RE: [NV-L] False Alarms

[Denis Peuziat <dpeuziat@amadeus.com>]

Hi,

If you have network performance issues,
and while you figure out where the problem lies, you can still configure
an event rule that will buffers  Router Down events for each of your
routers until the next polling result and only issue a router down when
2 (or more) consecutive failures are detected.

That's what I used to do to prevent
unwanted Node Down events caused by network latencies.

Then maybe if the router you are polling
are far from your Netview server, you can use an MLM to poll these routers,
which will give you better response time.

Hope that helps,

Denis

"Santhanakrishnan Janakiraman (IT Services),        Chennai" <santhanakrishnanjn@hcl.in>

To	"Tivoli NetView Discussions" <nv-l@lists.ca.ibm.com>
cc
bcc
Subject	RE: [NV-L] False Alarms

"Santhanakrishnan Janakiraman (IT Services),        Chennai" <santhanakrishnanjn@hcl.in>  

Please respond to : Tivoli NetView Discussions <nv-l@lists.ca.ibm.com>

Sent by: nv-l-bounces@lists.ca.ibm.com  
08/06/2007 11:19

Hi,
 
Actually i have modified the polling
interval as 
 
Timeout--------------------------------Retry------------------------------Polling
5.0        
                     
       10            
                     
   5m
2.0        
                     
       10            
                     
   5m
10.0        
                     
       5            
                     
   2m
 
These are the different combination
of polling interval iam using. The RFI Mode i have set is RFI. 
 
I have set the RFI Ambiguous non-responding
router interface in unmanaged subnet as : Unreachable
 
The trap iam getting when i cant
reach a router (Due to slow network), 
 
trapd.log.2007158184455:1181216893
3  Thu Jun 07 17:18:13 2007 10.108.1.2        
       N Network Down
trapd.log.2007158184455:1181216893 3  Thu Jun 07 17:18:13 2007 10.108.1.2
               N Interface Loopback99
down.
trapd.log.2007158184455:1181216893 3  Thu Jun 07 17:18:13 2007 10.108.1.2
               N Segment 10.108.1.2.Segment1
Down.
trapd.log.2007158184455:1181216893 3  Thu Jun 07 17:18:13 2007 10.108.1.2
               N Interface GigabitEthernet0/
 down.
trapd.log.2007158184455:1181216893 3  Thu Jun 07 17:18:13 2007 10.108.1.2
               N Interface Vlan2
down.
trapd.log.2007158184455:1181216893 3  Thu Jun 07 17:18:13 2007 10.108.1.2
               N Interface Vlan2
down.
trapd.log.2007158184455:1181216893 3  Thu Jun 07 17:18:13 2007 10.108.1.2
               N Interface Vlan2
down.
trapd.log.2007158184455:1181216893 3  Thu Jun 07 17:18:13 2007 10.108.1.2
               N Interface Loopback0
down.
trapd.log.2007158184455:1181216893 3  Thu Jun 07 17:18:13 2007 10.108.1.2
               N Router Down.
trapd.log.2007159082618:1181227423 3  Thu Jun 07 20:13:43 2007 10.108.1.2
               N Interface GigabitEthernet0/
 up.
trapd.log.2007159082618:1181227423 3  Thu Jun 07 20:13:43 2007 10.108.1.2
               N Interface Loopback0
up.
trapd.log.2007159082618:1181227423 3  Thu Jun 07 20:13:43 2007 10.108.1.2
               N Interface Vlan2
up.
trapd.log.2007159082618:1181227423 3  Thu Jun 07 20:13:43 2007 10.108.1.2
               N Interface Vlan2
up.
trapd.log.2007159082618:1181227423 3  Thu Jun 07 20:13:43 2007 10.108.1.2
               N Interface Vlan2
up.
trapd.log.2007159082618:1181227423 3  Thu Jun 07 20:13:43 2007 10.108.1.2
               N Network Up
trapd.log.2007159082618:1181227423 3  Thu Jun 07 20:13:43 2007 10.108.1.2
               N Interface Loopback99
up.
trapd.log.2007159082618:1181227423 7  Thu Jun 07 20:13:43 2007 10.108.1.2
               N Segment 10.108.1.2.Segment1
Up.
trapd.log.2007159082618:1181227423 7  Thu Jun 07 20:13:43 2007 10.108.1.2
               N Network 10.108.1.2
Marginal
trapd.log.2007159082618:1181227423 7  Thu Jun 07 20:13:43 2007 10.108.1.2
               N Network 10.108.1.2
Up.
trapd.log.2007159082618:1181227423 3  Thu Jun 07 20:13:43 2007 10.108.1.2
               N Router Up.
trapd.log.2007159082618:1181268428 3  Fri Jun 08 07:37:08 2007 10.108.1.2
               N Network Down
trapd.log.2007159082618:1181268429 3  Fri Jun 08 07:37:09 2007 10.108.1.2
               N Interface Loopback99
down.
trapd.log.2007159082618:1181268429 3  Fri Jun 08 07:37:09 2007 10.108.1.2
               N Segment 10.108.1.2.Segment1
Down.
trapd.log.2007159082618:1181268429 3  Fri Jun 08 07:37:09 2007 10.108.1.2
               N Interface GigabitEthernet0/
 down.
trapd.log.2007159082618:1181268429 3  Fri Jun 08 07:37:09 2007 10.108.1.2
               N Interface Vlan2
down.
trapd.log.2007159082618:1181268429 3  Fri Jun 08 07:37:09 2007 10.108.1.2
               N Interface Vlan2
down.
trapd.log.2007159082618:1181268429 3  Fri Jun 08 07:37:09 2007 10.108.1.2
               N Interface Vlan2
down.
trapd.log.2007159082618:1181268429 3  Fri Jun 08 07:37:09 2007 10.108.1.2
               N Interface Loopback0
down.
trapd.log.2007159082618:1181268429 3  Fri Jun 08 07:37:09 2007 10.108.1.2
               N Router Down.
 
Please advice me on this.

Thanks & Regards

SanthanaKrishnan.J

Office: 044-28221129 Ext-2206

Mobile: +91- 9840943639

 

 

---

From: nv-l-bounces@lists.ca.ibm.com
[mailto:nv-l-bounces@lists.ca.ibm.com] On Behalf Of Denis Peuziat
Sent: Friday, June 08, 2007 1:41 PM
To: Tivoli NetView Discussions
Subject: Re: [NV-L] False Alarms


Hi, 

Maybe you need first to give more details on these "false alarms".
Is it  Node down events caused by network latencies?

Give more details like trapd.log extract for example, and I'm sure you'll
get an answer to your problem 

Denis

"Santhanakrishnan Janakiraman (IT Services),        Chennai" <santhanakrishnanjn@hcl.in>

To	"Tivoli NetView Discussions" <nv-l@lists.ca.ibm.com>
cc
bcc
Subject	[NV-L] False Alarms

"Santhanakrishnan Janakiraman (IT Services),        Chennai" <santhanakrishnanjn@hcl.in>  

Please respond to : Tivoli NetView Discussions <nv-l@lists.ca.ibm.com>

Sent by: nv-l-bounces@lists.ca.ibm.com  
08/06/2007 09:59

Hi,

I am getting False Alarms in netview, i get this whenever the network is slow. I worked with all sort of polling interval. What i need to do. Please advice me on this.

Thanks & Regards
SanthanaKrishnan.J
Office: 044-28221129 Ext-2206
Mobile: +91- 9840943639

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