Contemporary-control-systems Compact Managed Switches Software Manual for Web B Manual de usuario descargar pdf (Pagina 77)

TD020851-0MG

5.2.6.2 Traps for SNMPv1

5.2.6.2.1 Format of Trap Messages

Each trap message contains a header and a protocol data unit (PDU).

5.2.6.2.2 Trap Header

The fields in the trap message header contain:

Version — 0, indicating SNMP version 1

Community string — The community string, which authorizes NMS access to the

Trap Protocol

Data Unit (PDU)

The fields in the PDU contain:

PDU type — 4 (indicates version 1 trap PDU)

Enterprise — Identifies the type of managed object generating the trap. For switch traps, the

value is as follows:

Generic Trap — value is SNMP (1.3.6.1.2.1.11)

Agent-address — The IP address of the originating agent

Generic-trap — 0 to 6, indicating the generic trap type. See Section 5.2.6.2.3 for descriptions

of the generic-trap types.

Specific-trap — Indicates the specific trap type. This field is only interpreted when the generic

trap type is 6, enterpriseSpecific.

Time-stamp — Seconds since last power cycle

Variable bindings — One or more OIDs (object identifiers) paired with the corresponding values.

A variable is an instance of a managed object. These pairings provide more information about

the event.

Figure 50 — Format of the Trap Message for SNMP Version 1

1 2 ... 72 73 74 75 76 77 78 79 80 81 82 83

Sin comentarios

Contemporary-control-systems Compact Managed Switches Software Manual for Web B Manual de usuario Pagina 77