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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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HH3C-SRV6-MIB

8 objects

This MIB file provides information about Segment Routing over IPv6 (SRv6).

Imported Objects

HH3C-OID-MIB	hh3cCommon
INET-ADDRESS-MIB	InetAddressIPv6 InetAddressPrefixLength
SNMPv2-SMI	MODULE-IDENTITY NOTIFICATION-TYPE OBJECT-TYPE

OID	Name	Access	Status	Description
1.3.6.1.4.1.25506.2.197	Identityhh3cSrv6			This MIB file provides information about Segment Routing over IPv6 (SRv6).
1.3.6.1.4.1.25506.2.197.0	Nodehh3cSrv6Notifications
1.3.6.1.4.1.25506.2.197.0.1	Notificationhh3cSrv6SidRouteConflict		current	A hh3cSrv6SidRouteConflict notification signifies that an local SRv6 SID is conflicted with routes in routing table.
1.3.6.1.4.1.25506.2.197.0.2	Notificationhh3cSrv6SidRouteConflictClear		current	A hh3cSrv6SidRouteConflictClear notification signifies that the conflict between the local SRv6 SID and routes in routing table has been resolved.
1.3.6.1.4.1.25506.2.197.1	Nodehh3cSrv6Objects
1.3.6.1.4.1.25506.2.197.1.1	Nodehh3cSrv6NotificationEntry
1.3.6.1.4.1.25506.2.197.1.1.1	Scalarhh3cSrv6NotificationSid	accessible-for-notify	current	The local SRv6 SID.
1.3.6.1.4.1.25506.2.197.1.1.2	Scalarhh3cSrv6NotificationSidPrefixLen	accessible-for-notify	current	The prefix length of the local SRv6 SID.