From: Matt Whitlock <bip@mattwhitlock•name>
To: Jim Phillips <jim@ergophobia•org>
Cc: bitcoin-development@lists•sourceforge.net
Subject: Re: [Bitcoin-development] Zero-Conf for Full Node Discovery
Date: Tue, 26 May 2015 00:37:18 -0400 [thread overview]
Message-ID: <2916218.tfdjj1Sv9m@crushinator> (raw)
In-Reply-To: <CANe1mWwi+fxFU43_2mq-yd_qRsmCwMu_c5wWOpvFS4Un_FoT+Q@mail.gmail.com>
This is very simple to do. Just ping the "all nodes" address (ff02::1) and try connecting to TCP port 8333 of each node that responds. Shouldn't take but more than a few milliseconds on any but the most densely populated LANs.
On Monday, 25 May 2015, at 11:06 pm, Jim Phillips wrote:
> Is there any work being done on using some kind of zero-conf service
> discovery protocol so that lightweight clients can find a full node on the
> same LAN to peer with rather than having to tie up WAN bandwidth?
>
> I envision a future where lightweight devices within a home use SPV over
> WiFi to connect with a home server which in turn relays the transactions
> they create out to the larger and faster relays on the Internet.
>
> In a situation where there are hundreds or thousands of small SPV devices
> in a single home (if 21, Inc. is successful) monitoring the blockchain,
> this could result in lower traffic across the slow WAN connection. And
> yes, I realize it could potentially take a LOT of these devices before the
> total bandwidth is greater than downloading a full copy of the blockchain,
> but there's other reasons to host your own full node -- trust being one.
>
> --
> *James G. Phillips IV*
> <https://plus.google.com/u/0/113107039501292625391/posts>
> <http://www.linkedin.com/in/ergophobe>
>
> *"Don't bunt. Aim out of the ball park. Aim for the company of immortals."
> -- David Ogilvy*
>
> *This message was created with 100% recycled electrons. Please think twice
> before printing.*
next prev parent reply other threads:[~2015-05-26 4:37 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-26 4:06 Jim Phillips
2015-05-26 4:37 ` Matt Whitlock [this message]
2015-05-26 4:46 ` Kevin Greene
2015-05-26 4:56 ` Matt Whitlock
2015-05-26 5:12 ` Kevin Greene
2015-05-26 5:23 ` Luke Dashjr
2015-05-26 4:48 ` Jim Phillips
2015-05-26 4:52 ` Matt Whitlock
2015-05-26 5:15 ` Peter Todd
2015-05-26 5:47 ` Matt Whitlock
2015-05-26 10:48 ` Mike Hearn
2015-05-27 10:16 ` Louis Rossouw
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=2916218.tfdjj1Sv9m@crushinator \
--to=bip@mattwhitlock$(echo .)name \
--cc=bitcoin-development@lists$(echo .)sourceforge.net \
--cc=jim@ergophobia$(echo .)org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox