Ticket #34 (closed defect: use support list)
error calculating Multi Target
| Reported by: | human | Owned by: | somebody |
|---|---|---|---|
| Version: | Keywords: | ||
| Cc: |
Description
I need to show one of graphs as differnce between two ports.
Part of .cfg file:
Target[istrf]: -#Fa5/12:xxx@cat-6509: - #Fa5/43:xxx@cat-6509:
Both Fa5/12 and Fa5/43 graphs displayed correctly, but istrf graph periodically shows unnormous "peaks". I think that is because counter overflows, which processed right when calculating single target, but with error when we using multi target.
Examples of all three .log's and istrf-day.png in attach.
Attachments
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cat-6509.is.lan_fa5_12.log
(77.4 KB) -
added by human 4 years ago.
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cat-6509.is.lan_fa5_43.log
(59.1 KB) -
added by human 4 years ago.
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istrf.log
(48.5 KB) -
added by human 4 years ago.
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istrf-day.png
(2.3 KB) -
added by human 4 years ago.
Change History
comment:1 Changed 4 years ago by human
I'm sorry to not supply additional info.
mrtg v.2.15.2
If you need additional feedback please contact me by e-mail ivb@…
comment:2 Changed 14 months ago by oetiker
- Status changed from new to closed
- Resolution set to use support list
the problem is that mrtg builds the difference between the two input values and only later builds the diffs ... this causes spikes as the counters wrap. for a better solution, use rrdtool with STACK.
cheers tobi
