From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mout.gmx.net (mout.gmx.net [212.227.17.20]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "mout.gmx.net", Issuer "TeleSec ServerPass DE-1" (verified OK)) by huchra.bufferbloat.net (Postfix) with ESMTPS id 4226621FD10 for ; Thu, 20 Aug 2015 12:53:53 -0700 (PDT) Received: from hms-beagle-5.home.lan ([87.164.163.27]) by mail.gmx.com (mrgmx103) with ESMTPSA (Nemesis) id 0MGB7j-1ZVUj346Lf-00FFgz; Thu, 20 Aug 2015 21:53:51 +0200 Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Mac OS X Mail 7.3 \(1878.6\)) From: Sebastian Moeller In-Reply-To: Date: Thu, 20 Aug 2015 21:53:48 +0200 Content-Transfer-Encoding: quoted-printable Message-Id: <27031ED0-3147-4079-B375-0797CABD1921@gmx.de> References: To: Jonathan Morton X-Mailer: Apple Mail (2.1878.6) X-Provags-ID: V03:K0:wkZ1vDwKJhjuSIbzIn9uPgXPUl1d8+sgMGTX2SQpIFunmmWAuKp 5SiWegVTjhB6iQ4lLkPFjy/dq2N/Y1rANGdV6iNIOPXlYqj5DmdRRAmURWxqLbS7LgeGydI zLSNMl9uMnQfco5uVgPzZOfjGZl4ZxRQWlJ2lJ0NdgrXIhAiPkl3A997iBro5dVp3zJDWjJ jPq7vA0Z7C/ejRGgORT0g== X-UI-Out-Filterresults: notjunk:1;V01:K0:lkK0KPvLuls=:6Ernqg11MAVbcN2NAc0C6x iFrrBFTKL5tmooWrRHt2pqs1hjjF4Hdlc/p4rLUV4cJye2U20EH0gyRGkaQgQAclDLRMsJ9MZ 3kc9/fYwqVgAkupBvnu13YKE4jB3lvhWOWKcbYDxlhwC9MBjbXSC+O1Uj8n99Xjhwvf0QMTmQ iYFlqnRHe/TvzJ4AYl/GZamidOvnl4/Msfp97lxizbC4XC1xIB5JBZH7w/eCjdBQmiKMo2Rtz rLNzy1cMtQQcX0NByNEMszOxopfTy2COIvJxj7pbVq+FZGwcJwGVV8/VweNVyKSVUkeuz2SXj 80qFyWHeAOzCjuKOt7nd+Isi8GqoXcnCF5Ah/ck8crHcREUfWAIqrdRKCb+YprYX2Rc1ddZDA bg0n7+pPLMJzGNdpjTdUpq90tOGRz8s10gGge3mgKi/kJuoy6pGoBFWFeN+alge3NOE06dVRl ZaTcXgAnjjR7STU97DD1MQBXUwxhz57kAfVkXehFPAqT1aILWZKhv2q0iU+rrZltUUN7lAhZ/ EiDrIL+jvBqWgAXOxKgjEkIU5CwcOAEsIgJFTEQfQhAQkfXp37V621Y9TKOoJE8hq+UGbQBgd CttnA+E+qCflHqJNz9Rxyfnhs5ZAUVxvLX8TxPigUFQMb5gkBfz+R9DP6LsiGbNL+J9Ij+Ep1 2HLer206L8jCjhxtbNMGyFqTEWeAEXM8Dvx8vHtqbMfAdHN3c1PX9tLVSHTkvgigMuiiziQrr aMVn6z7jKxbDROBUqyFxjtlaCBGz1aQ81JEfhg== Cc: cake@lists.bufferbloat.net Subject: Re: [Cake] feature request ;) X-BeenThere: cake@lists.bufferbloat.net X-Mailman-Version: 2.1.13 Precedence: list List-Id: Cake - FQ_codel the next generation List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 20 Aug 2015 19:54:17 -0000 Hi Jonathan, On Aug 20, 2015, at 21:50 , Jonathan Morton = wrote: > That is an interesting idea. But what does data_len correspond to - = how far does it unwrap the packet? Is the difference constant between = IPv4/6, ARP, and any other protocols we might see on the wire? Inquiring minds want to know exactly this, so maybe the maximum = and the last seen value would be good for experimentation ;). But worst = case the last seen sib->len should do as one can always try to send = known size packets and the correlate the MTU with skb-len for further = inferences, no? Best Regards Sebastian >=20 > - Jonathan Morton