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Entity State - 2 Entity MIB IETF 55 Motivation State/Status Information is Useful –Display to user –System Debug –Administrative related state is useful in determining the severity of an alarm. –State information such as standby can provide standard way to query or monitor primary & backup hardware Currently no Consistency in State/Status information –Currently there are too many different and inconsistent ways to get object state Recent analyses of 122 notifications in standard MIBs found over 35 state/status objects. There are likely many more.
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Entity State - 2Entity MIB IETF 55
Entity MIB State ExtensionsOverview• Why Entity State Extensions?
– Motivation– Requirements
• Proposed State Extensions
• Moving Forward
Entity State - 3Entity MIB IETF 55
Motivation
• State/Status Information is Useful– Display to user– System Debug– Administrative related state is useful in determining the severity of
an alarm. – State information such as standby can provide standard way to
query or monitor primary & backup hardware
• Currently no Consistency in State/Status information– Currently there are too many different and inconsistent ways to get
object state• Recent analyses of 122 notifications in standard MIBs found over 35
state/status objects. There are likely many more.
Entity State - 4Entity MIB IETF 55
Requirements
• Ability to query state information for a given entity–Must haves
• Administrative state• Operational state
–Nice to haves• Alarm Status • Standby Status
• Re-use existing state models if possible
Entity State - 5Entity MIB IETF 55
Proposed State Extensions - Admin
• Administrative State– This object denotes permission to use or prohibition against
using this NE, imposed through the management system.• Locked• Shutting down• Unlocked
Entity State - 6Entity MIB IETF 55
Proposed State Extensions - Oper
• Operational State– This object denotes whether the NE is physically installed
and working.• Disabled• Enabled
• Usage State– This object denotes whether or not the NE is actively in use
at the specific instance, if so, whether or not it has spare capacity for additional users at that instant• idle• active• busy
Entity State - 7Entity MIB IETF 55
Proposed State Extensions - Alarm
• Alarm Status– This field gives more information on operational state.
• Under repair• Critical• Major• Minor• Alarm outstanding
Entity State - 8Entity MIB IETF 55
Proposed State Extensions – Standby
• Standby– This object is meaningful when the back-up relationship role
exists. It indicates the current role of the network element• hot-standby• cold-standby• providing-service
Entity State - 9Entity MIB IETF 55
Proposed State Extensions - ExamplePort
Container Container
Module
FanFan
PowerSupply
PowerSupply
Admin: shutting DownOper: EnabledUsage: ActiveStandby: Providing Service
Admin: UnlockedOper: EnabledUsage: ActiveStandby: Providing Service
Admin: UnlockedOper: EnabledUsage: ActiveStandby: Providing ServiceAdmin: UnlockedOper: EnabledUsage: ActiveStandby: Providing Service
Admin: UnlockedOper: EnabledUsage: BusyStandby: Providing Service
Admin: UnlockedOper: EnabledUsage: BusyStandby: Providing Service
Admin: lockedOper: EnabledUsage: IdleStandby: Hot Standby
Admin: UnlockedOper: EnabledUsage: IdleStandby: Providing Service
Entity State - 10Entity MIB IETF 55
Moving Forward
• Option 1– Merge into Entity MIB Version 3– Rough consensus from Yokohama meeting
• Option 2– Make separate working group ID
