Streaming, real time MRTG solution?

[Ted Mittelstaedt]

You can query snmp data as fast as the snmp manager on the
device your querying will spit it back to you.  And you can
redraw the mrtg graph as fast as the hardware can run the
computations to redraw the pretty graphics.  However there
are practical limits.  What would you rather have the CPU
in your hub/switch/router do - run the snmp manager or
move packets from one interface to another?  most switches
and routers I've worked with don't have the CPU power to run
the snmp manager at the frequency that you want to have to
make it look 'real time' and still do the job they are supposed
to be doing.

real time output is an illusion here.

Ted

> -----Original Message-----
> From: Matt Juszczak [mailto:matt at atopia.net]
> Sent: Tuesday, December 28, 2004 5:11 AM
> To: Ted Mittelstaedt
> Cc: freebsd-questions at freebsd.org
> Subject: Re: Streaming, real time MRTG solution?
>
>
> That's why I put real time in double quotes.  What I'm asking for is
> output of the current readings from snmp, much like the SVG viewer does
> in m0n0wall.  Even if the data was a few seconds delayed...
>
> -Matt
>
> Ted Mittelstaedt wrote:
>
> >Hmm, perhaps this will help:
> >
> >
> >A student one day came to a Zen master and said "Master, I want to
> >build the shortest road to Miyako, how should it be built"
> >
> >"The shortest road to Miyako is the straightest" replied the
> >master.
> >
> >So the student built a road to Miyako.  When it was done he went
> >back to the master in despair and said "Master, I cannot tell if
> >the road I built is straight"
> >
> >The master replied "Climb to the top floor of this house and look"
> >
> >So, the student did so and when he was done he went back to the master
> >in despair and said "Master, I can see it better but I still cannot
> >tell if the road I built is straight"
> >
> >The master replied "Build a tall tower and climb to the top and look"
> >
> >So, the student did so and when he was done he went back to the
> >master in despair and said "Master, I can see it better but I still
> >cannot tell if the road I built is straight"
> >
> >The master replied "Build the tallest tower possible and climb to the top
> >and look"
> >
> >So, the student did so and when he was done he went back to the
> >master in despair and said "Master, I can see it better but I still
> >cannot tell if the road I built is straight"
> >
> >The master replied "climb to the top of that hill and look"
> >
> >So, the student did so and when he was done he went back to the
> >master in despair and said "Master, I can see it better but I still
> >cannot tell if the road I built is straight"
> >
> >The master replied "climb to the top of that tall mountain and look"
> >
> >So, the student did so and when he was done he went back to the
> >master in despair and said "Master, I can see it better but I still
> >cannot tell if the road I built is straight"
> >
> >The master replied "climb to the top of the tallest mountain in
> >the world and look"
> >
> >So, the student did so and when he was done he went back to the
> >master in despair and said "Master, I can see it better but I still
> >cannot tell if the road I built is straight.  I can't climb any
> >higher I will have to grow wings and fly to go higher"
> >
> >The master replied "you are not a bird"
> >
> >At that moment, the student was enlightened.
> >
> >
> >
> >How many measurements are in 'real time'?
> >
> >Ted
> >
> >
> >
> >
> >>-----Original Message-----
> >>From: owner-freebsd-questions at freebsd.org
> >>[mailto:owner-freebsd-questions at freebsd.org]On Behalf Of Matt Juszczak
> >>Sent: Monday, December 27, 2004 9:06 PM
> >>To: freebsd-questions at freebsd.org
> >>Subject: Streaming, real time MRTG solution?
> >>
> >>
> >>Hello all,
> >>
> >>I've seen the Adobe SVG viewer work with traffic stats to show
> >>real time traffic statistics, such as the one found in m0n0wall.
> >>Does anyone know of a real time, web based software package that
> >>can communicate with SNMP (much like MRTG does), except it shows
> >>"real time" data instead of 5 minute averages?  Possibly a self
> >>moving graph so the page wouldn't have to be reloaded?
> >>
> >>Thanks for any help anyone can provide,
> >>
> >>-Matt
> >>
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> >>
> >>
> >
> >
> >!DSPAM:41d11c51873801468516577!
> >
> >
>
>