[j-nsp] bandwidth usage

[Dan Farrell]

Hello,

Please keep in mind that the only x-flow technology implemented in the EX-series is sFlow, and as such, behaves a little differently from cflowd or netflow (aka, by sampling rates rather than per-packet accounting).

You can always mirror traffic off the box to a netflow collector to effectuate this, however.

I've included a handy diagram-
http://dannosite.com/sites/default/files/images/ex-netflow%20hack.jpg

Right now in that diagram I have everything installed and working properly except Webview NR.



Dan

-----Original Message-----
From: juniper-nsp-bounces at puck.nether.net [mailto:juniper-nsp-bounces at puck.nether.net] On Behalf Of Chris Kawchuk
Sent: Friday, February 26, 2010 8:47 AM
To: Taqdir Singh
Cc: juniper-nsp at puck.nether.net
Subject: Re: [j-nsp] bandwidth usage

Hi Taqdir,

> 1) Could anyone please help, how we can determine what is the % of bandwidth
> usage right now on my wan interface in juniper ?


"monitor interface ge-0/0/0" will give you a 1 second snapshot. Look at the inbound/outbound deltas.

The better way to do this is to historically trend the data using cacti: http://www.cacti.net/

> 2) How can I identify top users in juniper, like we have IP accounting in
> cisco ?

The best way long-term to do this, is to make use of J-Flow (cflowd v5)

I suggest Intermapper for your netflow analysis: http://www.intermapper.com/products/intermapper-flows

For configuration of Jflow, see: http://juniper.cluepon.net/index.php/Cflowd_configuration

Regards,

- Chris.



On 2010-02-25, at 8:47 PM, Taqdir Singh wrote:

> Hi Team,
>
> 1) Could anyone please help, how we can determine what is the % of bandwidth
> usage right now on my wan interface in juniper ?
> 2) How can I identify top users in juniper, like we have IP accounting in
> cisco ?
>

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