[Lightning-dev] Forwarding hints in channel update messages
rusty at rustcorp.com.au
Wed Nov 14 20:31:10 UTC 2018
Joost Jager <joost.jager at gmail.com> writes:
> Hello all,
> I'd like to bring up an idea that builds on top of "non-strict" forwarding.
> I commented about this on conner's non-strict forwarding lightning-rfc pr,
> but it is probably better to discuss it on its own in this list.
The decision was made to allow additional channel_update in the error
DECISION: document that scid is not binding, allow extra
channel_updates in errors for “upselling”.
AFAICT this is a deeply weird case. If another channel had capacity you
would have just used it. If another channel doesn't, sending a
channel_update doesn't help. And if there's a channel available at a
higher feerate or longer timeout, it raises the question of why you're
doing that rather than just taking the offer in front of you; that value
clearly used to be acceptable, and now you risk them routing around you.
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