Date: Wed, 23 Feb 2000 09:26:24 -0500 From: Matt Heckaman <matt@ARPA.MAIL.NET> To: "Miguel A.L. Paraz" <map@iphil.net> Cc: freebsd-isp@freebsd.org Subject: Re: Monitoring the cause of Reboots Message-ID: <Pine.BSF.4.21.0002230924080.622-100000@epsilon.lucida.qc.ca> In-Reply-To: <20000223094559.A22180@tirad.internal.iphil.net>
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Personally, I don't feel safe with this setting anything under 16,384 on a T1 link, and 32,768 or greater on 10Mbit+ - Denial of service attacks can cause these to be eaten VERY rapidly, the more bandwidth you have, the more it eats away. Since I don't want a machien panicing during a dos attack on top of all the other lovely problems, I set this very very high. Perhaps I'm giving it overkill, but I've never had a machine panic from it again, so I'm happy with the result. Matt -- Matt Heckaman [matt@arpa.mail.net|matt@relic.net] [Please do not send me] !Powered by FreeBSD/x86! [http://www.freebsd.org] [any SPAM (UCE) e-mail] On Tue, 22 Feb 2000, Miguel A.L. Paraz wrote: : Date: Tue, 22 Feb 2000 20:45:59 -0500 : From: Miguel A.L. Paraz <map@iphil.net> : To: Stuart Henderson <sthen@naiad.eclipse.net.uk> : Cc: et-users@etinc.com, freebsd-isp@freebsd.org : Subject: Re: Monitoring the cause of Reboots : : On Tue, Feb 22, 2000 at 01:37:37PM +0000, Stuart Henderson wrote: : > Are you using fxp0 and ncr0 on a BX motherboard? : : fxp0 only, not ncr0. using plain IDE, this is a router with the ETINC : HSSI card. : : I think I found it! Found these: : : kernel: Out of mbuf clusters - adjust NMBCLUSTERS or increase maxusers! : kernel: Warning: No memory for Receive : : and I'm now recompiling with NMBCLUSTERS=4096 : : I was tossing in ~2 Mbps through this card until a few days ago, and it : crashed every 3 days or so. The load went up to ~4 Mbps and it crashes : daily. Hope this does it... : : ---m : : : -- : Miguel "Migs" A.L. Paraz http://www.iphil.net : Coach + Technologist + Organizer IPhil Communications Network, Inc. : 5/F 116 Herrera St., Legaspi Village, Makati City, Philippines +63-2-750-2288 : : : : : : 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
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