RE: [nv-l] ? about specific trap numbers

["Glen Warn" <Glen.Warn@pemcocorp.com>]

Brilliant!  Obviously, I need to brush up on my math - but I was able to follow your explanation and leverage it for my issue.

 

This was exactly what I needed - thx very much,

 

Glen Warn

PEMCO Corporation Computer Services (PCCS)

glen.warn@pemcocorp.com

206-628-5770

 

---

From: Philippe Menard [mailto:PME@fr.ibm.com]
Sent: Monday, August 08, 2005 4:03 AM
To: Glen Warn
Subject: Fw: [nv-l] ? about specific trap numbers

Glen, 

your problem is related to signed vs unsigned 32 bit 
integers. 
In other words : 2^32 = 
4294967296 = 3221232503 + 1073734793.

Microsoft rightly considers that specific = 3221232503 is a legal 
value, 
since the SNMP RFCs explain that 
specific is an unsigned integer. 

The 
NetView programmers made a small mistake by using signed integers. 
They made the same mistake when handling MIB 
variables, etc. 
I still have a few 
scripts which add 2^32 in case of negative values. 

About 2 years ago I opened a ticket about SNMP having no 
negative integers. 
Your findings prove 
that this bug has not been fixed in every case. 

Hope this helps, 
Philippe. 

----- 
Forwarded by Philippe Menard/France/Contr/IBM on 08/08/2005 10:54 -----

"Glen Warn" <Glen.Warn@pemcocorp.com>
Sent by: owner-nv-l@lists.us.ibm.com

06/08/2005 02:40

Please respond to
nv-l

To	<nv-l@lists.us.ibm.com>
cc
Subject	[nv-l] ? about specific trap numbers

NV 7.1.4 FP3 RH Linux AS 2.1 
  
I am trying to modify some event configurations and 
have a puzzling problem.  Microsoft gives me the decimal "specific trap" 
number I will see and I can convert that number to HEX (which I can see is 
referenced in the control desk) but the actual events I have to specify are 
neither.  One example of my problem is this: 
SPECIFIC   : -1073734793 (hex: c0001b77) 
Decimal: 3221232503 
  
I do not understand how the c0001b77 is converted into 
-1073734793.  The only way I've been able to figure these out so far has 
been to create an event that forces this trap.  Some of the remaining ones 
(3221232481 specifically) I cannot force out and don't know how to calculate the 
Netview specific. 
  
Any ideas?? 
  
Glen Warn 
PEMCO Corporation Computer 
Services (PCCS) 
glen.warn@pemcocorp.com 
206-628-5770