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What's a MIB?

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/.6527/.3/.1/.2/.91/vRtrLdpNgSessionParamsTable/vRtrLdpNgSessionParamsEntry/vRtrLdpNgSessPeIDMacFlushInterop

vRtrLdpNgSessPeIDMacFlushInterop

OBJECT-TYPE

1.3.6.1.4.1.6527.3.1.2.91.8.1.17

Access

read-create

Status

current

Source

TIMETRA-LDP-NG-MIB

Sub-identifiers

Description

The value of vRtrLdpNgSessPeIDMacFlushInterop specifies whether LDP will react to and send the non-standard PE-ID TLV (type 0x405) in an address withdraw message to effect 'flush-all-from-me' behavior. It is used to provide interoperability with other vendors that use this TLV for the MAC flush mechanism. Only FEC type 128 is currently supported. Peer LDP sessions must be manually configured towards the PEs requiring support for this TLV. When the value of vRtrLdpNgSessPeIDMacFlushInterop is set to 'true', the receipt of an address withdraw message with empty MAC list including the non-standard TLV will trigger 'flush-all-from-me' behavior instead of the normal 'flush-all-but-mine'. The TLV will be included in any forwarding towards like-configured peers. When the value of vRtrLdpNgSessPeIDMacFlushInterop is set to 'false', the non-standard TLV will be ignored and will not be included in any address withdraw messages sent to the peer.

Syntax

TruthValue