that's up to your web server. I don't know of any that do that. There
may be some 3rd party snmp servers out there that will limit it's traps
to just port 80 (or whatever), then you could run either analog, or mrtg
on the results, but I don't know of one. Try checking out cmu's snmp
agent for linux (I think there are some options to do that).
- Chuck
Alex Lee wrote:
> Understood, thank you. Then you are saying that analog's report of actual
> usage is a pretty acurate account for data transfer, minus of course the
> overheads. Is there a way of collecting those additional overheads then?
> with additional parameters?
>
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]]On Behalf Of Chuck Pierce
> Sent: Monday, February 12, 2001 12:17 PM
> To: [EMAIL PROTECTED]
> Subject: Re: [analog-help] Help on differences for data transfer stats
>
> Alex Lee wrote:
> >
> > Hi, I am currently charting my bandwidth usage using both Analog and MRTG.
> > However I am getting results from analog that are almost half the results
> > from MRTG. For example, my last months results for January was 18gb from
> > analog, but mrtg showed 45gb. There is only the one site on this server.
> > Calculating the throughput showed that mrtg was right. I understand that
> > there will be little discrepencies, like ftp and such, but not such a huge
> > gap like that.
> >
> > I'm using apache 1.3.14 on linux 6.2
> > Analog version 3.14 with rmagic 2.02
> >
> > Any ideas?
>
> keep in mind that most of your web servers only record the amount of
> "flies bytes" transferred. You don't have any of the other overhead
> involved with the communication in there (requests, syn, htacceess,
> etc.).
>
> Is this server a regular web server or secure web server? A secure web
> server will actually do 4 times (if not a little bit more) the amount of
> traffic as the actual amount of traffic that would be caused by a normal
> web server (but your web server will not record the difference).
>
> Also, Mrtg will give the results for all traffic (including broadcast)
> for that ethernet device. It's great for network analysis, but I
> wouldn't rely on any of the info for actual usage.
>
> just my $0.02
>
> - Chuck
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