[c-nsp] Re: RTG

Suchy Daniel ds at nix.cz
Thu Feb 23 10:35:24 EST 2006


I'm using RTG i.a. for monitoring 10Gig interfaces (with ~4G peak 
traffic today) without any problems.

> 	Speaking of RTG, could someone point me to a working combination of RTG 
> poller and RTG grapher that can actually work with interfaces faster than 
> 2.5 Gb/s :-(.
> 
> Marko.
> 
> Jon Dustin wrote:
> 
>>RTG may not be very polished, but is the only serious contender I have
>>found to specifically address the performance issue. The poller is
>>written in C, with a MySQL client built-in for speedy inserts. The
>>schema has also been designed for speed, rather than simplicity (three
>>tables for each device - InOctets, OutOctets, Errors). 
>>
>>BUT - All this attention to speed gives some flexibility in deployment,
>>as you may split apart the polling, graphing, and storage functions if
>>you wish. And the graphing function only takes CPU cycles when someone
>>wants to view (rather than Cacti/MRTG that constantly generate graphs).
>>
>>We run RTG with a 5-minute poll cycle for over 300 devices and around
>>11000 ports. The entire poll cycle takes about 30 seconds, and is
>>running on a Xeon 2.8GHz cpu with lots of other tasks to do.
>>
>>http://rtg.sourceforge.net 
>>
>>
>>Message: 7
>>Date: Thu, 23 Feb 2006 09:47:18 -0500 (EST)
>>From: Dave Temkin <dave at ordinaryworld.com>
>>Subject: RE: [c-nsp] Monitoring GUI for Cisco network
>>To: Chris Hale <chris-lists at pipelinewireless.us>
>>Cc: cisco-nsp at puck.nether.net 
>>Message-ID: <Pine.LNX.4.58.0602230946590.2534 at ordinaryworld.com>
>>Content-Type: TEXT/PLAIN; charset=US-ASCII
>>
>>>From looking at this it looks like it would take some serious
>>customization to get it to do anything other than 5 minutes, or am I
>>missing something?
>>
>>-Dave
>>
>>On Wed, 22 Feb 2006, Chris Hale wrote:
>>
>>
>>>OpenNMS can do this at whatever intervals you want.  It becomes a
>>
>>matter of
>>
>>>disk i/o and CPU if you want to poll a large network in a very short
>>
>>amount
>>
>>>of time.
>>>
>>>We use it to poll our core devices every minute, graph every 5, and
>>>poll/graph standard nodes every 5 minutes.
>>>
>>>It also is our Syslog/trap server, notification/paging system, etc.
>>>
>>>Chris
>>>
>>
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