Date: Tue, 28 Nov 2006 18:09:48 +0800 From: =?UTF-8?Q?=E5=BC=A0=E9=9F=A1=E6=AD=A6?= <weiwu@sdf.lonestar.org> To: freebsd-net@freebsd.org Subject: Re: wired PPP problem: ppp connection fail, slow down on FreeBSD but fine on Windows Message-ID: <1164708588.11743.23.camel@joe.realss> In-Reply-To: <1164708313.11743.19.camel@joe.realss> References: <1164708313.11743.19.camel@joe.realss>
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在 2006-11-28二的 18:05 +0800，张韡武写道： > The FreeBSD gateway machine has one end connect to ADSL modem through > pppoe, the other connects to LAN and act as NAT gateway. > > PPP connection can be established correctly, then after 5 hour or 10 > hour, connection speed become very slow or (more frequently) simply > cannot connect (a.k.a. browsing web pages time out). Then, ping from LAN > client hosts to external network would simply timeout, ping from NAT > gateway to 10.10.10.5 (that's the other end of the PPPOE connection) > keep getting this message: > ping: send to: No buffer space available > At the same time, top(1) shows 80~95 CPU resource is taken by > 'interrupt'. > > stop ppp by "/etc/rc.d/ppp stop" and re-start this process usually will > not get re-connected (/var/log/ppp.log is like 'carrier -> stop -> > redial', that is we don't reach the step of login). Reboot computer > usually also do not help. After fighting the problem for an hour or so, > suddenly it (pppoe) become working again. I forgot to mention in such case (connection is slow but not completely broken), top(1) often shows aroudn 20% to 30% CPU resource is taken by 'interrupt', 20% to 30% by ppp and around 50% free. Such situation won't last long before connection become completely useless.
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