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<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=796010916-27032007>The OM3500 has a Gig interface on the Ethernet side,
and .5 G on the RPR side. Realistically, we will probably
never hit more than 300Mb/s on the RPR side. Originally, I had my
polling cycle way too high (15 minutes). I have now changed that to 2 minutes
for the OM3500s. I had hoped to be able to use 64-bit counters, so
that I could use less frequent polling. </SPAN></FONT></DIV><BR>
<BLOCKQUOTE style="MARGIN-RIGHT: 0px">
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left>
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<FONT face=Tahoma size=2><B>From:</B> mrtg-bounces@lists.oetiker.ch
[mailto:mrtg-bounces@lists.oetiker.ch] <B>On Behalf Of </B>Eric
Brander<BR><B>Sent:</B> Tuesday, March 27, 2007 10:45 AM<BR><B>To:</B>
mrtg@lists.oetiker.ch<BR><B>Subject:</B> Re: [mrtg] 64-bit counters with
SNMPv1?<BR></FONT><BR></DIV>
<DIV></DIV><BR><BR>
<DIV><SPAN class=gmail_quote>On 3/26/07, <B class=gmail_sendername>Forthofer
Russ</B> <<A
href="mailto:Russ.Forthofer@ssfhs.org">Russ.Forthofer@ssfhs.org</A>>
wrote:</SPAN>
<BLOCKQUOTE class=gmail_quote
style="PADDING-LEFT: 1ex; MARGIN: 0pt 0pt 0pt 0.8ex; BORDER-LEFT: rgb(204,204,204) 1px solid">I
ran some additional tests, and it appears to me the 64-bit data may
be<BR>bogus. It would report 4K utilization on a link that should
be about<BR>50M or better.<BR><BR>I did find out from Nortel that the OM3500
does NOT support SNMPv2 - <BR>only SNMPv1. (I was hoping I just
had to flip a switch somewhere.)<BR>So, it appears that my only option is to
increase my polling frequency.<BR><BR>I have not checked the enterprise MIB,
as you suggested, but I will do <BR>that now. Not really holding
too much hope for that, though.<BR><BR>Thanks for your
help.<BR>Russ<BR></BLOCKQUOTE></DIV><BR>Russ,<BR><BR>How fast are your
interfaces? With 32-bit counters you should be able to successfully graph bit
over 100 mbps with 5-minute polling. Yet you mentioned 50M - is that megabytes
or megabits? If megabits then the 5-minute polling cycle should work just
fine. If megabytes then you'll need to go to a 1-minute polling interval which
is good to about 550 megabits/second if I recall correctly.
<BR><BR>Regards,<BR>-- <BR>Eric Brander </BLOCKQUOTE>
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