InformRequest-PDU

E201384

InformRequest-PDU is an SNMP protocol data unit used by an SNMP entity to send trap-like notifications that require acknowledgment from another SNMP manager.

All labels observed (2)

Label Occurrences
InformRequest-PDU canonical 2
InformRequest-PDU for SNMPv2 1

How this entity was disambiguated

Statements (48)

Predicate Object
instanceOf PDU type defined in SNMPv2
SNMP protocol data unit
acknowledgmentType reliable notification with acknowledgment
belongsTo SNMP protocol operations
canBeSecuredBy SNMPv3 security model
carries variable bindings describing the notification
category confirmed notification
contrastedWith unconfirmed notification such as SNMPv2-Trap-PDU
definedIn Protocol Operations for Version 2 of the Simple Network Management Protocol (SNMPv2)
RFC 1905
Simple Network Management Protocol Version 2 (SNMPv2)
differsFrom SNMPv2-Trap-PDU by requiring an acknowledgment
direction manager-to-manager communication
encodedUsing ASN.1
hasField error-index
error-status
request-id
variable-bindings
hasPurpose to allow one SNMP manager to notify another SNMP manager of management information
to send notifications that require acknowledgment
hasRole manager-to-manager notification mechanism
hasSemantic inform notification
introducedWith SNMPv2 protocol enhancements
notificationType trap-like notification
operatesAt application layer of the OSI model
reliabilityComparedTo more reliable than SNMPv1 Trap-PDU
reliabilityMechanism request-id matching with response
requires response PDU from receiving SNMP manager
requiresAcknowledgmentFrom receiving SNMP manager
requiresProcessingBy SNMP protocol engine
responseExpected GetResponse-PDU
sentBy SNMP manager
sentTo SNMP manager
serializedWith BER (Basic Encoding Rules)
similarTo SNMPv2-Trap-PDU
transportAgnostic true
triggeredBy management events detected by an SNMP manager
usedFor reliable event reporting between SNMP managers
usedIn SNMPv2
SNMPv3
usedInContext event notification
fault management
network management
usedOver UDP
other SNMP-supported transport protocols
usedToReport error conditions
significant management events
state changes

How these facts were elicited

Referenced by (3)

Full triples — surface form annotated when it differs from this entity's canonical label.

RFC 1905 defines InformRequest-PDU
RFC 3416 defines InformRequest-PDU
RFC 1446 defines InformRequest-PDU for SNMPv2
linked to: InformRequest-PDU