From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on inbox.vuxu.org X-Spam-Level: X-Spam-Status: No, score=-0.8 required=5.0 tests=DKIM_INVALID,DKIM_SIGNED, MAILING_LIST_MULTI,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.4 Received: (qmail 7811 invoked from network); 14 Jul 2022 20:40:16 -0000 Received: from minnie.tuhs.org (50.116.15.146) by inbox.vuxu.org with ESMTPUTF8; 14 Jul 2022 20:40:16 -0000 Received: from minnie.tuhs.org (localhost [IPv6:::1]) by minnie.tuhs.org (Postfix) with ESMTP id A330F406D5; Fri, 15 Jul 2022 06:39:52 +1000 (AEST) Received: from wout4-smtp.messagingengine.com (wout4-smtp.messagingengine.com [64.147.123.20]) by minnie.tuhs.org (Postfix) with ESMTPS id 3B95E406D4 for ; Fri, 15 Jul 2022 06:39:47 +1000 (AEST) Received: from compute5.internal (compute5.nyi.internal [10.202.2.45]) by mailout.west.internal (Postfix) with ESMTP id 87EC7320090B; Thu, 14 Jul 2022 16:39:45 -0400 (EDT) Received: from mailfrontend1 ([10.202.2.162]) by compute5.internal (MEProxy); Thu, 14 Jul 2022 16:39:45 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ronnatalie.com; h=cc:content-transfer-encoding:content-type:date:date:from:from :in-reply-to:in-reply-to:message-id:mime-version:references :reply-to:reply-to:sender:subject:subject:to:to; s=fm2; t= 1657831185; x=1657917585; bh=4ZVINHZ5o0m7LRljBPIYDqC5vxbUsQUpjmP r4kVbXs8=; b=CNhaMYotgTKaNL/c4+36/UXFYqYEFbNUpAoH1Iheim72M0xAGbd bjfO8neVWZ4yCJC15+nBZmzZH1zQPmqUTrkOxY1Kaz14mDldbhp8mfs4W6F8xAe6 yDa3CU/IzpV92rDhcogQvRZn2k6Y6bQw/+xYkAtQDRWQ0kchItnMfdjTuddQKEUI u5zVtEq3VWbP4FKT3V18CYoDqR9AtR7GC6/nlmb6CNs5RKPrcYuAFYYL1xG3i5oP FHAJHLl+XdAgzgzSYvEtfjr5XmUKHgxhvhvYQH9xMi4XocvXKzk0P/Szp2dhp8Xp Le2feIvEmV3oCr9qRWKk3coIn5Ikj2jEulg== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-transfer-encoding:content-type :date:date:feedback-id:feedback-id:from:from:in-reply-to :in-reply-to:message-id:mime-version:references:reply-to :reply-to:sender:subject:subject:to:to:x-me-proxy:x-me-proxy :x-me-sender:x-me-sender:x-sasl-enc; s=fm3; t=1657831185; x= 1657917585; bh=4ZVINHZ5o0m7LRljBPIYDqC5vxbUsQUpjmPr4kVbXs8=; b=J Og6LmBSZ2U5Qt6Y7UMkxwqR6G3XgQO4LuI9ecQwMGtObhmsvS35UgXIoM6Xl2rwU mdktKBwJduRlfneXhb68UJ2EF13e40a+IBxxXilT6waeivAr9qB3hsDByDr9+8oX o+8ThMZo0a7kEZ3dZT/oWBE2IcYh7WeLT/H5liDIARrOlMR/u5sylY6L7tRp8l/Z LZDc99X6FVRhQo7p1wdxL1rMJH6CMk23DDg5+ZddhnfZhymlAq2zzyR3GX3LIIUp Qmg9PmWmn+P5H0aDlGMaSO8YeG2i1Kx+FBoDDUjAvb8zW63I++cGcdTfngeriVH6 X1a/9ABLCPukbg5qpV9og== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedvfedrudejledgudehgecutefuodetggdotefrod ftvfcurfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfgh necuuegrihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmd enucfjughrpefhvffufffkjghfrhgfgggtgfesthhqredttderjeenucfhrhhomhepfdft ohhnucfprghtrghlihgvfdcuoehrohhnsehrohhnnhgrthgrlhhivgdrtghomheqnecugg ftrfgrthhtvghrnhepffduteevteffueethfelledvtdefhfekhfdvgfehudejveeijeek vddvtdejveegnecuvehluhhsthgvrhfuihiivgeptdenucfrrghrrghmpehmrghilhhfrh homheprhhonhesrhhonhhnrghtrghlihgvrdgtohhm X-ME-Proxy: Feedback-ID: iaba146ad:Fastmail Received: by mail.messagingengine.com (Postfix) with ESMTPA; Thu, 14 Jul 2022 16:39:44 -0400 (EDT) From: "Ron Natalie" To: "Tom Teixeira" , tuhs@tuhs.org Date: Thu, 14 Jul 2022 20:39:44 +0000 Message-Id: In-Reply-To: References: <7wmtdcx870.fsf@junk.nocrew.org> <0ba593c4-db60-1bc8-2531-c64e4937f285@jfloren.net> <7wa69by6h7.fsf@junk.nocrew.org> User-Agent: eM_Client/9.0.1755.0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: quoted-printable Message-ID-Hash: 5ULZTMBFFDC6QUOPQQLGRODXS3I54GB7 X-Message-ID-Hash: 5ULZTMBFFDC6QUOPQQLGRODXS3I54GB7 X-MailFrom: ron@ronnatalie.com X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; header-match-tuhs.tuhs.org-0; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header X-Mailman-Version: 3.3.6b1 Precedence: list Reply-To: Ron Natalie Subject: [TUHS] Re: Unix V8 Chaosnet, any takers? List-Id: The Unix Heritage Society mailing list Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: It can do subnets, but it can=E2=80=99t deal with long haul (over the great= er=20 internet) time delays. ------ Original Message ------ >From "Tom Teixeira" To tuhs@tuhs.org Date 7/14/2022 4:32:55 PM Subject [TUHS] Re: Unix V8 Chaosnet, any takers? >On 7/14/22 2:19 PM, Ron Natalie wrote: >>Note, I don=E2=80=99t know what you=E2=80=99re planning, but Chaos couldn= =E2=80=99t take any propagation delay. It=E2=80=99s really limited to a L= AN implementation as originally designed. >> >It definitely had subnet routing, and as I recall, the KL10's and other ma= chines with front end I/O processors generally used chaosnet routing betwee= n the host itself and the rest of the network. i.e. the I/O processor was o= n one subnet, the host on a second subnet and the rest of the "LAN" was on= the other side of the I/O processor. My recollection is that unlike an IP r= outer, a Chaosnet node had only one address, and routing tables determined= which device to send the data on. > >And LCS definitely had multiple coax cable runs with each run a subnet wit= h routing between. But with a maximum of 256 subnets, routing was much simp= ler. > >I wonder how much benefit is available from using network switches rather= than collision detection and retransmit, though the virtual token was suppo= sed to reduce collisions somewhat. >