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8/28/2008
SNMP uses three separate formats to convey management information:
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Structure of Management Information (SMI). SMI
contains a set of rules that outline how to create a MIB and how to
define managed objects that are accessed through the SNMP protocol.
SMI is defined in RFC 1155, RFC 1212, and RFC 1215.
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Abstract Syntax Notation One (ASN.1). ASN.1 defines
the format of SNMP messages and managed objects by using an
unambiguous data description format that is human as well as
machine readable.
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Basic Encoding Rules (BER). BER is used to encode
SNMP into a format that is suitable for transmission across a
network.