What netmon does is ping interfaces -- that is how status is determined. If the
interface does not respond within the time interval specified in xnmsnmpconf,
then netmon calls ovwdb to mark the interface down in the object database and
sends a trap (Interface down 58916867) to trapd, who passes it along. ovtopmd
picks it up and changes the topology database as well. If the GUI is up, then
ipmap does the same and changes what you see. If not, ipmap synchronizes the
map with the
databases as soon as the GUI is started (you see the "Synchronizing" message at
the bottom of the map on start up).
If there is only one interface on the box then netmon will immediately issue a
Node Down trap as well. You will see the Interface down/Node down pair
back-to-back in trapd.log. If there is more than one interface on the box, you
will not get Node Down until they are all down. If any remain up, you get Node
Marginal. When the interface responds, the reverse is true, Interface Up
(58916867) is issued, and then Node Up or Node Marginal as appropriate.
With 5.1.2 you will also get Node up/Node down to reflect their current
condition if you do a demand poll. But this change from prior releases is not
popular and will be removed in subsequent code.
You can take a look in the back of the Admin Guide for a list of all the traps
NetView (netmon for the most part) currently issues.
James Shanks
Tivoli (NetView for UNIX) L3 Support
"Clay David (rti1dwc)" <rti1dwc@ISMD.UPS.COM> on 12/02/99 08:08:45 AM
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: James Shanks/Tivoli Systems)
Subject: Re: Severity Level For Events
So that I understand this correctly, If netview determines a node is down
because the node no longer answers ping request ( I assume netview is using
the ping command to check to see if a node is still up running or not ) it
will create an event for the IBM_NDWN_EV in the event window? Thanks for the
info on the paging I understand it now. Thanks again for all your help. I am
sure these are silly questions that I ask but I would rather understand it
fully than just trying to wing it....
Thanks,
Dave
-----Original Message-----
From: James Shanks [mailto:James_Shanks@TIVOLI.COM]
Sent: Wednesday, December 01, 1999 5:55 PM
To: NV-L@UCSBVM.UCSB.EDU
Subject: Re: Severity Level For Events
Are you asking which event to use? The standard NetView event is
IBM_NDWN_EV
(58916865) and you put that in a Trap Setting node for the ruleset.
The pager icon is capable of sending numeric pages, but it stores that in
the
security database with the rest of the user information. Type in a user
name
in the pager icon dialog box and another dialog box will pop up where you
specify pager type and other details. But the pager code in the ruleset is
expecting you to use a carrier with a PIN. If you want to direct dial a
numeric
pager you would have to do that in an Action node using the nvpage command
or a
script. Most folks who do this stuff do not use a numeric pager because you
cannot send meaningful information unless you get very creative. I did
hear of
one customer who had an elaborate series of codes which told the user what
the
problem was but I don't know if he stuck with it for long. I understand
that
eventually his page recipients just called in and asked what was going on
rather
than try to remember or refer to their list of codes.
James Shanks
Tivoli (NetView for UNIX) L3 Support
"Clay David (rti1dwc)" <rti1dwc@ISMD.UPS.COM> on 12/01/99 05:32:21 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: James Shanks/Tivoli Systems)
Subject: Re: Severity Level For Events
Thanks. One other question-I don't seem to see a way to configure a ruleset
for an event where a node is no longer reachable ( meaning its down ). In
that case I would want to have that event paging someone with the
information. Also I have only an numeric pager but when looking at the
"Pager Action Node" template it seems to want to send an alphanumeric
message. Is there a way to send a numeric page via the "Pager Action Node"?
Thanks again.
Dave UPS
-----Original Message-----
From: James Shanks [mailto:James_Shanks@TIVOLI.COM]
Sent: Wednesday, December 01, 1999 4:13 PM
To: NV-L@UCSBVM.UCSB.EDU
Subject: Re: Severity Level For Events
They are whatever you want them to be. Basically severity levels offer you,
the
user, a way to segregate and color code the events you see to make them more
manageable. You can change them however you want them. The colors are
matched
in /usr/OV/app-defaults/Nvevents. You can change that for system-wide
effect,
or copy that file into your $HOME directory and it will affect only your
event
windows.
James Shanks
Tivoli (NetView for UNIX) L3 Support
"Clay David (rti1dwc)" <rti1dwc@ISMD.UPS.COM> on 12/01/99 04:05:35 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: James Shanks/Tivoli Systems)
Subject: Severity Level For Events
Would anyone like to share what the meanings are for the event dialog box
configurations : the selections are cleared, intermediate, warning, minor,
critical, major. The last three seem reasonable but what is cleared and
intermediate severity?
Thanks,
Dave
|