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SNMP Number Spaces
There are three SNMP number spaces administered by IANA, one for
security models, another for message processing models, and a third
for SnmpEngineID formats [RFC2571].
Security Models
The SnmpSecurityModel TEXTUAL-CONVENTION values managed by IANA are in
the range from 0 to 255 inclusive, and are reserved for standards-
track Security Models. If this range should in the future prove
insufficient, an enterprise number can be allocated to obtain an
additional 255 possible values.
There are several values of securityModel defined for use with SNMP or
reserved for use with supporting MIB objects. They are as follows:
Value Description Reference
----- ----------- ---------
0 reserved for 'any' [RFC2571]
1 reserved for SNMPv1 [RFC2571]
2 reserved for SNMPv2c [RFC2571]
3 User-Based Security Model (USM) [RFC2571]
Message Processing Models
The SnmpMessageProcessingModel TEXTUAL-CONVENTION values managed by
IANA are in the range 0 to 255, inclusive. Each value uniquely
identifies a standards-track Message Processing Model of the Message
Processing Subsystem within a SNMP Management Architecture.
Should this range prove insufficient in the future, an enterprise
number may be obtained for the standards committee to get an
additional 256 possible values.
There are several values of messageProcessingModel defined for use
with SNMP. They are as follows:
Value Description Reference
----- ----------- ---------
0 reserved for SNMPv1 [RFC2571]
1 reserved for SNMPv2c [RFC2571]
2 reserved for SNMPv2u and SNMPv2* [RFC2571]
3 reserved for SNMPv3 [RFC2571]
SnmpEngineID Formats
The SnmpEngineID TEXTUAL-CONVENTION's fifth octet contains a format
identifier. managed by IANA are in the range 6 to 127, inclusive.
Each value uniquely identifies a standards-track SnmpEngineID format.
References
----------
[RFC2571] Harrington, D., et al., "An Architecture for Describing SNMP
Management Frameworks", RFC 2571, April 1999.
People
------
(last updated May 10 2001)
[]
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