From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from korolev.univ-paris7.fr (korolev.univ-paris7.fr [IPv6:2001:660:3301:8000::1:2]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by huchra.bufferbloat.net (Postfix) with ESMTPS id 19EB520174B for ; Tue, 7 Apr 2015 13:53:06 -0700 (PDT) Received: from potemkin.univ-paris7.fr (potemkin.univ-paris7.fr [IPv6:2001:660:3301:8000::1:1]) by korolev.univ-paris7.fr (8.14.4/8.14.4/relay1/56100) with ESMTP id t37Kqw3S025439 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Tue, 7 Apr 2015 22:52:58 +0200 Received: from mailhub.math.univ-paris-diderot.fr (mailhub.math.univ-paris-diderot.fr [81.194.30.253]) by potemkin.univ-paris7.fr (8.14.4/8.14.4/relay2/56228) with ESMTP id t37Kqwd2010416; Tue, 7 Apr 2015 22:52:58 +0200 Received: from mailhub.math.univ-paris-diderot.fr (localhost [127.0.0.1]) by mailhub.math.univ-paris-diderot.fr (Postfix) with ESMTP id EC3D561F9A; Tue, 7 Apr 2015 22:52:57 +0200 (CEST) X-Virus-Scanned: amavisd-new at math.univ-paris-diderot.fr Received: from mailhub.math.univ-paris-diderot.fr ([127.0.0.1]) by mailhub.math.univ-paris-diderot.fr (mailhub.math.univ-paris-diderot.fr [127.0.0.1]) (amavisd-new, port 10023) with ESMTP id 06lf8_nA1mIV; Tue, 7 Apr 2015 22:52:56 +0200 (CEST) Received: from pirx.pps.jussieu.fr (unknown [78.194.40.74]) (Authenticated sender: jch) by mailhub.math.univ-paris-diderot.fr (Postfix) with ESMTPSA id BC7E361F9D; Tue, 7 Apr 2015 22:52:56 +0200 (CEST) Date: Tue, 07 Apr 2015 22:52:57 +0200 Message-ID: <87sicbfyom.wl-jch@pps.univ-paris-diderot.fr> From: Juliusz Chroboczek To: Dave Taht In-Reply-To: References: <87zj6jfzu1.wl-jch@pps.univ-paris-diderot.fr> User-Agent: Wanderlust/2.15.9 MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") Content-Type: text/plain; charset=US-ASCII X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.2.7 (korolev.univ-paris7.fr [IPv6:2001:660:3301:8000::1:2]); Tue, 07 Apr 2015 22:52:58 +0200 (CEST) X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.2.7 (potemkin.univ-paris7.fr [194.254.61.141]); Tue, 07 Apr 2015 22:52:58 +0200 (CEST) X-Miltered: at korolev with ID 552443AA.000 by Joe's j-chkmail (http : // j-chkmail dot ensmp dot fr)! X-Miltered: at potemkin with ID 552443AA.000 by Joe's j-chkmail (http : // j-chkmail dot ensmp dot fr)! X-j-chkmail-Enveloppe: 552443AA.000 from potemkin.univ-paris7.fr/potemkin.univ-paris7.fr/null/potemkin.univ-paris7.fr/ X-j-chkmail-Enveloppe: 552443AA.000 from mailhub.math.univ-paris-diderot.fr/mailhub.math.univ-paris-diderot.fr/null/mailhub.math.univ-paris-diderot.fr/ X-j-chkmail-Score: MSGID : 552443AA.000 on korolev.univ-paris7.fr : j-chkmail score : . : R=. U=. O=. B=0.000 -> S=0.000 X-j-chkmail-Score: MSGID : 552443AA.000 on potemkin.univ-paris7.fr : j-chkmail score : . : R=. U=. O=. B=0.000 -> S=0.000 X-j-chkmail-Status: Ham X-j-chkmail-Status: Ham Cc: Andrew McGregor , "babel-users@lists.alioth.debian.org" , "cerowrt-devel@lists.bufferbloat.net" , Felix Fietkau Subject: Re: [Cerowrt-devel] [Babel-users] more wet paint - babel unicast IHU for short-rtt path optimization X-BeenThere: cerowrt-devel@lists.bufferbloat.net X-Mailman-Version: 2.1.13 Precedence: list List-Id: Development issues regarding the cerowrt test router project List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 07 Apr 2015 20:53:35 -0000 > A timestamp is not defined for updates, presently. No. Only Hellos are timestamped, and no unicast Hello is defined currently. (IHUs carry timestamp echos.) > Do you fragment? We don't need to -- the largest possible update is on the order of 100 octets, and we assume that we can send 512 octets without fragmentation. > Would an IHU be bundled with an update? It could be, but unless it's bundled with a Hello, an IHU's timestamp echo is ignored (read Jonglez-Boutier-Chroboczek again to see why). And Hellos cannot be unicast. -- Juliusz