[mrtg] Re: MRTG - SAA implementation
Peter P. Benac
ppbenac at emacolet.com
Fri Jul 11 15:38:02 MEST 2003
.1.3.6.1.4.1.9.9.42.1.5.2
rttMonLatestJitterOperTable OBJECT-TYPE
-- FROM CISCO-RTTMON-MIB
DESCRIPTION "A table which contains the status of latest Jitter
operation."
::= { iso(1) org(3) dod(6) internet(1) private(4) enterprises(1) cisco(9)
ciscoMgmt(9) ciscoRttMonMIB(42) ciscoRttMonObjects(1) rttMonLatestOper(5) 2
}
Search the MIB for Jitter to get all the VARBINDS available.
Regards,
Pete
----
Peter P. Benac, CCNA
Emacolet Networking Services, Inc
Providing Systems and Network Consulting, Training, Web Hosting Services
Phone: 919-847-1740 or 866-701-2345
Web: http://www.emacolet.com
Need quick reliable Systems or Network Management advice visit
http://www.nmsusers.org
To have principles...
First have courage.. With principles comes integrity!!!
-----Original Message-----
From: Amol Sapkal [mailto:amolsapkal at coolgoose.com]
Sent: Friday, July 11, 2003 12:55 AM
To: ppbenac at emacolet.com
Cc: mrtg at list.ee.ethz.ch
Subject: Re: RE: Re: RE: [mrtg] MRTG - SAA implementation
Perter,
> Phase Jitter in VoIP is the measure of inter-packet delay not the
> Round Trip Time of the packet.
Thanks for the inputs. It helped me clear some confusions regarding jitter.
I have almost gone through the entire CISCO-RTTMON.MIB file, I have not come
across a value which will give me the inter-packet delay (could be I have
missed upon the values). Could you help me with the OIDs which actually
carry these data?
> Amol,
>
> Phase Jitter in VoIP is the measure of inter-packet delay not the
> Round Trip Time of the packet. Round Trip time is important but the
> inter-packet delay can kill you. Remember Voice is actually UDP
> packets. If the inter-packet delay gets to be too much the call
> gateways or gatekeepers could try to compensate because it will think
> the next packet got lost and your voice will begin to sound like it's
> under water.
>
> Round Trip Delay will make the Voice sound choppy.
>
> Cisco's SAA is specifically designed to measure that Jitter Value,
> as well as Round Trip Times and Packet loss.
>
> Since these values are built into Cisco MIBs they values can be
> extracted by MRTG in the same manner Ciscoworks 2000 does with IPM.
>
> Regards,
> Pete
> ----
> Peter P. Benac, CCNA
> Emacolet Networking Services, Inc
> Providing Systems and Network Consulting, Training, Web Hosting
> Services
> Phone: 919-847-1740 or 866-701-2345
> Web: http://www.emacolet.com
> Need quick reliable Systems or Network Management advice visit
> http://www.nmsusers.org
>
> To have principles...
> First have courage.. With principles comes integrity!!!
>
>
> -----Original Message-----
> From: Amol Sapkal [mailto:amolsapkal at coolgoose.com]
> Sent: Wednesday, July 09, 2003 22:37
> To: ppbenac at emacolet.com
> Cc: mrtg at monster.coolgoose.com
> Subject: Re: Re: RE: [mrtg] MRTG - SAA implementation
>
>
> Thx Peter,
> Will check that too.
> My logic works simply on plotting 2 values from CISCO RTTMON. Im
> looking fwd to plot 4 values from CISCO RTTMON on a single graph.
>
>
>
> Regds,
> Amol
>
> >
> >
> >
> > > Amol,
> > >
> > > If you are using Cisco Equipment on your network the Service
> > > Assurance Agent can be set up to specifically measure Phase-Jitter.
> > > These values can then be extracted by SNMP.
> > >
> > > If you have access to CCO please check out the following link.
> > >
> > > http://www.cisco.com/warp/partner/synchronicd/cc/pd/iosw/prodlit/s
> > > aa
> > > ug_ai.ht
> > > m#xtocid22
> > >
> > > I am in the process of setting up this very thing for my
> > > current
> > > client.
> > >
> > > Regards,
> > > Pete
> > > ----
> > > Peter P. Benac, CCNA
> > > Emacolet Networking Services, Inc
> > > Providing Systems and Network Consulting, Training, Web Hosting
> > > Services
> > > Phone: 919-847-1740 or 866-701-2345
> > > Web: http://www.emacolet.com
> > > Need quick reliable Systems or Network Management advice visit
> > > http://www.nmsusers.org
> > >
> > > To have principles...
> > > First have courage.. With principles comes
> > > integrity!!!
> > >
> > >
> > >
> > > -----Original Message-----
> > > From: mrtg-bounce at list.ee.ethz.ch
> > > [mailto:mrtg-bounce at list.ee.ethz.ch] On Behalf Of Amol Sapkal
> > > Sent: Wednesday, July 09, 2003 20:21
> > > To: mrtg at list.ee.ethz.ch
> > > Subject: [mrtg] MRTG - SAA implementation
> > >
> > >
> > > Hi All,
> > > Just to share this-
> > >
> > > I have figured out a way to measure jitter (on voice networks)
> > > using
> > > SAA (Service Assurance Agent)
> > >
> > > The parameters to be graphed are:
> > >
> > > Latest Jitter Operation's No of successful RTTs &
> > > Latest Jitter Operation's Sum of successful RTTs
> > >
> > > This will give a fair idea on any variation on the latency values
> > > between the SAA owner and responder.
> > >
> > > Please correct me, if anyone has a better way of graphing jitter.
> > >
> > >
> > > Thanks Tobi for the help offered in joining in!
> > >
> > > Regds,
> > >
> > > Amol Sapkal
> > > --------------------------
> > > Temperament is not destiny
> > >
> > > --
> > > Unsubscribe mailto:mrtg-request at list.ee.ethz.ch?subject=unsubscribe
> > > Archive http://www.ee.ethz.ch/~slist/mrtg
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Cheers,
Amol Sapkal
--------------------------
Temperament is not destiny
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