[mrtg] Re: Collisions --> device needs RMON Mib --> RFC 1757

[Neil Calvert]

And of course one other thing to mention is you most times have to
manually turn on RMON logging either at the device management console or
through management software...


-----Original Message-----
From: Stanley, Peter T <stanley at ctron.com>
To: 'Larry Sheldon' <lsheldon at creighton.edu>; cf at internoc.se
<cf at internoc.se>
Cc: mrtg at list.ee.ethz.ch <mrtg at list.ee.ethz.ch>
Date: Friday, October 01, 1999 11:33 AM
Subject: [mrtg] Re: Collisions --> device needs RMON Mib --> RFC 1757


>
>> Some vendors provide collision data in the private MIB stuff.
>Actually it is defined in the RMON mib RFC 1717
>
>http://www.cis.ohio-state.edu/htbin/rfc/rfc1757.html
>
>If you want to measure collisions on a device, the
>device must support RMON.
>Specifically the ethernet statistics group must be supported
>to gather collision data.
>
>RMON has nine groups.
>You can usually look for "mini RMON" or the "Four Pack RMON".
>Those devices most likely will support the basic four groups:
>Statistics, History, Alarms, and Events
>
>The entire nine includes:
>ethernet statistics, ethernet history,
>alarm, host, hostTopN, matrix, filter, packet capture, event
>
>One of the previous post had the correct location:
>Target[collch]:
> 1.3.6.1.2.1.16.1.1.1.13.port&1.3.6.1.2.1.16.1.1.1.13.port:comm at a.b.c.d
>
>Here is the path:
>iso(1).org(3).dod(6).internet(1).mgnt(2).mib(1).rmon(16).statistics(1).
>etherStatsTable(1).etherStatsEntry(1).etherStatsCollisions(13).port
>
>I have used a config file similar to the one posted previously.
>As for perhour or not,  I have monitored networks that have so many
>collisions the perhour option is not needed to get the point across.
>
>The moral, when you purchase network gear check to see which versions
(1,2)
>and groups (1 to 9) of RMON are supported.  Sometimes you have to read
>between the lines when a vendor says the support RMON they are only
>supporting the basic four groups (which if fine for seeing collisions).
>
>-Peter
>
>Peter Stanley   (stanley at cabletron.com)
>Cabletron Systems
>5200 Great America Parkway
>Santa Clara, CA 95054-1108
>
>> -----Original Message-----
>> From: Larry Sheldon [mailto:lsheldon at creighton.edu]
>> Sent: Friday, October 01, 1999 6:59 AM
>> To: cf at internoc.se
>> Cc: mrtg at list.ee.ethz.ch
>> Subject: [mrtg] Re: Collisions
>>
>>
>> > Is there any way of measuring collisions with snmp?
>>
>> "Yes, but......" and, "It depends.....".
>> > I haven't found a MIB-variable for it anywhere, does it exist?
>> Some vendors provide collision data in the private MIB stuff.
>> I don't think there is anything in the "internet" MIB.      .
>> - L. F. (Larry) Sheldon, Jr.
>
>--
>* To unsubscribe from the mrtg mailing list, send a message with the
>  subject: unsubscribe to mrtg-request at list.ee.ethz.ch
>* The mailing list archive is at http://www.ee.ethz.ch/~slist/mrtg
>

--
* To unsubscribe from the mrtg mailing list, send a message with the
  subject: unsubscribe to mrtg-request at list.ee.ethz.ch
* The mailing list archive is at http://www.ee.ethz.ch/~slist/mrtg