Yes, I installed GrahpViz. I did some research on their site and it
appears that you have to run dot -c to detect plugins. I did that and I
don't get the error anymore, unfortunately I still don't get a graph. It's
just a blank spot. e.g., see below.
Local Network Traffic Map
Graph generated by Dot, part of Graphviz, created by AT&T Research.
Anyone know of any reason it's not generating a graph? Could it not be
getting the raw data it needs? Thanks
Chandler Bing
Date: Wed, 7 Feb 2007 16:12:26 -0500
From: "Rosberg, Michael" <[EMAIL PROTECTED]>
Subject: RE: [Ntop] NTOP new install, Local Network Traffic Map
error
and too many Netflow devices cause NTOP to stop
updating
To: <[email protected]>
Message-ID:
<[EMAIL PROTECTED]>
Content-Type: text/plain; charset="us-ascii"
Believe the Graphviz Graph Visualization Software is a prerequisite for
the network map to work. You can download it from www.graphviz.org
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of
[EMAIL PROTECTED]
Sent: Wednesday, February 07, 2007 12:55 PM
To: [email protected]; [email protected]
Subject: [Ntop] NTOP new install, Local Network Traffic Map error and
too many Netflow devices cause NTOP to stop updating
Importance: High
I just installed NTOP and I'm seeing a couple of anomalies.
First, when I try to display the Local Network Traffic Graph, I get an
error (see below). I ensured that graphviz is installed and when I run
the
command listed below from the command line as root, I get the same
error.
Local Network Traffic Map
ERROR
Creation of network map failed
Command was:
/usr/bin/dot -Tpng -Goverlap=false /var/ntop/ntop.dot -o
/var/ntop/network_map.png 2>&1
Results were:
Error: Layout was not done. Missing layout plugins?
Second, when I add Netflow devices, the first works, but after I add
more
than 10 it stops updating. The devices are not setup for netflow yet as
I'm waiting for AT&T to make the changes, but removing all of them
except
for the one device that is setup to send netflow has restored
functionality. Is there any kind of limitation on how many devices you
can
receive netflow from or was it that they were not setup yet and that
cause
a problem?
Thanks
Chandler Bing
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