Re: multiple netview mlm up traps

1999-08-25 14:36:12
Subject: Re: multiple netview mlm up traps
From: Rob Napholz <tel1rxn AT NJCMAIL.UPS DOT COM>
To: nv-l AT lists.tivoli DOT com
Date: Wed, 25 Aug 1999 14:36:12 -0400
What I seeing is multiple node up events without any node or interface
down events.

So how/why is netview sending a event if the status is not changing


Ps I have opened a pmr

James Shanks wrote:
> Just a couple of things -   I don't know if they will help -- and if not, you
> may want to take the issue up with Support so that someone can separate the
> important facts from the rest.  If you are truly having a problem, you will 
> have
> to investigate it one interface and node at a time.
> First, you must distinguish between Node Up/ Node Down events and Interface 
> Up/
> Interface Down events.  These are not the same and will not be issued under 
> the
> same conditions.  Interfaces will be Up or Down depending on whether they
> respond to pings, but Nodes will be Up or Down depending on the status of all
> their interfaces.  So if you have a node with more than one interface, and a
> particular one goes down, but the others remain up, you get an Interface Down
> event for that interface but a Node Marginal, not a Node Down event, for the
> node. The Interface Down/Node Down, Interface Up/Node Up is only synonymous 
> when
> there is only one interface on the box.  So there first thing is to make sure
> you are looking at the right set of events.
> Second, NetView basically sends an event every time a status in the database
> changes.   He does not discard any.  You could build a ruleset to do that, but
> that is not a default function for the product.
> James Shanks
> Tivoli (NetView for UNIX) L3 Support
> Rob Napholz <tel1rxn AT njcmail.ups DOT com> on 08/25/99 10:20:09 AM
> Please respond to tel1rxn AT njcmail.ups DOT com
> cc:    (bcc: James Shanks/Tivoli Systems)
> Subject:  multiple netview mlm up traps
> Hello
> On Aug 1 router "X"  went down i received a down event, 3 hrs later when
> the router
> came up I received a up event. On Aug 2,3,4,6 I also received up events,
> no downs.
> On Aug 9 router "X" went down again, i received a down and a up event
> On Aug 14,14,16,17,19,20,23,24 I also received up events, no downs.
> This is just a example of 1 router.  The problem is wide spread.
> The router/interface only went down twice down. Why am I getting all of
> these up events ?
> The up events are for every interface on the router. The down event is
> for only one interface.
> The traps are all netview traps from a AIX MLM.
> Should netview be discarding all of these traps since the are no
> corresponding
> down traps ?
> why is netview generating all of these traps ?
> If the problem was a missed poll/ping one would expect to see down
> events not up.
> Any ideas
> thanks Rob

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