[mrtg] See the WAN-utilization in percentage % instead of bits/s

[Stefan.Heins at seb.de]

Hi,
how can i see the E1-WAN-Utilization in percentage and not in bits/s?

     alex at slot.hollandcasino.nl
     already gave an answer to :
|--------------------------------------------------------------------------|
|                                                                          |
|  Jonathan P Tornea                                                       |
|  Network Engineer                                                        |
|  DataOne Asia (Philippines) Inc                                          |
|                                                                          |
|                                                                          |
|--------------------------------------------------------------------------|

who already asked this question. The answer you can see below
|--------------------------------------------------------------------------|
|                                                                          |
|  A percentage can be calculated as follows:                              |
|      current speed / maximum speed * 100.                                |
|                                                                          |
|  This can be written as:                                                 |
|      current speed / (maximum speed/100)                                 |
|                                                                          |
|  So your target should probably read:                                    |
|      Target[e1]: 1:public at router / 2400                                  |
|                                                                          |
|  Reasoning: E1 is 30*64kbps (modify if yours is different) is 1920kbps.  |
|  This means a MaxBytes of 1920000 / 8 == 240000                          |
|  Divide by 100 to get 2400.                                              |
|                                                                          |
|                                                                          |
|--------------------------------------------------------------------------|


i am using E1 with 2 MBit/s. 960 kBit/s in normal mode and 1920 kBit/s in
bursted mode. We pay only for the normal mode. The bursted mode is not
guaranted by our provider and can only be given for a very short time
(seconds).
when i look at the graph, generated by this *.cfg i don`t agree to the
output. To verify the util. i use the HP Node Manager to see the current
util in %. There the average is about 10% with short peaks up to 90%. in
the mrtg graph it`s much more constant. During more or less 15 Minutes it
shows an util of 60%.
What am i doing wrong?
Does somebody have an idea or experience with showing utilization in
percentage instead of kBit/s?
I thank for for every answer...


Mit freundlichen Grüssen
Stefan Heins
S|E|B AG
Netzwerkmanagement
Tel: 069/258-9008
Fax: 069/258-8979
http://inet.seb.de/corpcommon/wpm.nsf/FrameSet?ReadForm&ResSt=nmgmt



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