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| author | Jeff Garzik <jgarzik@exmulti.com> | 2013-03-23 11:24:41 -0400 |
|---|---|---|
| committer | bitcoindev <bitcoindev@gnusha.org> | 2013-03-23 15:24:48 +0000 |
| commit | b8712f153f448614ff6c91b0a23426e452ae9509 (patch) | |
| tree | 888a14e81bb67f73165b8597d5f6a21abcc0221e | |
| parent | 0b908ed5ed6ce4cef02087f5a571115c4e8eebde (diff) | |
| download | pi-bitcoindev-b8712f153f448614ff6c91b0a23426e452ae9509.tar.gz pi-bitcoindev-b8712f153f448614ff6c91b0a23426e452ae9509.zip | |
Re: [Bitcoin-development] A bitcoin UDP P2P protocol extension
| -rw-r--r-- | 88/301716d89aabb56a689b1185b1f7f44ea4fd7b | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/88/301716d89aabb56a689b1185b1f7f44ea4fd7b b/88/301716d89aabb56a689b1185b1f7f44ea4fd7b new file mode 100644 index 000000000..1d14257dd --- /dev/null +++ b/88/301716d89aabb56a689b1185b1f7f44ea4fd7b @@ -0,0 +1,91 @@ +Received: from sog-mx-3.v43.ch3.sourceforge.com ([172.29.43.193] + helo=mx.sourceforge.net) + by sfs-ml-3.v29.ch3.sourceforge.com with esmtp (Exim 4.76) + (envelope-from <jgarzik@exmulti.com>) id 1UJQJM-0005nH-UO + for bitcoin-development@lists.sourceforge.net; + Sat, 23 Mar 2013 15:24:48 +0000 +X-ACL-Warn: +Received: from mail-pa0-f43.google.com ([209.85.220.43]) + by sog-mx-3.v43.ch3.sourceforge.com with esmtps (TLSv1:RC4-SHA:128) + (Exim 4.76) id 1UJQJL-0001Qm-OD + for bitcoin-development@lists.sourceforge.net; + Sat, 23 Mar 2013 15:24:48 +0000 +Received: by mail-pa0-f43.google.com with SMTP id rl6so376361pac.2 + for <bitcoin-development@lists.sourceforge.net>; + Sat, 23 Mar 2013 08:24:41 -0700 (PDT) +X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; + d=google.com; s=20120113; + h=mime-version:x-received:x-originating-ip:in-reply-to:references + :date:message-id:subject:from:to:cc:content-type:x-gm-message-state; + bh=tbhXH7zmp3Mh62c3D4Jm/U5aFjQ+hw5WFytUIUlfa44=; + b=W7+NVjKd0LMQc+CCiJya9i+Q4YkD5X6msHc5KCL1TPMh2IHeFnJfTtuaOm4rcD65KI + Hb1pEShCZr1+Bj3b/5mAqMwx9WddPcWWS1p0mkGIAcBXxrCWQPYVGzhYEZB0OZLmTQRe + +gHSuduHNRtCiGPn9FE9/lgcFrlgYrp4OsfnegubowG41AiHkNGwFc1a+rG/ZvYKnA7w + nGnM/H5kKyr4Ivz5GZn4743mG6h044auhiJinF8gWiQqom6LZ3ja8YwZbabC2So7rPCa + R14khBphA+zdgOfH9Zs2KCFwQBT8/DdGgoPRF0AreNoJxQltAqMSGUmZt/EKqYkgnB4Y + Yyow== +MIME-Version: 1.0 +X-Received: by 10.68.238.163 with SMTP id vl3mr8255309pbc.177.1364052281847; + Sat, 23 Mar 2013 08:24:41 -0700 (PDT) +Received: by 10.68.146.133 with HTTP; Sat, 23 Mar 2013 08:24:41 -0700 (PDT) +X-Originating-IP: [99.43.178.25] +In-Reply-To: <201303231452.23042.luke@dashjr.org> +References: <CA+8xBpe9D=poPyJ=soGdN3sovqdmvyGGij6FM8PHYGUB5aUkzQ@mail.gmail.com> + <1364035346.19716.YahooMailNeo@web161601.mail.bf1.yahoo.com> + <201303231452.23042.luke@dashjr.org> +Date: Sat, 23 Mar 2013 11:24:41 -0400 +Message-ID: <CA+8xBpfvTQ9pEygPmeSf0guOsECu6uecOG-KB=GVXtPKNo23ZQ@mail.gmail.com> +From: Jeff Garzik <jgarzik@exmulti.com> +To: Luke-Jr <luke@dashjr.org> +Content-Type: text/plain; charset=ISO-8859-1 +X-Gm-Message-State: ALoCoQka3aGDDUauPHm0ObzjEAtxLdf9ZCqLoX8cGivBfoVyT8cMEkqVnYaLBCsHr4poVR2eLugh +X-Spam-Score: 0.0 (/) +X-Spam-Report: Spam Filtering performed by mx.sourceforge.net. + See http://spamassassin.org/tag/ for more details. +X-Headers-End: 1UJQJL-0001Qm-OD +Cc: bitcoin-development@lists.sourceforge.net +Subject: Re: [Bitcoin-development] A bitcoin UDP P2P protocol extension +X-BeenThere: bitcoin-development@lists.sourceforge.net +X-Mailman-Version: 2.1.9 +Precedence: list +List-Id: <bitcoin-development.lists.sourceforge.net> +List-Unsubscribe: <https://lists.sourceforge.net/lists/listinfo/bitcoin-development>, + <mailto:bitcoin-development-request@lists.sourceforge.net?subject=unsubscribe> +List-Archive: <http://sourceforge.net/mailarchive/forum.php?forum_name=bitcoin-development> +List-Post: <mailto:bitcoin-development@lists.sourceforge.net> +List-Help: <mailto:bitcoin-development-request@lists.sourceforge.net?subject=help> +List-Subscribe: <https://lists.sourceforge.net/lists/listinfo/bitcoin-development>, + <mailto:bitcoin-development-request@lists.sourceforge.net?subject=subscribe> +X-List-Received-Date: Sat, 23 Mar 2013 15:24:49 -0000 + +On Sat, Mar 23, 2013 at 10:52 AM, Luke-Jr <luke@dashjr.org> wrote: +> On Saturday, March 23, 2013 10:42:26 AM Randy Willis wrote: +>> Introducing super-nodes with thousands of connected peers can greatly help +>> here. +> +> UDP is connectionless. +> I would hope any UDP bitcoin protocol doesn't try to emulate a connection. :/ + +It depends on the usage. Simply broadcasting a TX or INV to a remote +peer does not require a connection, clearly... but you probably want +to signal acceptance of those messages somehow. + +But other uses, like subscribing to a broadcast, does require some +notion of an association. + +In the rough draft, a parallel TCP connection with version/verack +sequence is required, and you may make use of it if a connection is +needed. + +But that is just one approach. A more robust, heavyweight UDP P2P +might be a hole-punching TCP alternative. It's up to the community +and results of experimentation. + +Bittorrent has evolved a full transfer protocol over UDP, to get +around firewalls and the like. +-- +Jeff Garzik +exMULTI, Inc. +jgarzik@exmulti.com + + |