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Re: [nv-l] NetView 7.1 SNMP support questions

To: nv-l@lists.tivoli.com
Subject: Re: [nv-l] NetView 7.1 SNMP support questions
From: "James Shanks" <jshanks@us.ibm.com>
Date: Tue, 5 Mar 2002 10:23:04 -0500
Terry -

I am afraid things are not as simple as you want them to be.
The answers are not blanket like this.

You must distinguish platforms, and then you must also distinguish 
functions in order to answer the question.   "Support" is too broad a 
term.

NetView 7.1 has a new MIB loader and browser that will read and query SNMP 
V2 MIBs.  This is the new java stuff.  It also has a new mib2trap option. 
The old xnmloadmib2 and xnmbrowser2 (on UNIX), and the old loadmibv2 and 
browserv2 on NT, are still there also but not on the menus any more.  It 
is deprecated, but still shipped for those who wish to use it.   The same 
is true for the old standalone versions of mib2trap.  They are still there 
but deprecated.  They will probably be removed in the future.  This is 
true across all platforms. 

 The new Java MIB browser is only tool in NetView which will do SNMP V2 
gets and sets. All other functions in NetView will use SNMP V1 format 
only.  The line commands snmpget, snmpset, and so on use SNMP V1 format as 
well. This is the short answer to your question #2 -- only when you use 
the new Java MIB browser to do them.

This new loader and browser are still not integrated with snmpCollect on 
UNIX nor on NT.  If you want to collect on V2 MIB variables, then you must 
edit snmpCol.conf by hand to make that happen.   No special support has 
been added for SNMP V2 data types, such as Counter32 or Counter 64.  You 
can treat Counter32 variables as simple counters, but snmpCollect will not 
be able to handle Counter64 variables.

MLM does not do anything special for SNMP V2 either.  I believe it will 
handle the collections a bit better, but I don't believe that it supports 
Counter64 variables either.  It also does all its gets and sets in SNMP V1 
format only.  And it has no support for receiving SNMP V2 traps.  They 
will be ignored.   So if you include MLM in your question #1, the answer 
is false.

NetView for NT cannot handle SNMP V2 traps either, because the MS Trap 
Service does not support them, and they feed them to us.
Only trapd on UNIX can receive SNMP V2 traps.  We have not provided a 
utility to send them either.  snmptrap on UNIX (and nvsnmptrap on NT) use 
SNMP V1 format for their traps.

The answer to number three, in my opinion, is "yes".  But you have to 
replace the snmpd daemon on the box with another one.  We have no way to 
be configured to use an alternate while the original one is still there. 
We use whatever is installed and talks to use when we send our queries . 
Many people have reported success using other agents on Solaris and NT. I 
believe Empire has one. 


James Shanks
Level 3 Support  for Tivoli NetView for UNIX and NT
Tivoli Software / IBM Software Group
 





Terry E Simpson/Falls Church/IBM@IBMUS
03/05/2002 09:30 AM

 
        To:     nv-l@lists.tivoli.com
        cc: 
        Subject:        [nv-l] NetView 7.1 SNMP support questions

 

I believe I already know the answers to the following questions, but just
want to verify with the list........
1)  NetView 7.1 (including MLM support) supports SNMP V2? (Yes)
2) Does Netview 7.1 support SNMP V2 for gets and sets? (yes)
3) Can you change NetView to use a different snmp deamon than the native
snmp deamon for the O/S? (No)

Regards,
T. Simpson
Sr. I/T Software Specialist
IBM Software Group


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