[mrtg] Re: Is it possible to monitor vpn tunnels?

[Jim Horwath]

Heath,

I monitor VPN tunnels here and although they work I do have some 
problems with them from time to time.  Many times the baud rate listed 
in the cfg file is 32000 regardless of what  the circuit is contracted 
to be.  I ask the network engineers to use a bandwidth statement on all 
virtual circuits, this seems to really help with capacity calculations. 
 Even with using the bandwidth statement the circuits still do not 
always detect the correct circuit speed in the cfg file.  However it 
appears the graph does reflect the correct speed we are using.  I have 
had occasions where we have burst to a value far in excess of the the 
baud rate listed in the configuration file, as a result no data is 
displayed.  I have the engineers bump the baud rate up a bit and 
everything works well.  These tunnels are running on Cisco routers over 
a T1 line.  I use more or less a vanilla configuration script for all my 
Cisco routers.  I hope this helps.

Regards,

Jim

Heath Deschenes wrote:

>I am curious if it is possible to graph multiple site to site vpn tunnels
>that run over a T1.
>
>Heath Deschenes
>
>
>
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-- 
Jim Horwath
Tools Engineer and Regular Guy
Agere Systems, Inc.
610-712-8663



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