RE: [nv-l] using SNMP trap to change object attribute

[Leslie Clark <lclark@us.ibm.com>]

I do that sort of thing like this:
1) add a field to my custom fields file
/usr/OV/fields/C/My.fields
Field "My_Trap_Flag" {
        Type  
 String;
        Flags  
locate, general;

}
Run 'ovw -fields' after messing with
a fields file. 
2) In trapd.conf, define the traps of
interest as having a trap source of 'Y' instead of the usual 'A' or 'u'
3) Make a Netview ruleset that with
an Event Attribute cube that checks trap source for 'Y' and invokes an
action '<path>/TrapFlag.sh -set $NVA'
4) Make that ruleset run in the background
(/usr/OV/conf/ESE.automation)
5) write a little script TrapFlag.sh
that uses nvdbimport to set the field 'My_Trap_Flag' to TRUE for the node
that the trap is from.
6) On the reports menu (/usr/OV/reports/C)
add two scripts to call that script: TrapFlagSet.sh and TrapFlagClear.sh

Trap_Flag_Set.sh
#!/bin/ksh
# Set trap flag to True for the selected
nodes.        
name=$(basename $0)
xnmappmon -geometry 680x500 -commandTitle
"$name" \
   -commandHeading "Setting
Trap Flag to TRUE for Selected Nodes " \
   -cmd <path>/TrapFlag.sh
-set $OVwSelections

Trap_Flag_Clear.sh
#!/bin/ksh
# Set Trap Flag to false for the selected
nodes.        
name=$(basename $0)
xnmappmon -geometry 680x500 -commandTitle
"$name" \
   -commandHeading "Setting
Trap Flag to FALSE for Selected Nodes " \
   -cmd <path>/TrapFlag.sh
-clear $OVwSelections

Users can execute those functions against
one or more nodes selected on the map. Usually they would only use the
clearing one. But the setting one is handy for testing. 

The job of the TrapFlag.sh script is
to generate an import file that looks like this:
  Selection Name,My_Trap_Flag
  nodename,TRUE  (or FALSE
on the clear)
and run nvdbimport to set the values
for the nodes selected on the map, or indicated by the rule. See the man
page for nvdbimport. There are samples in /usr/OV/conf/nvdbtools. 

Then make your problem smartset include
the criteria " || My_Trap_Flag=TRUE

The operators will know that green things
in the problem smartset are there because of traps. They should look up
the events for that node to see what they are. I usually provide another
function on that reports menu that does a grep in trapd.log for the selected
node. You could do the grep right from the script in /usr/OV/reports/C,
but I usually have it all another one in my custom scripts directory. The
reason for this is so I can offer the same function to web console users
as I do to the Motif users. 

Cordially,

Leslie A. Clark
IBM Global Services - Systems Mgmt & Networking
(248) 552-4968 Voicemail, Fax, Pager

"Freter, Craig" <Craig.Freter@ssa.gov>
Sent by: owner-nv-l@lists.us.ibm.com

01/26/2005 04:16 PM

Please respond to
nv-l

To	"'nv-l@lists.us.ibm.com'" <nv-l@lists.us.ibm.com>
cc
Subject	RE: [nv-l] using SNMP trap to change object attribute

Jason,

I assumed that if we set attribute 'IP Status', then it would get reset
the
next time NetView polls the device. If we set another attribute, then I
assume we will have to reset manually, or use a clearing trap to reset
the
attribute. Can an attribute be set to clear after a certain period of time?

How would you suggest that we do this?

Thanks.


--
Craig Freter
Social Security Administration
Mailto:craig.freter@ssa.gov  
Phone: 410-965-9502
-----Original Message-----
From: owner-nv-l@lists.us.ibm.com [mailto:owner-nv-l@lists.us.ibm.com]
On
Behalf Of Allison, Jason (JALLISON)
Sent: Wednesday, January 26, 2005 4:10 PM
To: nv-l@lists.tivoli.com
Subject: RE: [nv-l] using SNMP trap to change object attribute

It can be done (not sure how with smartsets though).  The theory being
when
a BGP trap arrives, set a certain status or set some other attribute.
However, when do you toggle the other way?  Meaning, after what interval
do
you want a router to be removed from the smartset?

Jason


-----Original Message-----
From: owner-nv-l@lists.us.ibm.com [mailto:owner-nv-l@lists.us.ibm.com]
On
Behalf Of Freter, Craig
Sent: Wednesday, January 26, 2005 4:02 PM
To: 'nv-l@lists.tivoli.com'
Subject: [nv-l] using SNMP trap to change object attribute


Hello,

System information:
OS - AIX 5.1
NetView - 7.1.3
FixPack3

We are currently using a Smartset to view Routers that are either down
or
unreachable. Here is the Smartset rule: (('IP Status'='Critical') || ('IP
Status'='Unreachable')) &&
('isRouter'=True)

Besides "Critical' and 'Unreachable', we would also like this Smartset
to
display routers that send BGP traps to NetView. Is there any way to have
an
incoming SNMP trap change the value of 'IP Status', or any other object
attribute? Is this the wrong use of a Smartset?

Thanks.

--
Craig Freter
Social Security Administration
Mailto:craig.freter@ssa.gov
Phone: 410-965-9502