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-- extracted from rfc1157.txt
RFC1157-SNMP DEFINITIONS ::= BEGIN
IMPORTS
ObjectName, ObjectSyntax, NetworkAddress, IpAddress, TimeTicks
FROM RFC1155-SMI;
-- top-level message
Message ::=
SEQUENCE {
version -- version-1 for this RFC
INTEGER {
version-1(0)
},
community -- community name
OCTET STRING,
data -- e.g., PDUs if trivial
ANY -- authentication is being used
}
-- protocol data units
PDUs ::=
CHOICE {
get-request
GetRequest-PDU,
get-next-request
GetNextRequest-PDU,
get-response
GetResponse-PDU,
set-request
SetRequest-PDU,
trap
Trap-PDU
}
-- PDUs
GetRequest-PDU ::=
[0]
IMPLICIT PDU
GetNextRequest-PDU ::=
[1]
IMPLICIT PDU
GetResponse-PDU ::=
[2]
IMPLICIT PDU
SetRequest-PDU ::=
[3]
IMPLICIT PDU
PDU ::=
SEQUENCE {
request-id
INTEGER,
error-status -- sometimes ignored
INTEGER {
noError(0),
tooBig(1),
noSuchName(2),
badValue(3),
readOnly(4),
genErr(5)
},
error-index -- sometimes ignored
INTEGER,
variable-bindings -- values are sometimes ignored
VarBindList
}
Trap-PDU ::=
[4]
IMPLICIT SEQUENCE {
enterprise -- type of object generating
-- trap, see sysObjectID in [5]
OBJECT IDENTIFIER,
agent-addr -- address of object generating
NetworkAddress, -- trap
generic-trap -- generic trap type
INTEGER {
coldStart(0),
warmStart(1),
linkDown(2),
linkUp(3),
authenticationFailure(4),
egpNeighborLoss(5),
enterpriseSpecific(6)
},
specific-trap -- specific code, present even
INTEGER, -- if generic-trap is not
-- enterpriseSpecific
time-stamp -- time elapsed between the last
TimeTicks, -- (re)initialization of the
-- network
-- entity and the generation of the
-- trap
variable-bindings -- "interesting" information
VarBindList
}
-- variable bindings
VarBind ::=
SEQUENCE {
name
ObjectName,
value
ObjectSyntax
}
VarBindList ::=
SEQUENCE OF
VarBind
END
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