[mrtg] Graphing sysUptime and other timeticks variables

Alistair.McGlinchy at marks-and-spencer.com Alistair.McGlinchy at marks-and-spencer.com
Thu Jun 6 22:48:57 MEST 2002

Hi All,

I've searched the archives pretty heavily and I can't find the answer to
what I thought would be a simple problem. Can anyone tell me how to draw a
graph of sysUpTime or any other timeticks value. I want to be able to
compute MTBF values and this seams a great way to do it.

I'm using the following target to get SysUptime and last OS Upgrade time of
a Proteon router 
	Target[Proteon_BSB008_UpTime]: at

But I get the following 
	WARNING: Expected a number but got '101 days, 9:26:49'

Tracing the collection I see that the returned frame does not contain this
text string. The frame contains the number of 100ths of a second since last
reboot. So I had presumed that MRTG itself was converting the number into
the pretty text string. What I cannot work out is how to specify the correct
Target string to force MRTG not to do the conversion. I know I can write my
own external script to do this for me, but is this really the only way?

[Here's the return frame as seen by Ethereal]
Frame 2 (163 on wire, 163 captured)
User Datagram Protocol, Src Port: 161 (161), Dst Port: 1590 (1590)
Simple Network Management Protocol
    Version: 1
    Community: public
    PDU type: RESPONSE
    Request Id: 0x49be1c07
    Error Status: NO ERROR
    Error Index: 0
    Object identifier 1:
    Value: INTEGER: 186276 (0x2d7a4)
    Object identifier 2:
    Value: INTEGER: 47448 (0xb958)
    Object identifier 3:
    Value: TIMETICKS: 876388571 (0x343ca0db)
    Object identifier 4:

Any ideas gratefully appreciated.

> ----------------------------------------------------------------------
> Alistair McGlinchy,           alistair.mcglinchy at marks-and-spencer.com
> Sizing and Performance, Central IT,   ext. 5012,   ph +44 20 7268-5012
> Marks and Spencer, 3 Longwalk Rd, Stockley Park, Uxbridge UB11 1AW, UK 


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