You need to look at your network response time and specifically the delay
variance. Run a ping test over a period and find out the min/max/avg
response time. Use these figures to determine your poll timers. If the
variance is too large, you need to look at the Network itself (Line
utilisation, Router memory or CPU usages, protocol priority) and you will
have to "tune" the Network to give you more consistent response time for
Ping and SNMP Poll. This later can get quite complex and you will need a
Network expert to help you
Phil
> -----Original Message-----
> From: Phat D Doan [SMTP:pddoan@REGENCE.COM]
> Sent: Tuesday, 30 March 1999 0:21
> To: NV-L@UCSBVM.ucsb.edu
> Subject: Re: Nodes going up/down
>
> I do have the same problem - nodes going down and up on only one
> particular
> agent (Sun E6000 with 4 network connections). For my situation, the
> message came from the MLM - TME_10/MLM 1.3.6.1.4.1.2.6.12, event specific
> number 1 and 2 (MLM_SessionDown and MLM_SessionUp). I increased the poll
> time in MLM and timeout in Netview (snmp configuration menu) but the
> problem still persists. Any suggestionn would be appreciated.
>
> Phat Doan
>
>
>
>
> From: Nicaud Phil <pnicaud@WOOLWORTHS.COM.AU> on 03/28/99 03:13 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: Phat D Doan/BCBSO/TBG)
> Subject: Re: Nodes going up/down
>
>
>
>
> Hi Christian
>
> We have had the same problem on our Network, and modifying the poll timer
> did not help.
>
> This is a Cisco Network which was using CISCO Priority queuing to give
> priority to our SNA/DLSw traffic. We had a situation where the SNA traffic
> was totally excluding other traffic (SNMP and ICMP) so that Netview would
> think that the Nodes were down. We had to re-engineer the Network to
> ensure
> ICMP and SNMP had some priority in the scheme of things.
>
> Could this be the problem on your Network?
>
> Good luck
>
> Phil
>
> > -----Original Message-----
> > From: Frantsen Christian [SMTP:cf@INTERNOC.SE]
> > Sent: Thursday, 25 March 1999 21:38
> > To: NV-L@UCSBVM.ucsb.edu
> > Subject: Nodes going up/down
> >
> > I'm having trouble with nodes goning up and down in Netview, but they
> are
> > not going down "in real life".
> >
> > Sometimes i get alerts that nodes and interfaces are going down, then
> the
> > next poll intervall they come up again, after that i go in and query
> > sysUptime and it shows several days or weeks or more, so they haven't
> been
> > down.
> >
> > I don't loose all nodes in that area at the same time, so it's not the
> > link
> > going down either.
> >
> > Anyone got some tips?
> >
> > -----------------------------------------
> > Christian Frantsen
> > Internoc Scandinavia AB
> > Tel: +46-36-194843
> > Fax: +46-36-194651
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