Date: Thu, 04 Apr 2002 17:47:33 +0200 From: alex <ml-freebsd-isp@phobgate.de> To: dec2 <dec2@inetu.net> Cc: freebsd-isp@freebsd.org Subject: Re: Actual bandwidth used vs. statistics reports - customer explaination Message-ID: <28542772.1017942453@[192.168.2.94]> In-Reply-To: <Pine.BSF.4.10.10204031233500.4892-100000@norad.inetu.net> References: <Pine.BSF.4.10.10204031233500.4892-100000@norad.inetu.net>
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Hi, ipfw also includes IP/TCP/UDP header, ICMP packages. webalizer does not. webalizer just counts the transmitted data from server->client, no recieved headers. no http post operations. several response codes of webserver (all != 200) are also not included. maybe explains some extra % of the real traffic. alex --On Mittwoch, 3. April 2002 12:35 -0500 dec2 <dec2@inetu.net> wrote: > > Blake, > > It could be. I'm guessing its a combination of excluded URL's (Webalizer > does by default). It also excludes Media files (duh!) and protocol > headers, which take at least 15% off the top - maybe more depending. > > We have updated webalizer config files to include audio and media files.. > > It could also be e-mail and FTP, but Webalizer is only accounting for 50% > of the bandwidth being measured at the IP-level, so the customer is asking > for more justification. :-) > > -Dev > > On Wed, 3 Apr 2002, Blake Crosby wrote: > >> Could it also be FTP/mail traffic? >> >> I think also web logs dont take into account the headers that the web >> server sends as well. Although not a lot of data, I can see it adding up. >> >> Blake >> >> At 11:50 AM 4/3/2002 -0500, dec2 wrote: >> >> > I had a quick question for ISP's and Web Hosting Companies out there. >> > >> > We give our hosting customers free access to web reports (Through say >> > webalizer). >> > >> > We measure customer bandwidth usage for unique IP address customers >> > through IPFW - which counts all data for their IP address. >> > >> > Does anyone have good ways to explain to customers why actual bandwidth >> > used can vary greatly from web reports? Sometimes with reports only >> > reporting on 50% of actual bandwidth used? >> > >> > We have tried to explain overhead, real audio files being excluded, >> > etc. However - I think at this point - it might be beneficial to point >> > the customer to 3rd party information. >> > >> > Anyone able to offer any help? >> > >> > Thanks in advance... >> > >> > -Dev >> > >> > >> > 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 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isp" in the body of the message
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