Date: 28 Nov 2001 00:22:45 EST From: "Mark Sergeant" <msergeant@snsonline.net> To: Rob Secombe <robseco@teksupport.net.au>, Rowan Crowe <rowan@sensation.net.au>, freebsd-isp@FreeBSD.ORG Cc: freebsd-stable@FreeBSD.ORG Subject: Re: Whats with this -> sendto: No buffer space available Message-ID: <200111280522.fAS5Mmj12192@xyzzy.intranet.snsonline.net> In-Reply-To: <3.0.5.32.20011128151448.038174f0@mail.secombe> References: <3C0454B6.6000102@quake.com.au> <3.0.5.32.20011128151448.038174f0@mail.secombe>
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I have the same problem and I have this option in my rc.conf. I also have 256 set for max users n 8096 for mbufs, suffice it to say the only time I have ever noticed a problem is when Telstra has issues. after Telstra comes back a ifconfig down n up combined with a stop n start of ppp fixes things fine. Cheers, Mark On Wed, 28 Nov 2001 15:14:48 +1000, Rob Secombe said: > Hi, > > I agree. I believe it is as a result of the output queue filling as a > result of the link dying. In my case our customer was using a Alcatel ADSL > modem and it was the ethernet link between the FreeBSD box and the modem > that was falling over. I suspect that the NIC was trying to negotiate > 100baseTX <full-duplex> or the like and the modem is only capable of > 10baseT/UTP. The link led on the modem goes out and the media status on the > NIC was inactive in the failed state. The problem was resolved thus: > > ifconfig_rl1="media 10baseT/UTP -mediaopt full-duplex up" > > I have a bunch of these "out there" running on different providers, > including Tel$tra, without any problems. > > Cheers > > Rob. > > At 15:51 28/11/01 +1100, Rowan Crowe wrote: > >bOn Wed, 28 Nov 2001, Kal Torak wrote: > > > >> This keeps happening... > >> > >> I have adsl running on my gateway using pppoe with userppp > >> and its internal nat enabled, also a fairly simple ipfw config > >> blocking a few ports... > >> > >> Now every so often all data stops and checking on the gateway > >> trying to send something I get the "sendto: No buffer space available" > >> error and have to reboot and everything is fine again... > >> > >> It seems to happen at random, sometimes its fine for a week, > >> sometimes only a few days and it happens... There is nothing > >> of interest logged in ppp.log or security or messages... > >> > >> What causes this buffer to fill up and not empty? Here in australia > >> telstras adsl is really crap and you often cant get more than 2 > >> hops past the peer... Im wondering if its something to do with > >> apps like bitchx trying to constantly reconnect when the network > >> is down filling up the buffer??? > > > >I see this error occasionally on a 56k modem connection. Sometimes the > >modem half dies (CD light on but not passing data), and usually drops out > >within a few minutes. If there's a lot of outbound data in this period, > >the error pops up. > > > >Presumably the error refers to an output buffer being full, in my case > >most likely because the modem has signalled it cannot take any more data, > >and ultimately packets cannot be shed from the packet queue. I haven't > >used PPPoE but I would guess it means that your client cannot reach the > >other end of the tunnel, which is effectively the same thing - output > >queue fills and overflows. > > > >Cheers. > > > > > >-- > >Rowan Crowe > >camrecord.com / camdiscover.com / Sensation Internet Services > >Melbourne, Australia > > > > > > > > > > > >To Unsubscribe: send mail to majordomo@FreeBSD.org > >with "unsubscribe freebsd-isp" in the body of the message > > > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-isp" in the body of the message > > > -- Mark Sergeant | url: http://www.snsonline.net/ Unix Systems Administrator | email: msergeant@snsonline.net disclaimer: http://www.snsonline.net/disclaimer/ | mobile: +61 4 1271 42631 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isp" in the body of the message
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