[mrtg] Re: Does ifInOctets include the broadcasts and unicasts?
Koelstra, J. (Jan)
JKoelstra at MINSZW.NL
Fri Nov 8 16:48:00 MET 2002
Eric,
ifInOctets counts the the total number of bytes received on an interface, regardless of the type of packet these bytes are in.
IfInUcastPkts and ifInNucastPkts count the number of packets received on an interface. The number of packets on a network is not a very usefull counter to monitor, unless you also monitor the size of the packets.
The number of broadcasts on a (V)LAN can have a negative effect on the performance of the hosts connected to that part of the network. The reason for this is that every broadcast causes an interrupt at the CPU of every host. If you get to many of these it will slow down the machines, the slower machines suffer most.
With this in mind at every LAN/VLAN of our network I do monitor the number of ifInNucastPkts. This is not exactly the same as monitoring the number of broadcasts, but as long as this number stays low, the number of broadcasts is low too.
Jan.
-----Original Message-----
From: Brander, Eric [mailto:Eric.Brander at ACS-INC.com]
Sent: Friday, November 08, 2002 3:12 PM
To: 'mrtg at list.ee.ethz.ch'
Subject: [mrtg] Does ifInOctets include the broadcasts and unicasts?
Does the total in ifInOctets include ifInUcastPkts and ifInNucastPkts? And likewise for the Out? Should I be graphing unicast and non-unicast
(broadcasts?) packets separately?
-----Original Message-----
From: Brander, Eric [mailto:Eric.Brander at ACS-INC.com]
Sent: Friday, November 08, 2002 8:07 AM
To: 'mrtg at list.ee.ethz.ch'
Subject: [mrtg] Re: Getting collisions on CISCO : problem using mrtg
a nd O ID
I bet that was just his email program translating the public at a.b.c.d as an email address.
-----Original Message-----
From: Bishop, Dean [mailto:dean.bishop at tcdsb.org]
Sent: Friday, November 08, 2002 6:49 AM
To: 'Michaël Tahot'; 'mrtg at list.ee.ethz.ch'
Subject: [mrtg] Re: Getting collisions on CISCO : problem using mrtg
and O ID
good morning,
i am not sure why there is, what appears to be an E-mail address in your config's target parameter. is this just an E-mail formatting problem or does this exist in your config?
if it is in your config, remove it. Ala:
Target[10.0.0.1]: 1.3.6.1.4.1.9.2.2.1.1.25.25&1.3.6.1.4.1.9.2.2.1.1.25.25:public at 10.0.0.1
hope this helps,
dean
--
dream outloud
-----Original Message-----
From: Michaël Tahot [mailto:Michael.Tahot at activcard.fr]
Sent: Thursday, November 07, 2002 9:19 PM
To: 'mrtg at list.ee.ethz.ch'
Subject: [mrtg] Getting collisions on CISCO : problem using mrtg and OID
Hello,
I'm a newby to MRTG, here is my problem :
I'm trying to gather collisions from my CISCO boxes using MRTG
I have found a sample script on SOMEX but when I run the script with MRTG, I
encounter a problem
Does anyone has an idea ?
Thanks in advance
Here is the script
-------------------------------------------------------
# cisco - locIfCollisions
#
# This configuration was generated by
# Somix Technologies, Inc (www.somix.com <http://www.somix.com> ) - Dynamic Template Assembler # # Example CFGNAME : [DEVICE NAME]-cisco_locIfCollisions
WorkDir: /var/www/html/mrtg/test
Target[10.0.0.1]: 1.3.6.1.4.1.9.2.2.1.1.25.25&1.3.6.1.4.1.9.2.2.1.1.25.25:pu
blic@ <mailto:blic at 10.0.0.1> 10.0.0.1
MaxBytes[10.0.0.1]: 100000
Title[194.98.219.1]: 10.0.0.1 - cisco
PageTop[10.0.0.1]: 10.0.0.1 - cisco
# NOTE: You may need to change the options below to reflect this type of MIB
Options[10.0.0.1]: unknaszero
YLegend[10.0.0.1]: locIfCollisions
ShortLegend[10.0.0.1]:
Legend1[10.0.0.1]: locIfCollisions
Legend2[10.0.0.1]: .
