From owner-freebsd-net@freebsd.org Fri Feb 22 20:43:21 2019 Return-Path: Delivered-To: freebsd-net@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id DAC5714FA983 for ; Fri, 22 Feb 2019 20:43:20 +0000 (UTC) (envelope-from dave.taht@gmail.com) Received: from mailman.ysv.freebsd.org (mailman.ysv.freebsd.org [IPv6:2001:1900:2254:206a::50:5]) by mx1.freebsd.org (Postfix) with ESMTP id E9D1187D75 for ; Fri, 22 Feb 2019 20:43:19 +0000 (UTC) (envelope-from dave.taht@gmail.com) Received: by mailman.ysv.freebsd.org (Postfix) id AA09A14FA982; Fri, 22 Feb 2019 20:43:19 +0000 (UTC) Delivered-To: net@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 826FC14FA981 for ; Fri, 22 Feb 2019 20:43:19 +0000 (UTC) (envelope-from dave.taht@gmail.com) Received: from mail-qt1-x82b.google.com (mail-qt1-x82b.google.com [IPv6:2607:f8b0:4864:20::82b]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 168B987D71; Fri, 22 Feb 2019 20:43:19 +0000 (UTC) (envelope-from dave.taht@gmail.com) Received: by mail-qt1-x82b.google.com with SMTP id s1so4071510qte.5; Fri, 22 Feb 2019 12:43:19 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=weUNEO3HqfEct3ozr35lr1DIUVLP6kp6fM3qWN3DyUc=; b=sGbyJCowVLWtToDwt2PAHs/gs5kloWRQYt8Cgs8MSkqTk8x1ASvPJkUij3BTTz/uj9 zjDWgfyJ+47i/5Kqvq2Y44Oiiba/0Wl7S/BeD2x4ndmxcnzkbI6f+I/RxQXM15h3G495 YR4Y2nPlw48yLw4lu+73XBEQYdsKa5DH4fAc12CnQ5oFFK96CL7pktPmtKQMqLYH1lmn lFp5DJZMwzVWay7HYq5m321gmFvJwqIDPNeXFlku7Vc4wo0jbbUf27Vqfd6lnwdQ6Bf3 gNdglZ5bokIE1C9GhBJXFeScQeRN9ijII3ouAVEiORZfwJ1Ggjw7AF1wVGfFdz3Dc6OU JL4g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=weUNEO3HqfEct3ozr35lr1DIUVLP6kp6fM3qWN3DyUc=; b=OFB9+6xDUp1mz5VjsDMUaasT3Eg+SbBig85bJ7K9Tgsxd91g5NJ7IahwpMdQ5Jlz6y fhdqyJCWMX8dTcGkxdMzhDDbiALRZzflT+qIhZv+1PTUT/6Rn6+qbmWMieDFglRerjur OQtc1omt09aiYaAq4LDM7/4iXPyYsxZHtiGveCC7on4YvDDLVi8HaYE13EPeTu0JXt5J RWIabeQfVdJfocn/sPIM3IwJ29msKPYzEuQ8d7l+mVbwzHqexdb30ciNizoR8/i/MuV8 rDFa2TKv3UwdBFqQts6IdcLm/bwUNKuLlE1yS/YUhuqbEht597N273LS9zTJAC/hCiQy EqIw== X-Gm-Message-State: AHQUAuYXz9CkuTrRHSXrBLDwzbL+iq3IdJr52lD4NxKfTmufuqJYwWxF OEqoZAyqKGxzxQItKvGdAS6QZBjQfVCiQpMlnV26BdIb X-Google-Smtp-Source: AHgI3IZDrYEAjvN2Gr080xgHm2gn2OyspZlW+kWzCRN2O4GBqP8X9edcdv4kDCq7uwFahZiuL3ipv1kR4hF8k0oYvsw= X-Received: by 2002:ac8:2d85:: with SMTP id p5mr4797650qta.136.1550868197687; Fri, 22 Feb 2019 12:43:17 -0800 (PST) MIME-Version: 1.0 References: <201902221732.x1MHWf7v026355@pdx.rh.CN85.dnsmgr.net> In-Reply-To: <201902221732.x1MHWf7v026355@pdx.rh.CN85.dnsmgr.net> From: Dave Taht Date: Fri, 22 Feb 2019 12:43:05 -0800 Message-ID: Subject: Re: 240/4 To: "Rodney W. Grimes" Cc: cem@freebsd.org, Loganaden Velvindron , net@freebsd.org, wollman@freebsd.org Content-Type: text/plain; charset="UTF-8" X-Rspamd-Queue-Id: 168B987D71 X-Spamd-Bar: ------ Authentication-Results: mx1.freebsd.org X-Spamd-Result: default: False [-6.92 / 15.00]; NEURAL_HAM_MEDIUM(-1.00)[-1.000,0]; NEURAL_HAM_LONG(-1.00)[-1.000,0]; REPLY(-4.00)[]; NEURAL_HAM_SHORT(-0.92)[-0.919,0]; TAGGED_FROM(0.00)[] X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 22 Feb 2019 20:43:21 -0000 list: I'm focused on technical feasibility only at the moment and getting ready for a "moonshot" talk at netdevconf march 21st , and I'd while I'd dearly appreciate folk trying some "interesting" patches and providing feedback (https://github.com/dtaht/ipv4-cleanup/tree/master/patches ) am totally not prepared to talk about operational or deployment issues for a while. We have a FAQ partially written... I'm painfully aware of most of the arguments... (I kind of expect those issues to dominate the conversations, and I'd rather just patch and test things for a while, and get more people to think deeply about the technical issues with *running code* at hand) yesterday... logan got ahold of our abstract ( https://netdevconf.org/0x13/session.html?talk-ipv4-unicast-expansions ) and a few hours later, figured out how to apply the ideas to the freebsd codebase and tested them, then submitted this first patch.... That's *awesome*! but I fear the headline 240/4 thing will obscure the other things like cleaning up and compressing ipv4 allocations a little bit better (like zeroth networking, and so on) in all the codebases in the world, that we're also attempting. Of interest perhaps, are the threads on the internet history mailing list. http://mailman.postel.org/pipermail/internet-history/2019-February/thread.html