IBM Enterprise Console manual Object Identifier to Name Translation, name objectidentifier

source=NET;

sub_source=SNMP-TRAP; origin=$SOURCE_ADDR;

END

CLASS Authentication_Failure_Cisco

SELECT

1:ATTR(=,$ENTERPRISE), VALUE(PREFIX, "1.3.6.1.4.1.9");

2:$TYPE = 4;

3:ATTR(=,"authAddr");

FETCH

1:IPNAME($SOURCE_ADDR);

MAP

hostname = $F1; originating_address = $V3;

END

#For Cisco routers, because we know the interface generating the trap,

#we map ’linkUp’ traps to ’linkDown’ CLOSED events

CLASS Link_Down_Cisco

SELECT

1:ATTR(=,$ENTERPRISE), VALUE(PREFIX, "1.3.6.1.4.1.9");

2:$TYPE = 3;

3:ATTR(=,"ifIndex");

4:ATTR(=,"ifDescr");

5:ATTR(=,"ifType");

6:ATTR(=,"locIfReason");

FETCH

1:IPNAME($SOURCE_ADDR);

MAP

hostname = $F1; sub_origin = $V4; status = CLOSED; interface_index = $V3; interface_description = $V4; interface_type = $V5; reason = $V6;

END

Object Identifier to Name Translation

The selection of an attribute is based on its name. With adapters that receive SNMP trap messages, the standard way of naming attributes is to use object identifiers (OIDs). For example, SNMP variable ifDescr is named 1.3.6.1.2.1.2.2.1.2. Using SNMP object identifiers in SELECT statements is not very convenient. Additionally, since the SNMP variable ifDescr is part of a table, it will be indexed by the interface number. If the interface number is 2, the received object identifier will be 1.3.6.1.2.1.2.2.1.2.2. Without some knowledge of the Management Information Base (MIB), the SNMP adapter has no way to translate an object identifier into a more understandable name, or to extract key parts from an object identifier.

An object identifier file (tecad_adaptername.oid) for SNMP-based adapters contains OID-to-name mappings for some SNMP variables. You can add or modify this file as needed. The format of an object identifier file is:

name object_identifier

For example:

"authAddr" "1.3.6.1.4.1.9.2.1.5"

"ifDescr" "1.3.6.1.2.1.2.2.1.2"

160IBM Tivoli Enterprise Console: Adapters Guide