[mrtg] Re: Graphing Pings to router

[Brander, Eric]

You are graphing Per Second on that config.  So unless you get more than 1
per second average over 5 minutes, your graph will appear to be 0.  Try the
PerMinute or PerHour options.  On the first router, the one getting hundreds
per second, the graph looks fine when set as a persecond average.  But with
this second router you stated only 45 pings per minute, which is less that 1
per second, and MRTG won't graph anything less than 1 (by default anyway).

Eric Brander
ACS
Texas CHIP Account
Sr. Communications Engineer - Information Systems Department
512.336.3331
Eric dot Brander at acs-inc dot com


-----Original Message-----
From: Samson Martinez [mailto:smartine at motive.com]
Sent: Monday, February 17, 2003 1:03 PM
To: mrtg at list.ee.ethz.ch
Subject: [mrtg] Re: Graphing Pings to router



The interface being pinged is actually the failover address walking the OID
to that address actually shows an incrementing counter. I would imagine I
should see something even if it's only in the hundres per 5 minutes. Is
there such a thing as setting the maxbytes too high? Here's the snmpwalk of
this router showing the gradual increments. Each instance is about 5 seconds
apart:

snmpwalk router2 Commstring .1.3.6.1.2.1.5.8.0
icmp.icmpInEchos.0 = Counter32: 460432266
snmpwalk router2 Commstring .1.3.6.1.2.1.5.8.0
icmp.icmpInEchos.0 = Counter32: 460432270
snmpwalk router2 Commstring .1.3.6.1.2.1.5.8.0
icmp.icmpInEchos.0 = Counter32: 460432275
snmpwalk router2 Commstring .1.3.6.1.2.1.5.8.0
icmp.icmpInEchos.0 = Counter32: 460432278
snmpwalk router2 Commstring .1.3.6.1.2.1.5.8.0
icmp.icmpInEchos.0 = Counter32: 460432281
snmpwalk router2 Commstring .1.3.6.1.2.1.5.8.0
icmp.icmpInEchos.0 = Counter32: 460432281 

Here's the config being used (I've tried different MaxBytes):

Target[router2_icmp]:1.3.6.1.2.1.5.1.0&1.3.6.1.2.1.5.8.0:Commstring at router2:
Directory[router2_icmp]: icmp-stats
YLegend[router2_icmp]: ICMP Total Packets
ShortLegend[router2_icmp]: icmp
MaxBytes[router2_icmp]: 500000000000
Options[router2_icmp]: growright, nopercent
Title[router2_icmp]: Router2 ICMP Stats
Legend1[router2_icmp]: Inbound ICMP Packets (all)
Legend2[router2_icmp]: Inbound ICMP Packets (PING only)
LegendI[router2_icmp]: All
LegendO[router2_icmp]: Ping


-----Original Message-----
From: Mike Wren [mailto:mwren at burnsmcd.com] 
Sent: Monday, February 17, 2003 11:43 AM
To: mrtg at list.ee.ethz.ch; Samson Martinez
Subject: [mrtg] Re: Graphing Pings to router


I would think that this would be normal.  If someone pings the interface
address it would only go the one router.  If they ping the standby
address is would still only go to one router, the active router.  I do
not think that there is a specific maxbytes for pings.  I picked
100,000,000 assuming that it would never go that high.

>>> "Samson Martinez" <smartine at motive.com> 02/17/2003 11:01:50 AM >>>

I actually got it to work by removing the "gauge" option and now I'm
seeing about 6k pings per 5 minutes and that seems legit. However, I
have encountered something interesting. The second router, which is an
HSRP peer to this one and pretty much with an identical config, is not
giving any data on the graphs. Neither the graphic or the text is
showing data.

I walked the oid and it's functional but the only difference is the
quantity of pings to this router. This one is getting hit about 45 times
a minute as opposed to the thousands per minute on the 1st router. 

I tried searching through the docs and search engines for how to
determine the maxbytes but can't figure it out.

Can anyone assist?

Thanks!

-Samson
 

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