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Re: polling for default routing entries

To: nv-l@lists.tivoli.com
Subject: Re: polling for default routing entries
From: "Fendrick, Gib (CC-MIS)" <Gib.Fendrick@CONAGRA.COM>
Date: Fri, 7 Jan 2000 13:13:51 -0600
Rick,
Is the "iptrace" the way to answer your question, are we getting the same
number of routing entries from the router demand polls from each NetView?
Or is there some place in Netview I can look to see how many routing entries
are being retrieved?
Thanks,
Gib Fendrick
ConAgra, Inc.


-----Original Message-----
From: Richard Reed [mailto:Rick_Reed@TIVOLI.COM]
Sent: Friday, January 07, 2000 1:04 PM
To: NV-L@UCSBVM.UCSB.EDU
Subject: Re: polling for default routing entries


Gib,

Do you get the same number of routing entries from the router demand polls
from
either NetView?

Sounds like a good scenario for an "iptrace" from each of the NetView
servers to
the router during the demand polls.

Rick Reed
Tivoli Systems


"Owens, Blaine C" <bowens@EASTMAN.COM> on 01/07/2000 01:49:13 PM

Please respond to Discussion of IBM NetView and POLYCENTER Manager on
NetView
      <NV-L@UCSBVM.UCSB.EDU>

To:   NV-L@UCSBVM.UCSB.EDU
cc:    (bcc: Rick Reed/Tivoli Systems)
Subject:  Re: polling for default routing entries




Gib, I'm afraid I was in a hurry and didn't read your original post close
enough. I was thinking of the difference between a production ROUTER with
large tables and a test ROUTER with small tables. I see now that you are
looking at the same router (same tables) with two different NetViews.

Anybody with a clear head have any suggestions?

Blaine Owens
Eastman Chemical Company
Phone - (423)-229-3579
Fax - (423)-229-1188
bowens@eastman.com

> -----Original Message-----
> From: Fendrick, Gib (CC-MIS) [SMTP:Gib.Fendrick@CONAGRA.COM]
> Sent: Friday, January 07, 2000 1:30 PM
> To:   NV-L@UCSBVM.ucsb.edu
> Subject:      Re: polling for default routing entries
>
> Blaine,
> Any idea tho why the demand poll and load it puts on the router could
> be so different between the two NetView systems?
>
> Thanks,
> Gib Fendrick
> ConAgra, Inc.
>
> -----Original Message-----
> From: Owens, Blaine C [mailto:bowens@EASTMAN.COM]
> Sent: Friday, January 07, 2000 12:25 PM
> To: NV-L@UCSBVM.UCSB.EDU
> Subject: Re: polling for default routing entries
>
>
> You are innocent - I have found this behavior to be normal for our Cisco
> routers ( the larger the tables the greater the impact).
>
> Blaine Owens
> Eastman Chemical Company
> Phone - (423)-229-3579
> Fax - (423)-229-1188
> bowens@eastman.com
>
> > -----Original Message-----
> > From: Fendrick, Gib (CC-MIS) [SMTP:Gib.Fendrick@CONAGRA.COM]
> > Sent: Friday, January 07, 2000 1:13 PM
> > To:   NV-L@UCSBVM.ucsb.edu
> > Subject:      polling for default routing entries
> >
> > Hi all.
> >
> > I have two Netview/AIX 5.1.1 systems running (production and
> development).
> > When we do a Demand Poll on the prod system, it will take about 4
> minutes.
> > And the CPU on the router will shoot up to approx 60% during this time.
> > The Demand poll display spends most of this time on 'get default routing
> > entry'.
> >
> > When we do a Demand Poll on the development system, it takes about 15
> > seconds.
> > NO spike in CPU on the router.  No waiting for 'get default routing
> > entry'.
> > (Actually spends most
> > of this time waiting to time out on an interface that's down).
> >
> > It seems to have something to do with the routing table, which on the
> > router
> > in question is about
> > 1500 route entries.  Is there something we might have done that is
> > influencing how NetView retrieves
> > this table?   I've check the SNMP Configuration with the GUI on both
> > systems, they are the same.
> >
> > Anyone have any suggestions?
> >
> > Thanks,
> > Gib Fendrick
> > ConAgra, Inc.


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