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Conference azur::mcc

Title:DECmcc user notes file. Does not replace IPMT.
Notice:Use IPMT for problems. Newsletter location in note 6187
Moderator:TAEC::BEROUD
Created:Mon Aug 21 1989
Last Modified:Wed Jun 04 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:6497
Total number of notes:27359

2814.0. "Node reachability status events how to toggle severity" by PJVAX::LAMB (Peter Lamb - GSG Santa Clara) Wed Apr 22 1992 03:20

    Hello,
    
    Having now worked a fair amount with decnet event sinks I think I
    now understand it well enough to ask the following question...
    
    Given that I am sinked to a DECnet IV router (from an Ultrix WS running
    1.2.7) and have targeted all "Node reachability status" messages to be
    automatically sent to the correct node, my question is is there any way
    to toggle the severity of the alarm based on the status of this event
    ie. reachable/unreachable???
    
    Note: the node reachability status is event 4.14 and seems to be the
    only event my router reports when a endnode in the same area as the
    router goes up or down.  I would have thought I would also see
    adjacency up/down messages but can't figure out how to get my router
    to generate them.
    
    Thanks and regards,
    
    Peter Lamb
    
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2814.1see discussion in 2405.*DADA::DITMARSPeteMon Apr 27 1992 21:2323
>my question is is there any way
>    to toggle the severity of the alarm based on the status of this event
>    ie. reachable/unreachable???

The short answer: there is not a clean way with the T1.2.7 kit.

Please participate in 2405.* 

Event 4.14 is even worse than the events discussed in 2405, because the
interesting information (up/down) is in the text of the event.

Here's a real hack:

	1) define a "null-domain" rule watching for event 4.14 which kicks off
	   a batch job command procedure
	2) the command procedure parses the event text and invokes the
	   data collector to send an event "Node reachability change" targetted
	   to the correct entity with the correct severity (e.g. Major if
	   the text says the node isn't reachable, Clear if the text says the
	   node is reachable again)

You'll have to be judicious about where to employ this, as it sounds fairly
expensive.  
2814.2adjacent node eventsTOOK::CALLANDERMCC = My Constant CompanionWed Jun 17 1992 17:192
have you tried looking for the node4 <router> circuit <> adjacent node <>
circuit up and down events? they can be useful in this area.