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05-31-2012 01:50 AM

Hello,

Im having problem understanding units in Resource Graphs in Junos Space. In attachment Im sending a graph and the things that are a bit confusing are:

- On the graph do the lines above 0 represent in and below 0 represent Out traffic, and does this apply to all traffic. Precisely, will on any graph Out traffic be represented below 0 (like on attached picture yellow square)?
- What metric is
**m**? (in purple square on picture) - What metric is
**u**? (in red square on picture)

Thanks in advance,

Tia

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06-11-2012 10:40 PM

Hi,

Sorry for the delay

1.Your understanding is correct.The green one is In and Blue on is out traffic .

In- Above zero level

Out – Below zero level

2 and 3:

OpenNMS uses the prefixes from the SI unit table:

http://physics.nist.gov/cuu/Units/prefixes.html

Regards

Yesh

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06-12-2012 11:20 AM

Thanks Yaesh,

can you help me please to understand sent graph which shows percent utilization:

It shows Avg: 595.72 **u. **Is **u** micro? And if it is, what does this 595.72 **u **value means? Is this actually 595.72 micro percent traffic utilization?

Thanks in advance,

Tia

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# Re: Resource Graphs

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06-14-2012 12:56 AM - edited 06-14-2012 12:56 AM

Hi Tia,

yes, the number means the percent utilizes is in the order of 595.72x10^-6 %.

The best place to understand this are the RRDTool docs and then look at the graph definition in /opt/opennms/etc/snmp-graph.properties. For

The case in question, the following like seem relevant:

CDEF : percentIn=octIn,8,*,{ifSpeed},/,100,* \

( See also http://oss.oetiker.ch/rrdtool/tut/cdeftutorial.en.

And octIn is directly from the MIB ifInOctets

DEF : octIn={rrd1}:ifInOctets:AVERAGE \

So octIn is given in octets = bytes, first we multiply it by 8 ( octIn,8,*) to get the same number in bits, then we divide by ifSpeed (bits/sec) to get a measure of how much of the available bandwith was in use, times 100 for a percent value.

Thanks

Yesh

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06-15-2012 01:00 AM

Ok, thanks Jesh!

But one small last question: Avg value of 600.49m ICMP messages during selected time period means what? That during one hour I have average of 0.6 ICMP messages?

Tia

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06-25-2012 12:25 AM

Yes.

Regards

Yesh

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06-29-2012 05:03 AM

OK, thanks Yesh.

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