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Re: Are next claims true about ILP?

From: Evan Schwartz <evan@ripple.com>
Date: Fri, 25 Aug 2017 13:50:36 +0000
Message-ID: <CAONA2jUN186cvMUzoCe9VEK4oRZN5mPMUGWwx9kcDeArKKHZJw@mail.gmail.com>
To: Enrique Arizon Benito <enrique.arizon.benito@everis.com>, Interledger Community Group <public-interledger@w3.org>
1-3.1 are correct.

3.2 Connectors use conditions and fulfillments even in trustlines. They
only update their balance with their peer when they agree that the (valid)
fulfillment has been submitted before the timeout.

4 is kind of correct. The current view is that the most important thing to
standardize are the protocols that will be used across ILP "Autonomous
Systems", and that's more likely to be universal mode than atomic. Atomic
is very useful for removing connector risk but since it requires commonly
trusted parties anyway, it's slightly less important to have widespread
standards for how you do it. That said, I think there will be standards for
atomic ILP, so if others are interested in working on that we can
definitely start some discussion about it.

On Fri, Aug 25, 2017 at 3:39 AM Enrique Arizon Benito <
enrique.arizon.benito@everis.com> wrote:

> Hi,
>
> Trying to keep in sync with this long thread "An attempt to clean up the
> protocol architecture" and the current state of ILP in general, I just
> would appreciate if someone can correct me about next claims:
>
> 1. During the payment process, ILP requires to keep the current HTLA
> status in a ledger (using the escrow).
>
>   1.1 If the ledger does not support HTLA this status must be kept in the
> connector plugin.
>
> 2. During the payment process, fulfillments and errors must be returned
> through the same payment path that initiated the payment (same set of
> connectors/ledger) forcing to keep an status on each connector mapping
> incomming to outgoing transfers.
>
> 3. For  trust-lines, connectors can connect without a "real" intermediate
> ledger, but they will still use a plugin that certainly will act as a
> virtual ledger to keep balances.
>
>   3.1 That means a ledger always exists, either real or virtual.
>
>   3.2 For trust-lines, connectors are allowed to ignore
> conditions/fulfillments but must still forward them.
>
> 4. There is no support for atomic mode in ILP, but can be build in a
> non-standard (non-ILP-defined) way on-top of it using for example an
> external arbiter for all connectors in the payment proccess.
>
> Regards,
>
> Enrique
>
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-- 

Evan Schwartz
Software Engineer
Managing Director of Ripple Luxembourg
<http:> <http:>
Received on Friday, 25 August 2017 13:51:09 UTC

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