[mrtg] Re: More granular look at traffic transversing WAN link ques tion

[Chan, Wilson]

Any recommendations on which open source netflow software is good to use
on Cisco routers? 


Wilson Chan

-----Original Message-----
From: Sanjay Saxena - Visibility Products
[mailto:sanjays at hclcomnet.co.in] 
Sent: Thursday, August 19, 2004 11:20 PM
To: Steve.Gingolaski at tevausa.com; mrtg at list.ee.ethz.ch
Subject: [mrtg] Re: More granular look at traffic transversing WAN link
ques tion

Hi ALL,

Actually Netflow will give a wealth of information and if it is stored
in
database then relationship between application and its user can also be
established.
The only problem with netflow data is the volume . There is another way
of
knowing application distribution over a wan link by enabling NBAR , this
is
also cisco protocol and gives TOP-n application view of the link.
Benefit is
it can be polled through snmp .

Sanjay



-----Original Message-----
From: mrtg-bounce at list.ee.ethz.ch [mailto:mrtg-bounce at list.ee.ethz.ch]On
Behalf Of Steve.Gingolaski at tevausa.com
Sent: Thursday, August 19, 2004 11:35 PM
To: mrtg at list.ee.ethz.ch
Subject: [mrtg] Re: More granular look at traffic transversing WAN link
ques tion


Greetings -

If you are using Cisco Routers, you might want to start using NetFlow
which is a free feature on all Cisco routers and a few switches.
Netflow
will enable you to see exactly what is going through the links.  You
will
need to grab a NetFlow collector.  There are some open source ones - I
have used a few and found them okay - and others are available for
purchase like the one from Crannog Software or NetQOS (do not use
Cisco's,
it is not worth the $15k).
If you are not using Cisco routers, then buy some.  No, actually some of
the other manufacturers also support NetFlow (soon to be an IEEE
standard)
while still others support a S-Flow which is more or less the same
thing.

Hope this helps.

sg

-----Original Message-----
From: mrtg-bounce at list.ee.ethz.ch [mailto:mrtg-bounce at list.ee.ethz.ch]
On
Behalf Of Soden, David
Sent: Thursday, August 19, 2004 12:02 PM
To: mrtg at list.ee.ethz.ch
Subject: [mrtg] More granular look at traffic transversing WAN link
question

Can I use MRTG to take a more granular look at the traffic traversing
WAN links?  I'd like to be able to look at a graph and determine what
percentage was AD replication, FTP, etc...  Currently I only have MRTG
graphing WAN Link utilization and was just wondering if I could expand
on that idea.  
Thanks in advance.
David


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