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A MIB (Management Information Base) is a structured document that defines the data a device exposes over SNMP — things like interface counters, system uptime, or CPU load. Each module declares a set of named objects, organized into a tree.

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SNMP (Simple Network Management Protocol) is how network devices — routers, switches, servers — report status and statistics to monitoring tools. It's the protocol; MIBs are the vocabulary it uses to describe what's being asked for.

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An OID (Object Identifier) is the numeric address of one piece of data in a MIB — a dotted sequence like 1.3.6.1.2.1.1.1, read from the root of a global tree down to one specific object. Names are easier to read; OIDs are what's actually sent over the wire.

Try it: sysDescr (1.3.6.1.2.1.1.1) →

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iso/org/dod/internet/private/enterprises/.8595/.3653/hitronemtaDev/.2/htEmtaDevGR909TestType

htEmtaDevGR909TestType

OBJECT-TYPE

1.3.6.1.4.1.8595.3653.9.2.3

Access

read-write

Status

current

Source

HITRON-EMTA-DEV-MIB

Sub-identifiers

Description

The type of GR909 test. The readback value of this OID would always be 0,disabled. If users want to perform a particular test item, the type needs to be selected first and applied. The test result would be updated to the hitronEmtaGR909TestResult OID and kept until the other test or disabled is applied. This OID value and the result OID values would not be stored in the NVRAM. If the hitronEmtaGR909Enable is set to false, no test here would be effective.

Syntax

INTEGER { disabled(0), line-voltage-test(1), receiver-off-hook-test(2), ringer-equivalence-number-test(3), resistive-fault-test(4), other-basic-tests(5), loopback-test(6), dc-feed-self-test(7), dc-voltage-self-test(8), ringing-self-test(9), on-off-hook-self-test(10) }