[mrtg] Re: Proposal: "Passive" or "Serverized" MRTG.

[Alex van den Bogaerdt]

Paul C. Williamson wrote:

> Tobias Oetiker <oetiker at ee.ethz.ch> 02/16/01 16:21 PM
>> 
>> How about this approach:
>> 
>> I guess it would be possible to have an asyncronous mrtg with
>> a target syntax like this:
>> 
>> ListenPort: port
>> Target[dddd]: remote.host.com
>> 
>> mrtg would now listen on <port> for incoming data.
>> 
>> cheers
>> tobi

> That would be cool.  So mrtg would now have clients that run on Netware,
> NT, unix, whatever?  And those boxes would collect data from routers
> and send it on to the "host" mrtg server?

The clients could ofcourse also collect data from their own system.
This would create the possibility to have a lightweight data collector 
on systems that should not allow incoming connections on the SNMP port
but that should also not have MRTG running on it for security and/or
performance reasons.

And, if I may also suggest something, what about:

   ListenTo: remotehost.domain:port
   SendTo: remotehost.domain:port
   [...]
   Target[importantrouter]: etcetera
   Options[importantrouter]: listen,forward,<whatever>
   Target[localthingy]: etcetera
   Options[localthingy]: <whatever but not forward>

to send such updates from MRTG itself. That would allow for a system
where two (or more!) MRTG boxes would be virtually in sync and thus
it would be possible to have a redundant MRTG solution...
Just don't forward incoming remote updates to prevent looping.

Or, another possibilty with the same option set: Create a distributed
environment where you can have one MRTG box on-site, this one only
polls local devices and without having to poll a device twice you can
send the data to a centralized MRTG box containing data for all of
the more important devices.

cheers,
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