> On Thu, Jan 19, 2006 at 03:52:40PM -0000, [EMAIL PROTECTED] wrote: > j> Recently, I tried to upgrade my firewall from FreeBSD 4.8 to 6.0 and > from > j> mpd 3.17 to mpd 3.18. > j> > j> Initially, everything works. However, after a few hours (4 to 5) users > j> start complaining about slow connection speeds, and eventually they are > j> not able to connect to the Exchange server, or network drives shared > over > j> the WAN at all. If I put the FreeBSD 4.8 server and mpd 3.17 back on > j> line, everything will start working properly almost immediately. To > me, > j> it sounds like a memory leak, or the operating system is running out of > j> stack space. > j> > j> My network is configured in a star configuration. 5 offices connect to > j> the corporate network using an mpd to mpd configuration. The corporate > j> office has a dedicated T-1 and the other offices all have DSL > connections. > j> > j> Nothing out of the ordinary is showing up in the mpd logs. And, > nothing > j> out of the ordinary is showing up in the syslog. > j> > j> In my mpd.conf file, I have 34 pptp connections defined, and at most 10 > j> are in use at one time. The server is a Celeron processor with 128 MB > of > j> RAM. And, during peak usage times, I am showing approximately 1% usage > on > j> the processor. > j> > j> If needed, I would be happy to post my configuration files and log > files. > j> I have checked the log files around the times users report problems, > and > j> do not see anything out of the ordinary (no dropped connections, new > j> connections, missed replies, etc). And, checking the T-1 usage at the > j> time, approximately 500K of a full T-1 was in use. > j> > j> Any suggestions would be greatly appreciated. > > I guess you are using PPTP, although this word is absent in your mail. mpd > can support different protocols, so reporting what you are actually using > is important. > > The PPTP protocol has a terrible idea - windowing, that degradates tunnel > performance a lot. In FreeBSD 4.8-RELEASE ng_pptpgre(4) didn't support > windowing at all. In modern FreeBSD ng_pptpgre(4) supports windowing. In > mpd windowing is turned on by default. This is done because some modern > MS Windows versions will refuse to connect if windowing is disabled. I > think, that if you disable windowing in mpd config, your performance will > come back. > > -- > Totus tuus, Glebius. > GLEBIUS-RIPN GLEB-RIPE >
Yes, you are correct, I am using PPTP and I should have specified that in my initial e-mail. Since I am using FreeBSD with mpd at both ends of the link is preferred to disable windowing on the client side, or the server side? If possible, I would prefer to disable it on the client side since I have several Windows users who also connect to this server. Thanks for all your help. Jay _______________________________________________ freebsd-net@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "[EMAIL PROTECTED]"
