From owner-freebsd-isp Sun Nov 17 21:42:42 1996 Return-Path: owner-isp Received: (from root@localhost) by freefall.freebsd.org (8.7.5/8.7.3) id VAA12677 for isp-outgoing; Sun, 17 Nov 1996 21:42:42 -0800 (PST) Received: from brasil.moneng.mei.com (brasil.moneng.mei.com [151.186.109.160]) by freefall.freebsd.org (8.7.5/8.7.3) with ESMTP id VAA12657 for ; Sun, 17 Nov 1996 21:42:25 -0800 (PST) Received: (from jgreco@localhost) by brasil.moneng.mei.com (8.7.Beta.1/8.7.Beta.1) id XAA01714; Sun, 17 Nov 1996 23:41:20 -0600 From: Joe Greco Message-Id: <199611180541.XAA01714@brasil.moneng.mei.com> Subject: Re: changed to: Frac T3? To: dennis@etinc.com (dennis) Date: Sun, 17 Nov 1996 23:41:18 -0600 (CST) Cc: isp@freebsd.org In-Reply-To: <199611180207.VAA24485@etinc.com> from "dennis" at Nov 17, 96 09:07:01 pm X-Mailer: ELM [version 2.4 PL24] Content-Type: text Sender: owner-isp@freebsd.org X-Loop: FreeBSD.org Precedence: bulk > J. Greco writes... > > > >No, I have a bad habit of routing on low end equipment... > > > >But I agree... if a P100 can do 5000pps, what can a PP200 do :-) > > Perhaps if Joe would describe this test it would be a good start. I did, briefly, already. System: ASUS P/I-P55T2P4, P100 CPU, 16MB RAM, Znyx 314 quad DE21040 ethernet, NE2000 ethernet. Normal traffic load: 400pps. trantor% netstat -I ed0 -b 10 | cut -c61-120 input (Total) output packets errs bytes packets errs bytes colls 103696372 5990 3192031736 104078666 0 3144425590 260844 3438 0 1349683 3443 0 1347715 94 3945 0 1468394 3948 0 1466061 118 3344 0 1234913 3352 0 1233600 95 3478 0 1264837 3483 0 1262795 152 4872 0 1859850 4877 0 1857370 178 3469 0 1277983 3473 0 1275461 145 3649 0 1417299 3653 0 1415398 223 3055 0 1176986 3061 0 1175475 177 4307 0 1678561 4311 0 1676535 188 5142 0 2138517 5147 0 2135524 122 Client 1: ping from an ASUS P100/DE21041 to an ASUS SP3G/DE21041 traversing two of trantor's 'de' interfaces. hummin# ping -f 206.55.64.254 (now back to trantor) 4764 0 1627137 4769 0 1624997 129 16846 0 2849899 16853 0 2847445 507 21053 0 3050225 21062 0 3048870 574 21920 0 3340778 21926 0 3337597 880 21654 0 3087022 21658 0 3085220 659 Client 2: add a ping from an ASUS SP3G to an ASUS P100/DE21041, same machines, other direction. tazenda# ping -f 204.95.172.243 (now back to trantor) 21525 0 3219253 21530 0 3217139 790 20864 0 2902915 20869 0 2900088 604 32442 0 4057497 32447 0 4055258 1664 34969 0 4610889 34974 0 4608259 2409 34630 0 4362398 34631 0 4360598 2072 36529 0 4495033 36537 0 4493280 2285 Ummm.. collisions are getting high. Unfortunately I do not have a lot more in terms of "fast machines" to hammer on this... right now I can squeeze it up to about 3900pps, with about 48% idle CPU, but also running some traffic through the NE2000 interface to get some other "fast" machines involved. 39173 0 4998716 39178 0 4996554 2666 38726 0 5052015 38730 0 5050544 2791 39024 0 5114201 39031 0 5111263 2873 40068 0 5043406 40073 0 5040965 2736 41134 0 5092456 41143 0 5089235 2677 39956 0 5046334 39961 0 5044636 2608 I would have to go set up a machine or two in order to push past this. However, considering that the NE2000 was contributing 600pps to the above numbers, I am assuming that a lot of the CPU was getting chewed by it. I am sorry I can't do any faster right now :-) This is a production network and I just don't have the hardware online to try to beat on a router right now. > Anyone have a feel for the avg packet size over a typical backbone > link? A T3 with an avg packet size of 500 bytes is 21000pps full > duplex...I suspect the ave packet size may be smaller with lots > of dialup traffic..... I tend to see an average of about 350 bytes. ... JG