[mrtg] Re: Switch Broadcast load

[Koelstra, J. (Jan)]

Oliver,

MRTG does just what you told it to do: Treat the counter as an absolute
figure.
The NonUnicastPackets counter (contains broadcast AND multicast packets)
is an ever increasing counter. If you use the absolute option you will
get an increasing graph.
The solution: leave out the absolute from the options line. Now you get
the number of packets per second. This number is probably very low, so
you might consider using the perminute option.

HTH,

Jan.
 

-----Original Message-----
From: Oliver Ziltener [mailto:ziltener at netcloud.ch] 
Sent: Thursday, November 28, 2002 5:57 PM
To: mrtg at list.ee.ethz.ch
Subject: [mrtg] Switch Broadcast load 



Hello List
I got weird results when I measure the totally NonUniCastPackets
(=broadcast). The graph increase all time a little bit. MRTG should take
with the option "absolute" every 5 min the absolute value and show it in
the graph, but it seems mrtg add all the time the previous value with
the actuel value.

Has anybody an idea why?

Oliver


#CAt2948G NonUniCastPackets Vlan 1
Target[10.1.2.1_ifInNUcastPkts.1]:
1.3.6.1.2.1.2.2.1.12.1&1.3.6.1.2.1.2.2.1.12.1:ncgreadonly at 10.1.2.1
RouterUptime[10.1.2.1_ifInNUcastPkts.1]: ncgreadonly at 10.1.2.1
MaxBytes[10.1.2.1_ifInNUcastPkts.1]: 125000000
Title[10.1.2.1_ifInNUcastPkts.1]: Packets In
PageTop[10.1.2.1_ifInNUcastPkts.1]: <H2>Switch inside_sw Cisco Catalyst
2948G: Total NonUniCast(in) Pakete VLAN1</H2>
ShortLegend[10.1.2.1_ifInNUcastPkts.1]: Pkts
Colours[10.1.2.1_ifInNUcastPkts.1]: GREEN#00ff00,BLUE#0000ff,DARK
GREEN#00aa00,DARK BLUE#0000aa
YLegend[10.1.2.1_ifInNUcastPkts.1]: Packets In
Legend1[10.1.2.1_ifInNUcastPkts.1]: Packets In
Legend2[10.1.2.1_ifInNUcastPkts.1]: Packets In
Legend3[10.1.2.1_ifInNUcastPkts.1]: n.a.
Legend4[10.1.2.1_ifInNUcastPkts.1]: n.a.
#Unscaled[10.1.2.1_ifInNUcastPkts.1]:
LegendI[10.1.2.1_ifInNUcastPkts.1]:
LegendO[10.1.2.1_ifInNUcastPkts.1]: &nbsp;Usage:
Options[10.1.2.1_ifInNUcastPkts.1]: growright, integer, absolute,
nobanner

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