[Search for users] [Overall Top Noters] [List of all Conferences] [Download this site]

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

2727.0. "SET psProcessStatus problem when using SNMP AM & SUN MIB" by CUJO::HILL (Dan Hill-Net.Mgt.-Customer Resident) Thu Apr 09 1992 04:10

    A couple of problems, the first being a minor nit:
    	(VMS V5.5, Motif V1.1, DECmcc X1.2.15 with latest trap image
    	 containing support for CMU agent)
    
    1.  When registering an SNMP entity, the "Add Entity" window pops up
        with the input field lines only, no discriptive text to the left
    	of the lines.  After minimizing/maximizing the window, everything
    	was OK.
    
    2.	I was using a SUN agent along with the SUN MIB as described in 
    	SUN_MIBDEF.TXT (dated 29-MAR-1992).  It worked nicely.  My
    	compliments.  We also tested SNMP traps from the agent.  The
    	SNMP AM worked very well.
    
    	My problem occurs when trying to SET a CHARACTERISTIC attribute
    	via the IMPM.  The SNMP AM reports back with success when I click
    	on the START button.  It even shows the value of the attribute
    	psProcessStatus as 1 (was 0).  But when I click on SHOW CHAR,
    	the value is returned as 0.
    
    	What's going on?  Could it be that the agent is instantly setting
    	the value back to the original "0" value before I can issue the 
    	show command?  Any clues?
    
    Thanks,
    Dan
T.RTitleUserPersonal
Name
DateLines
2727.1YAHEY::BOSEThu Apr 09 1992 19:5238
            <<< NOTED::DISK$NOTES4:[NOTES$LIBRARY_4OF5]MCC.NOTE;3 >>>
                 -< DECmcc Network Management Product Family >-
================================================================================
Note 2727.1 SET psProcessStatus problem when using SNMP AM & SUN MIB      1 of 1
YAHEY::BOSE                                          31 lines   9-APR-1992 15:49
--------------------------------------------------------------------------------

>> 2. .......

>>    	My problem occurs when trying to SET a CHARACTERISTIC attribute
>>    	via the IMPM.  The SNMP AM reports back with success when I click
>>    	on the START button.  It even shows the value of the attribute
>>    	psProcessStatus as 1 (was 0).  But when I click on SHOW CHAR,
>>    	the value is returned as 0.
 	
	In SNMP protocol, when a management station makes a set-request
	the agent returns either a get-response with an error status or
	a get-response identical to the request,(if the set succeeded).
	In the latter case, the SNMP AM takes the variable value in the 
	response buffer and returns it as the new value of the attribute
	you are trying to do a set on. (Thus you see the value of the
	attribute psProcessStatus as 1).

	From all this, two things seem possible :

	1) The agent did not really update the variable, but returned 
	success status.

	or
	2) The agent immediately reset the variable to its old value.
	(Something you might have guessed already).

	If you really want to get to the bottom of this problem, you will
	be better off pursuing the matter with the folks responsible for the
	SUN agent.

	rahul