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tia
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tia
Posts: 60
Registered: ‎04-30-2012
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Resource Graphs

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:

  1. 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)?
  2. What metric is m? (in purple square on picture) 
  3. What metric is u? (in red square on picture)

Thanks in advance,

Tia

Recognized Expert
Yesh
Posts: 456
Registered: ‎09-29-2009
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Re: Resource Graphs

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

 

tia
Contributor
tia
Posts: 60
Registered: ‎04-30-2012
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Re: Resource Graphs

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

Recognized Expert
Yesh
Posts: 456
Registered: ‎09-29-2009
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Re: Resource Graphs

[ Edited ]

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.html)

 

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

tia
Contributor
tia
Posts: 60
Registered: ‎04-30-2012
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Re: Resource Graphs

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

Recognized Expert
Yesh
Posts: 456
Registered: ‎09-29-2009
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Re: Resource Graphs

Yes.

 

Regards

Yesh

tia
Contributor
tia
Posts: 60
Registered: ‎04-30-2012
0

Re: Resource Graphs

OK, thanks Yesh.

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