From owner-freebsd-net@FreeBSD.ORG Sun Jun 15 19:23:13 2008 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id EEB9C1065675 for ; Sun, 15 Jun 2008 19:23:13 +0000 (UTC) (envelope-from josh.carroll@gmail.com) Received: from yw-out-2324.google.com (yw-out-2324.google.com [74.125.46.30]) by mx1.freebsd.org (Postfix) with ESMTP id A6A068FC19 for ; Sun, 15 Jun 2008 19:23:13 +0000 (UTC) (envelope-from josh.carroll@gmail.com) Received: by yw-out-2324.google.com with SMTP id 9so2412621ywe.13 for ; Sun, 15 Jun 2008 12:23:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:message-id:date:from:reply-to :to:subject:in-reply-to:mime-version:content-type :content-transfer-encoding:content-disposition:references; bh=HXDgbal3YttXUfL2LPeCuqZwnWvuSH1cSRc95Os7WUU=; b=UX4twODqH1F94/P4NUaB/r8r71G9TQE/T334OupFMsveEzqtgeoNlUK7JUbqZLvZlQ ELwu8ULIHb1wCEB8hTW5UQW3+8wZIr+6JGx0UyuTikfIaZtdnq5AjpDj862Kwt5ds1NP NqsuwYqIA/gDSfntC/jwWvAGqulYoGflKQyc8= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:reply-to:to:subject:in-reply-to:mime-version :content-type:content-transfer-encoding:content-disposition :references; b=txSgoCRLOgF8KyGR4Ue7TgxghYyLPWkPGKI8mhJE3gtffX2CSbP9tnPjUUzrw/c8t7 4PavwBGxAwkUPEx1ULorfNqsk+6mOweRtf657IhKic1joGQmMStvgngupuSOkEWqO7GT qo2GiQape55FIsvICwB+5WPjQky6PsYJYmYGE= Received: by 10.151.158.2 with SMTP id k2mr9206545ybo.70.1213556244185; Sun, 15 Jun 2008 11:57:24 -0700 (PDT) Received: by 10.150.140.14 with HTTP; Sun, 15 Jun 2008 11:57:23 -0700 (PDT) Message-ID: <8cb6106e0806151157n1dbf3b49wf7a56e51da8c1988@mail.gmail.com> Date: Sun, 15 Jun 2008 14:57:23 -0400 From: "Josh Carroll" To: "Olivier Mueller" , freebsd-net@freebsd.org, freebsd-questions@freebsd.org In-Reply-To: <1213546323.29846.24.camel@bigapple.omnis.ch> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <1213546323.29846.24.camel@bigapple.omnis.ch> Cc: Subject: Re: mrtg peak on reboot / snmp-issue? X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: josh.carroll@gmail.com List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 15 Jun 2008 19:23:14 -0000 Sorry the blackberry is truncating your original mail, but yes I have noticed the same thing on my setup. In my case I am using a custom rrdtool perl script. While not a fix for the actual problem, my workaround has been to use a CDEF in my rrdgraph command to set the value to 0 if it exceeds a sane maximum. I'm not sure off hand if mrtg has a similar capability but you might be able to set a max value for the graph so at least it won't skew the graph and hide the rest of the data points. Another option is to use a custom script to collect the values by grabbing the data from snmp and then sanitizing them prior to outputting to the value. Regards, Josh On 6/15/08, Olivier Mueller wrote: > Hello, > > Small but curious thing on my freebsd-based systems: when a > server is rebooted, it generates a peak (or "spike"?) on the > network mrtg for all interfaces (here just before 1 am): > http://8304.ch/om/stuff/mrtg_localhost_1-day.png > > It happens with both net-snmp and ucd-snmp, with a quite standard > mrtg installation (generated by cfgmaker). > > Do you have the same "issue" on your own servers? All I can add, is > that there is not such a high traffic after a reboot, and that it > doesn't happen on similar linux-based systems. > > Regards & a nice week to you, > Olivier > > > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.org" >