Date: Thu, 13 Dec 2001 10:28:59 +0700 From: "Tolpanov, Dmitry" <tdn@stack.ru> To: "Forrest W. Christian" <forrestc@imach.com> Cc: <freebsd-isp@FreeBSD.ORG> Subject: RE: Router based on FreeBSD. Message-ID: <CA28026327658B478F964AD08A46D4130560CF@exch2k.stack.firm>
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Duplex modes are the same on NICs and switch ports. As for PING time I can't definitly talk about it. It seems to me that PING time is suitable (but Netsaint send PING ALERT and PING RECOVERY). But transfer speed is very slow in periods of high loading. I'm in confusion: PING time seems to be good but something strange is happening. One the one hand 4 MB/s is not so high loading. On the other hand 3 100 Mb NICs and 2 10 Mb NICs on station may be too many becausee of hardware limits (for exampl=D5, PCI Bus). So the MAIN questions: - What utilities can I use for troubleshooting? (such as systat) - What counters shoud I examine and what does their maximums? When I will now answers I can find bottlenecks? Thanks to allof you for your help. Dmitry. >=20 > One more thing. >=20 > Are you sure you have everything set to the same duplex=20 > setting? This can > also cause the problem. >=20 > On Tue, 11 Dec 2001, Forrest W. Christian wrote: >=20 > > Date: Tue, 11 Dec 2001 05:17:28 -0700 (MST) > > From: Forrest W. Christian <forrestc@imach.com> > > To: "Tolpanov, Dmitry" <tdn@stack.ru> > > Cc: Kal Torak <kaltorak@quake.com.au>, freebsd-isp@FreeBSD.ORG > > Subject: RE: Router based on FreeBSD. > >=20 > > What is the PING TIME Across this router? > >=20 > > I too am skeptical. I can push 4MB/s through a 486/66 box=20 > with ISA cards > > on occasion if everything is right. > >=20 > > On Tue, 11 Dec 2001, Tolpanov, Dmitry wrote: > >=20 > > > Date: Tue, 11 Dec 2001 18:57:29 +0700 > > > From: "Tolpanov, Dmitry" <tdn@stack.ru> > > > To: Kal Torak <kaltorak@quake.com.au> > > > Cc: freebsd-isp@FreeBSD.ORG > > > Subject: RE: Router based on FreeBSD. > > >=20 > > > I'm 99 % sure that the bottleneck is router. > > > As for other hardware, router connected to 3Com 3300 XM=20 > which is devided > > > on VLANs. > > > The most loading on two 100 Mb interfaces (backbone=20 > interfaces). Network > > > becomes slow when their loading 4 MB/s on each other (about 5500 > > > interrupts on each, is not this very high), other=20 > interfaces have stable > > > loading and CPU loading is about 50-30 % idle. > > >=20 > > > As for routing table: > > > root[xxx]:/etc/> netstat -rn | wc -l > > > 638 > > >=20 > > > > Tolpanov, Dmitry wrote: > > > > >=20 > > > > >=20 > > > > >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=20 > > > > (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> > > > > > > > > > >Sometimes through this router network works slowly and=20 > it is natural > > > > >right thing. Therefore we are going to split router on two. > > > >=20 > > > >=20 > > > > Hmmm when you say slow, how slow are you talking??? And=20 > what kind > > > > of load does this router get? I mean its obviously got=20 > at least 5 > > > > subnets or more, but what kind of loads?? > > > >=20 > > > > When its going slowly what kind of ping times do you=20 > get accross it?? > > > >=20 > > > > Also are you sure its the router thats the bottle neck=20 > here? What kind > > > > of network is it attached to? Hubs, Switches, what=20 > brands are they?? > > > >=20 > > > > The reason I ask is because a P3 500 is a lot faster=20 > than most of the > > > > processors you would find in hardware routers, I dont=20 > see how it could > > > > be noticably slow.. But I dont really know how much traffic=20 > > > > your getting... > > > >=20 > > > >=20 > > > >=20 > > >=20 > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > > > with "unsubscribe freebsd-isp" in the body of the message > > >=20 > >=20 > > - Forrest W. Christian (forrestc@imach.com) AC7DE > >=20 > ---------------------------------------------------------------------- > > The Innovation Machine Ltd. =20 > P.O. Box 5749 > > http://www.imach.com/ =20 > Helena, MT 59604 > > Home of PacketFlux Technogies and BackupDNS.com =20 > (406)-442-6648 > >=20 > ---------------------------------------------------------------------- > > Protect your personal freedoms - visit http://www.lp.org/ > >=20 > >=20 > > To Unsubscribe: send mail to majordomo@FreeBSD.org > > with "unsubscribe freebsd-isp" in the body of the message > >=20 >=20 > - Forrest W. Christian (forrestc@imach.com) AC7DE > ---------------------------------------------------------------------- > The Innovation Machine Ltd. P.O. Box 5749 > http://www.imach.com/ Helena, MT 59604 > Home of PacketFlux Technogies and BackupDNS.com (406)-442-6648 > ---------------------------------------------------------------------- > Protect your personal freedoms - visit http://www.lp.org/ >=20 >=20 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isp" in the body of the message
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