Legend3[10.0.0.1]: Max value per interval on graph
Legend4[10.0.0.1]: .
LegendI[10.0.0.1]:
LegendO[10.0.0.1]: .
Colours[10.0.0.1]: GREEN#00eb0c,BLUE#EEEEEE,GRAY#AAAAAA,VIOLET#ff00ff
WithPeak[10.0.0.1]: ymw
-------------------------------------------------------
Here is the problem I encounter
-------------------------------------------------------
[root at conf]# env LANG=C ../bin/mrtg mrtg-collision.cfg
SNMP Error:
Received SNMP response with error code
error status: noSuchName
index 1 (OID: 1.3.6.1.4.1.9.2.2.1.1.25.25)
SNMPv1_Session (remote host: "10.0.0.1" [10.0.0.1].161)
community: "public"
request ID: -1718300897
PDU bufsize: 8000 bytes
timeout: 2s
retries: 5
backoff: 1)
at /usr/local/mrtg-2/bin/../lib/mrtg2/SNMP_util.pm line 458 SNMPGET Problem for 1.3.6.1.4.1.9.2.2.1.1.25.25 1.3.6.1.4.1.9.2.2.1.1.25.25 sysU ptime sysName on <mailto:public at 194.98.219.1> public at 194.98.219.1 at ../bin/mrtg line 1620
WARNING: skipping because at least the query for 1.3.6.1.4.1.9.2.2.1.1.25.25 on 10.0.0.1 did not succeed
ERROR: Target[10.0.0.1][_IN_] ' $$target[0]{$mode} ' did not eval into defin ed data
ERROR: Target[10.0.0.1][_OUT_] ' $$target[0]{$mode} ' did not eval into defi ned data
WARNING: Skipping Update of 10.0.0.1, inlast is not defined
WARNING: Skipping Update of 10.0.0.1, outlast is not defined
-------------------------------------------------------
Michaël Tahot
IT Manager
ActivCard
24-28 Av du Général De Gaulle
92156 Suresnes Cedex
France
http://www.activcard.com <http://www.activcard.com/>
Phone : + 33 1 42 04 84 00
Fax : + 33 1 42 04 84 84
The Information in this email and any attachments is confidential and may also be legally privileged. If you are not the intended recipient, you must not read, copy, use, or disclose that information, and you are not authorized to retain it in any form nor to re-transmit it, and you should destroy this email unread.
--
Unsubscribe mailto:mrtg-request at list.ee.ethz.ch?subject=unsubscribe
Archive http://www.ee.ethz.ch/~slist/mrtg
FAQ http://faq.mrtg.org Homepage http://www.mrtg.org
WebAdmin http://www.ee.ethz.ch/~slist/lsg2.cgi
--
Unsubscribe mailto:mrtg-request at list.ee.ethz.ch?subject=unsubscribe
Archive http://www.ee.ethz.ch/~slist/mrtg
FAQ http://faq.mrtg.org Homepage http://www.mrtg.org
WebAdmin http://www.ee.ethz.ch/~slist/lsg2.cgi
--
Unsubscribe mailto:mrtg-request at list.ee.ethz.ch?subject=unsubscribe
Archive http://www.ee.ethz.ch/~slist/mrtg
FAQ http://faq.mrtg.org Homepage http://www.mrtg.org
WebAdmin http://www.ee.ethz.ch/~slist/lsg2.cgi
--
Unsubscribe mailto:mrtg-request at list.ee.ethz.ch?subject=unsubscribe
Archive http://www.ee.ethz.ch/~slist/mrtg
FAQ http://faq.mrtg.org Homepage http://www.mrtg.org
WebAdmin http://www.ee.ethz.ch/~slist/lsg2.cgi
--
Unsubscribe mailto:mrtg-request at list.ee.ethz.ch?subject=unsubscribe
Archive http://www.ee.ethz.ch/~slist/mrtg
FAQ http://faq.mrtg.org Homepage http://www.mrtg.org
WebAdmin http://www.ee.ethz.ch/~slist/lsg2.cgi
More information about the mrtg
mailing list