Date: Tue, 16 Dec 2003 04:39:42 -0800 (PST) From: Julian Elischer <julian@elischer.org> To: Andriy Korud <akorud@polynet.lviv.ua> Cc: freebsd-net@freebsd.org Subject: Re: Large scale NAT problems Message-ID: <Pine.BSF.4.21.0312160439180.39201-100000@InterJet.elischer.org> In-Reply-To: <1071564482.3fdec6c2ac5fb@isp.polynet.lviv.ua>
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did you try natd? (for comparison) On Tue, 16 Dec 2003, Andriy Korud wrote: > Hi, > I'm tring to make NAT on FreeBSD box for 2500 clients on 35Mbit uplink. > Box is Xeon 2.8GHz, 1G RAM, 2xIntel PRO/1000 (em) adapters. > FreeBSD 4.9-STABLE, kernel is configured for single processor (HT not used), > with DEVICE_POLLING and HZ=2000, LARGE_NAT defined. > Nat was done using ipnat, no additional filtering. > > The problem is that when traffic grows to 10Mbit and number of active NAT > sessions reach 70000, CPU usage exponentialy grows and system spends all CPU > time in interrupts handling. > The system become completely unreponsible and unsable and only hard reset is the > solution. > > And worse thing is that Linux on Cel/800 with SOHO cards do that NATing with 5% > CPU load without any problem :-(. > > Maybe I shoud try natd? May this help? > Any suggestions? > > thanks in advance, > > Andriy Korud > > > _______________________________________________ > freebsd-net@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-net > To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org" >
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