To: <022101d36228$8d7e60c0$a87b2240$@gmail.com> References: <022101d36228$8d7e60c0$a87b2240$@gmail.com> Message-ID: <87bmjw2uxk.fsf@rustcorp.com.au> Alan Carbery via Lightning-dev writes: > Hi, > > All the tutorials that I've read about Lightning describe bi-directional > channels. However, reading through the draft RFC I'm wondering if it's > uni-directional only. Can anyone clarify if this is the case and if so then > is there a reason for not doing bi-directional channels in the first > release? No, they're bidirectional! It's just that each side sends a batch of updates followed by a commitment, then the other side replies with an ack. Both sides can do that independently and it all works out. Hope that helps! Rusty.