Date: Thu, 13 Dec 2001 10:34:10 -0500 From: Hug Me <hugme@hugme.org> To: freebsd-isp@freebsd.org Subject: Re: Router based on FreeBSD. Message-ID: <20011213103341.O54507@pitr.tuxinternet.com> In-Reply-To: <5.1.0.14.0.20011213093847.00aba420@postoffice.riic.at>; from hueber@riic.at on Thu, Dec 13, 2001 at 09:49:06AM %2B0100 References: <87.148e2405.2947f3f1@aol.com> <5.1.0.14.0.20011213093847.00aba420@postoffice.riic.at>
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I was having pretty much the same problem with my router... turned out the main problem was the pci controler in the motherboard couldn't handle the bandwidth. it was running on a 486-120 and I moved it up to a K6-2-400 but the big difference was the motherboard. also I have had problems when plugging 10/100 full duplex cards into anything that is only 10. my transfer rates drop to less than if I was using a modem when I put any pressure on the card. that is just what I discovered on my own netoerk. On Thu, Dec 13, 2001 at 09:49:06AM +0100, Gernot Hueber wrote: > Hi, > > You claim the 3Coms are no good choice for FBSD. I have always been very satisfied > with 3Com905B devices. > And a quick search did not reveal any major problems with the 3com cards. > > Pls, can you explain the problem in more detail or direct me to more detailed > information (how to avoid impacts with STATS ...) > > Thank you > > Gernot Hueber > > At 18:42 11.12.2001 -0500, CL1787@aol.com wrote: > >In a message dated 12/11/2001 6:57:50 AM Eastern Standard Time, tdn@stack.ru > >writes: > > > >> I'm 99 % sure that the bottleneck is router. > >> As for other hardware, router connected to 3Com 3300 XM which is devided > >> on VLANs. > >> The most loading on two 100 Mb interfaces (backbone interfaces). Network > >> becomes slow when their loading 4 MB/s on each other (about 5500 > >> interrupts on each, is not this very high), other interfaces have stable > >> loading and CPU loading is about 50-30 % idle. > >> > >> As for routing table: > >> root[xxx]:/etc/> netstat -rn | wc -l > >> 638 > >> > >> > Tolpanov, Dmitry wrote: > >> > > > >> > > > >> > >I've got a very complex problem so every advice is appreciated. > >> > >I've got a router on 4.3-STABLE FreeBSD. It's got hardware > >> > (in short): > >> > >- Intel Pentium III 500 MHz > >> > >- NIC 3Com 10/100 in 100baseTX <full-duplex> > >> > >- NIC 3Com 10/100 in 100baseTX <full-duplex> > >> > >- NIC 3Com 10/100 in 100baseTX <full-duplex> > >> > >- NIC 3Com 900 Combo 10baseT/UTP <full-duplex> > >> > >- NIC 3Com 900 Combo 10baseT/UTP <full-duplex> > >> > > > >First of all, 3coms are the wrong choice in FreeBSD. One issue is that you > >have 5 devices on your bus (which will seriously slow the bus by creating bus > >contention), and there are also serious problems with the 3COM driver. At > >minimum you'll want to disable "stats"...with a lot of traffic the stats > >counters overflow regularly and cause serious overhead. At high speeds it > >will actually take over the machine...comment out the line that sets > >XL_CMD_STATS_ENABLE and see what happens. You dont need them...STATS is a > >"neat" feature that has no place in a serious router. > > > >Also, the 900 is less efficient than the 900B...but I dont know by how much. > > > >DB > > > >To Unsubscribe: send mail to majordomo@FreeBSD.org > >with "unsubscribe freebsd-isp" in the body of the message > > Dipl.-Ing. Gernot Hueber > Institut für Integrierte Schaltungen > Freistädter Strasse 315/2 > A-4040 Linz > > Tel: +43 732 2468-7118, Fax: -7126 > E-mail: hueber@riic.at > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-isp" in the body of the message -- ************************************************* hugme hugme@hugme.org http://www.hugme.org http://www.atlantacon.org PGP Public key: http://www.hugme.org/mykey.pgp To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isp" in the body of the message
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