[mrtg] Re: Basic configuration questions...

[Bryan Socha]

This one is accually pretty easy to answer....

1: Don't forget that your polling a 5 minute average on the interface.
2: the unscaled is making the graph with the top being the max it could be,
if you only have a small percentage of that in actual, then the graph is
going to show almost nothing.  I would remove the unscaled option personally
unless you are pushing a lot of info past that interface.
3: Why do you think your overloading the interface?  are you sure thats the
problem?


Bryan Socha
Network Engineer
UGO Networks, Inc.

Phone: 212-624-3362
Cell: 917-439-5503

-----Original Message-----
From: Peter Bates [mailto:peter.bates at lshtm.ac.uk]
Sent: Tuesday, March 07, 2000 9:23 AM
To: mrtg at list.ee.ethz.ch
Subject: [mrtg] Basic configuration questions...



Hello all...

What follows below might be a bit odd,
considering that I've been wrestling with,
installing or tinkering with mrtg for a couple of years now, it seems...

Basically, we have a Cisco 7505 on site,
which acts as our main gateway to the 'outside world',
and I've been trying to get some usable statistics from it...

I've used cfgmaker and produced a cfg file, on the lines of:

Target[x.x.x.x.1]: 1:x at x.x.x.x
MaxBytes[x.x.x.x.1]: 12500000

for a Fast Ethernet interface...

and

Target[x.x.x.x]: 2:x at x.x.x.x
MaxBytes[x.x.x.x]: 1250000

for the actual 10Mb/ethernet
link to our next hop along...
(the x.x.x.x here is actually a
DNS name for the external interface,
as opposed to an IP address and then 'port' on the end)...


However, the graphs produced don't
appear to have much relationship
to the truth (or rather they do,
but the scale is clearly wrong...
we believe we are pretty much maxing-out
the external interface with incoming traffic,
whereas the 'max' at the moment seems to be 2Mb/s...)

I've added these to the config:

Unscaled[_]: ymwd
Options[_]: bits,growright
YLegend[_]: Bits Per Second
ShortLegend[_]: b/s
LegendI[_]:  Bits/s:
LegendO[_]:  Bits/s:

But when I start again, I seem to get
no stats at all on the graphs at all,
but I'm getting:

Max  Bits/s: 339.8 kb/s (3.4%)

Am I missing something?


Thanks for any information/advice in advance!


-- 
--------------------------------------------->
Peter Bates, Systems Support Officer,
Network Support Team
London School of Hygiene & Tropical Medicine.
Telephone:0207-927 2124 / Fax:0207-436 5389 / Pager: 07625 255362

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