nv-l

Re: Collisions

1999-10-01 22:58:34
Subject: Re: Collisions
From: Joe Fernandez <jfernand AT KARDINIA DOT COM>
To: nv-l AT lists.tivoli DOT com
Date: Sat, 2 Oct 1999 12:58:34 +1000
Collision counter MIB variables are in the Ethernet MIB and in various
vendor enterprise MIBs.

The snmp_mibs directory on your NV system should contain the Ethernet MIB
either in its January 1993 version as RFC1398, or a later version. (
RFC1398 has subsequently been updated and made obsolete by RFC1623, then
RFC1643, then, for SMI v2, RFC1650, RFC2358, and finally RFC2665. I suggest
you load the latest one of these that you can find on your system.)

However, even RFC1398 has a dot3StatsTable which has (among other counters):
dot3StatsSingleCollisionFrames
dot3StatsMultipleCollisionFrames
dot3StatsLateCollisions
dot3StatsExcessiveCollisions

Various vendor enterprise MIBs also have collision counters, so I would
also look in the appropriate enterprise MIBs for your hub/switch/routers,
try Gets on both sets of variables and compare them.

Finally, I would, if possible, put a protocol analyser on for a short
period to verify that correct counts are being reported in the SNMP MIB
variables.

At 10:14 AM 10/1/99 +0200, you wrote:
>Is there any way of messuring collisions with snmp?
>
>I haven't found a MIB-variable for it anywhere, does it exist?
>
>
>-----------------------------------------
>Christian Frantsen
>Technical Operations
>
>Internoc Scandinavia AB
>Tel: +46-36-194843
>Fax: +46-36-194651
>http://www.internoc.se
>
Joe Fernandez
Kardinia Software
jfernand AT kardinia DOT com

http://www.kardinia.com


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