[mrtg] Re: NBAR

[Keith E Johnson]

I'm running NBAR on a couple of my core routers and my internet routers.
I've been running NBAR for about a year now without any issues. I have a
couple scripts to feed the Data into MRTG if anybody is interested.


Thanx, kj

Keith Johnson 
LAN Administrator 
Amcor Sunclipse North America 
6600 Valley View Street, Buena Park, CA 90620 
Voice: 714.562.6179 Fax: 714.562.2036 
Email: keith.johnson at sunclipse.com 
-----Original Message-----
From: Trent Melcher [mailto:tmelcher at trilogytel.com] 
Sent: Thursday, February 19, 2004 7:26 AM
To: Greg.Volk at edwardjones.com; mrtg at list.ee.ethz.ch
Subject: [mrtg] Re: NBAR

Greg

I just turned on nbar(ip nbar protocol-discovery)  on all my router
interfaces,  I Im running a 2600 with 2Serial T1 interfaces and 1
FastEthernet interface,  I currently graph cpu utilization, so I will let it
run for a day and report back the cpu statistics.

Trent

-----Original Message-----
From: mrtg-bounce at list.ee.ethz.ch [mailto:mrtg-bounce at list.ee.ethz.ch]On
Behalf Of Greg.Volk at edwardjones.com
Sent: Thursday, February 19, 2004 7:21 AM
To: mrtg at list.ee.ethz.ch
Subject: [mrtg] Re: NBAR


>
> Has anybody had a play with this:
>
>
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122
t/122t15/ftpdmib.htm
>
> I have been asked to see once its implemented on our routers can MRTG
> identify protocols so traffic can be classified appropriately
> for Quality of
> Service purposes?
>
> Can anybody help at all ?
>

This is the first time I've heard of NBAR, and it's been
around since 12.0(5)XE2! I sure feel out of the loop. ;)

>From the above URL...

>>NBAR is a classification engine that recognizes a wide
>>variety of applications, including web-based and other
>>difficult-to-classify protocols that utilize dynamic TCP/UDP
>>port assignments. When an application is recognized and
>>classified by NBAR, a network can invoke services for that
>>specific application. NBAR ensures that network bandwidth
>>is used efficiently by classifying packets and then applying
>>Quality of Service (QoS) to the classified traffic.

This just sounds too cool. What is the router overhead? It's
got to be high if it's doing payload inspection. I want
to see a pre and post implementation router-cpu graph.


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