[132362] in North American Network Operators' Group
Re: Network management software with high detailed traffic report
daemon@ATHENA.MIT.EDU (Sergey Voropaev)
Mon Nov 22 05:01:19 2010
In-Reply-To: <20101122.104658.41721102.sthaug@nethelp.no>
Date: Mon, 22 Nov 2010 13:00:50 +0300
From: Sergey Voropaev <serge.devorop@gmail.com>
To: sthaug@nethelp.no
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
Steinar,
I'm sure that router updates its counter more often than 5 seconds.
On 22 November 2010 12:46, <sthaug@nethelp.no> wrote:
> > Does any one know the NMS (network management software) which can do the
> > fallowing:
> >
> > 1. Monitor on Cisco Routers/Switches interface utilization every 5-10
> > seconds and send e-mail alarm when utilization low or high of predefined
> > thresholds.
> > 2. Collect net-flow statistics (at least src/dst) with granularity of
> 5-10-
> > seconds.
> >
> > The main idea is to have detailed monitoring of the external links and to
> be
> > able to know why (by what traffic type) and when link was highly
> utilized.
>
> Your requirements are somewhat unrealistic. Even if your NMS can fetch
> SNMP counters / Netflow info every 5-10 seconds, you have no guarantee
> that the router *updates* the counters / Netflow info this often.
>
> Talk to your router vendor first.
>
> Steinar Haug, Nethelp consulting, sthaug@nethelp.no
>
