SNMP Trap Data Is Misaligned in SnmpNotification Objects (324189)


The information in this article applies to:

  • Microsoft Windows Management Instrumentation 1.5, when used with:
    • the operating system: Microsoft Windows 2000
    • the operating system: Microsoft Windows XP
This article was previously published under Q324189

SYMPTOMS

In Windows Management Instrumentation (WMI), SNMP trap data is misaligned in SnmpNotification objects. This occurs if MIB objects that are mapped in the VARIABLES clause of the trap definition (TRAP-TYPE) are not present, or are out of order in the variable-bindings field of the SNMP trap Protocol Data Unit (PDU).

CAUSE

According to Request for Comments (RFC) 1215 ("A Convention for Defining Traps for Use with the SNMP"), the VARIABLES clause defines the ordered sequence of MIB objects that are contained in every instance of the trap type. Each variable is placed, in order, in the variable-bindings field of the SNMP trap PDU. Although many SNMP browsers permit deviations from RFC 1215, the SNMP provider in WMI does not permit missing MIB objects in a trap.
Modification Type:MinorLast Reviewed:8/19/2003
Keywords:kbprb KB324189
©2003 Microsoft Corporation. All rights reserved.