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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

4902.0. "Chipcom Total Util Alarm Problems" by OTOOA::DUFF (Peter Duff) Fri Apr 16 1993 23:25




	I have tried setting up an alarm for the following:

	create domain cabot rule chipcom_interface_total_util -
		expression = (snmp cph001 interface 1 total utilization > 80, -
			at every 01:00:00, for duration 00:01:00), -
		category = "CHIPCOM", -
		description = "CHIPCOM Total Utilization Threshold Exceeded", -
		severity = critical

	This rule will either evaluate true or false the first time
	but ALL evaluations after the alarm gives an exception

	"Counters not available for specified time"

	So then I removed the "for duration 00:01:00" from the alarm
	definition and now the rule evaluates true or false more often 
	but I still at times get an execption:
	
	"Counters were not zeroed, yet a counter decreased between samples"

	Is this event normal ? I have not been resetting the counters.

	The CHIPCOMs I am monitoring are on 3 different floors in the 
	building each being connected with Fiber. 

	I also have been getting total utilization calculated in the range  
	of 1000 and 2000 percent? Is this possible ?

	The following are some of the characteristics of the interface. 


show snmp cph001 interface 1 all attr
!                                ifIndex = 1
!                                ifSpeed = 10000000
!                    CounterCreationTime =  5-APR-1993 08:54:57.22
!                                ifDescr = "Chipcom 5100M-MGT v3.11-B using 
!                                          AMD's LANCE"
!                                 ifType = iso88023_csmacd
!                                  ifMtu = 1500


	Peter

	EMS V2.3
	VMS 5.5-2

T.R Title User Personal
Name Date Lines

4902.1 You need more SOI information MOLAR::ROBERTS Keith Roberts - Network Management Applications Mon Apr 19 1993 09:01 16

T.R	Title	User	Personal Name	Date	Lines
4902.1	You need more SOI information	MOLAR::ROBERTS	Keith Roberts - Network Management Applications	`Mon Apr 19 1993 09:01`	16
	I think you need more 'scope of interest' (SOI) information .. Try: at every 01:00:00, for start +00:00:00 duration 00:01:00 This is outlined (somewhere) in the PA manual. By not putting the "for start +00:00:00" an absolute NOW is encoded in the SOI time. This will only work for the first evaluation. But by putting this (silly) for start in, you get relative NOW which is what is needed. Beyond that .. can you do some 'show counters' for the entity? I think I remember something about chipcom counters going decreasing, which isn't right .. and will through PA off. /keith

    I think you need more 'scope of interest' (SOI) information .. Try:
    
      at every 01:00:00, for start +00:00:00 duration 00:01:00
    
    This is outlined (somewhere) in the PA manual.  By not putting
    the "for start +00:00:00" an absolute NOW is encoded in the
    SOI time.  This will only work for the first evaluation.  But
    by putting this (silly) for start in, you get relative NOW which
    is what is needed.
    
    Beyond that .. can you do some 'show counters' for the entity?
    I think I remember something about chipcom counters going decreasing,
    which isn't right .. and will through PA off.
    
    /keith