[mrtg] Re: Maybe this will be a better question...
David C Prall
dcp at dcptech.com
Thu Oct 28 15:23:13 MEST 1999
You want to get the MIB's provided by the hardware manufacturer.
ftp://ftp.3com.com has a number of them, although their descriptions and
naming conventions suck. You'll need to grep through the files and find
which ones have 43 defined. Then add this into your MIB Browser.
David C Prall, MCNE MCSE DCP Technologies
dcp at dcptech.com Alexandria, VA
dcppage at dcptech.com http://www.dcptech.com
----- Original Message -----
From: Rick Horowitz <rickh at ValleyYellowPages.com>
To: mrtglist <mrtg at list.ee.ethz.ch>
Sent: Wednesday, October 27, 1999 4:12 PM
Subject: [mrtg] Maybe this will be a better question...
> Thinking along the lines of the "teach a man to fish" parable, I
thought I'd
> ask a different kind of question that might help me in finding the
things I
> want to track.
>
> I found this software called MG-SOFT MIB Browser Professional Edition.
It
> has this RMON-MIB in it, and I trace down through the tree of that to
what I
> think I want to monitor. Forgive me if this notation is wrong, or I
sound
> like I don't know what I'm doing, because I don't; SNMP/RMON stuff is
still
> something like a foreign language to me.
>
> As an example, I basically trace through these things:
>
>
iso->org->dod->internet->mgmt->mib-2->rmon->statistics->etherStatsTable-
>eth
> erStatsEntry->etherStatsCollisions
>
> And then I right-click on etherStatsCollisions, and choose "Info".
This
> pops up a screen that shows a long list of which part looks like this:
>
> Name Syntax Value
> etherStatsCollisions.44651 cntr32 0
> etherStatsCollisions.44713 cntr32 0
> etherStatsCollisions.46469 cntr32 0
>
> And so on.
>
> Now, if I right-click on, say, etherStatsCollisions.44651, I see a
submenu
> which has a bunch of stuff in it, but the important part seems to be
this:
>
> (13) etherStatsCollisions
> (1) etherStatsEntry
> (1) etherStatsTable
> (1) statistics
> (16) rmon
> (1) mib-2
> (2) mgmt
> (1) internet
> (6) dod
> (3) org
> (1) iso
>
> Another counter for etherStatsPkts looks the same, but has a 5 instead
of a
> 13.
>
> So I figure if I create this:
>
> Target[collisions.superstack.44651]:
>
1.3.6.1.2.1.16.1.1.1.13.4651&1.3.6.1.2.1.16.1.1.1.5.44651:mycommunity at my
swit
> ch
> MaxBytes[collisions.superstack.44651]: 1250000
> LegendI[collisions.superstack.44651]: Collisions
> LegendO[collisions.superstack.44651]: Packets In
> Legend1[collisions.superstack.44651]: Collisions
> Title[collisions.superstack.44651]: CORPMISW00000XX (Unit 3/Port 1)
> PageTop[collisions.superstack.44651]: <H1>Collisions vs. Packets In
Analysis
> for Some Unit/Some Port
> </H1>
> <TABLE>
> <TR><TD>System:</TD><TD>CORPMISW00000XX</TD></TR>
> <TR><TD>Maintainer:</TD><TD>rickh at ValleyYellowPages.com</TD></TR>
> <TR><TD>Interface:</TD><TD>Some Unit/Some Port</TD></TR>
> <TR><TD>IP:</TD><TD> </TD></TR>
> <TR><TD>Max Speed:</TD>
> <TD>12.5 MBytes/s (ethernetCsmacd)</TD></TR>
> </TABLE>
>
> Then when it runs, it should provide the information regarding
collisions
> for that particular port.
>
> Is this a correct assumption? May I make similar assumptions
regarding how
> to obtain the correct OID for collecting other info? That is, simply
find
> the thing I want in the MIB browser, right click it, and trace the
numbers
> all the way like I did above, then plug them into some MRTG.cfg file?
>
> If this all works, then how do you learn what all these things
actually are
> worth tracing? For example, I see this thing there called
hostOutPkts, and
> I right-click it, select "Info", and I get this really long list (I've
> trimmed it down to four lines here, but it's very very long):
>
> hostOutPkts.8.6.0.16.75.147.150.203 cntr32 4367240
> hostOutPkts.8.6.0.16.75.148.96.173 cntr32 1081228
> hostOutPkts.8.6.0.16.75.148.96.233 cntr32 798986
> hostOutPkts.8.6.0.16.75.148.96.250 cntr32 1036996
>
> Is this what I think it is? The number of packets sent out by a
machine
> that routes through this switch? If so, is there a way to figure out
which
> machine is which?
>
> Also, if I select "enterprises" and choose "walk" I see tons of
entries, one
> of which looks like this: enterprises.43.10.1.14.4.1.1.3.51563
(int32) 14
>
> How can I find out what stuff like that is? Is this specific to some
MIB
> file, and if I find that file, I'll trace down through all those
numbers,
> and it will tell me what I'm looking at? (That's what I'm thinking,
but I'm
> not sure.)
>
> Finally, I apologize for the length of this note. And, if these
questions
> aren't really appropriate to this list, please feel free to flame or
answer
> me privately. I promise to delete all the flames without response;
you
> won't hurt my feelings. I figure although these questions don't
relate
> directly to the MRTG program, the answers might help me, and many
other
> people, learn how to make better use of MRTG.
>
> Thank you.
>
> Rick Horowitz Cisco Certified Network
Associate
> Network Administrator Microsoft Certified
Professional
> ----------------------------------------------------------------------
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Inc.
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