Class compute:PCIeFatalReceiveStats (CONCRETE)

Class ID:884
Encrypted: false - Exportable: false - Persistent: false
Privileges: [admin, operations, read-only]
SNMP OID: .1.3.6.1.4.1.9.9.719.1.21.36

NO COMMENTS


Naming Rules
RN FORMAT: pciefat-receive-stats

    [1] PREFIX=pciefat-receive-stats


DN FORMAT: 

[0] sys/chassis-[id]/blade-[slotId]/board/pciefat-receive-stats

[1] sys/rack-unit-[id]/board/pciefat-receive-stats

[2] sys/chassis-[id]/cartridge-[slotId]/server-[serverInstanceId]/board/pciefat-receive-stats

                



Containers Hierarchies
top:Root This class represents the root element in the object hierarchy. All managed objects in the system are descendants of the Root element.
 ├
top:System Provides general information about this system, such as the name, IP address and current time.
 
 ├
compute:RackUnit A physical compute RackUnit. Physical compute item representing a Rack mountable unit.
 
 
 ├
compute:Board Motherboard contained by physical compute item.
 
 
 
 ├
compute:PCIeFatalReceiveStats
top:Root This class represents the root element in the object hierarchy. All managed objects in the system are descendants of the Root element.
 ├
top:System Provides general information about this system, such as the name, IP address and current time.
 
 ├
equipment:Chassis A physical unit that can accomodate multiple blade servers. For example, the Cisco UCS 5108 Blade Server Chassis is six rack units (6RU) high, can mount in an industry-standard 19-inch rack and uses front-to-back cooling.
 
 
 ├
compute:Blade A physical compute blade. Physical compute item in blade form factor.
 
 
 
 ├
compute:Board Motherboard contained by physical compute item.
 
 
 
 
 ├
compute:PCIeFatalReceiveStats
top:Root This class represents the root element in the object hierarchy. All managed objects in the system are descendants of the Root element.
 ├
top:System Provides general information about this system, such as the name, IP address and current time.
 
 ├
equipment:Chassis A physical unit that can accomodate multiple blade servers. For example, the Cisco UCS 5108 Blade Server Chassis is six rack units (6RU) high, can mount in an industry-standard 19-inch rack and uses front-to-back cooling.
 
 
 ├
compute:Cartridge A physical compute cartridge.
 
 
 
 ├
compute:ServerUnit A server instance on a cartridge.
 
 
 
 
 ├
compute:Board Motherboard contained by physical compute item.
 
 
 
 
 
 ├
compute:PCIeFatalReceiveStats


Contained Hierarchy
compute:PCIeFatalReceiveStats

Inheritance
stats:Item
 ├
stats:Curr
 
 ├
compute:PCIeFatalReceiveStats

Events
                



Faults
                



Fsms
                



Stats Info

Domain: server
Threshold Policy Container:
org:Org 


Properties Summary
Defined in: compute:PCIeFatalReceiveStats
scalar:Uint32 bufferOverflowErrors  (compute:PCIeFatalReceiveStats:bufferOverflowErrors)
           NO COMMENTS
scalar:Uint32 bufferOverflowErrors15Min  (compute:PCIeFatalReceiveStats:bufferOverflowErrors15Min)
           NO COMMENTS
scalar:Uint32 bufferOverflowErrors15MinH  (compute:PCIeFatalReceiveStats:bufferOverflowErrors15MinH)
           NO COMMENTS
scalar:Uint32 bufferOverflowErrors1Day  (compute:PCIeFatalReceiveStats:bufferOverflowErrors1Day)
           NO COMMENTS
scalar:Uint32 bufferOverflowErrors1DayH  (compute:PCIeFatalReceiveStats:bufferOverflowErrors1DayH)
           NO COMMENTS
scalar:Uint32 bufferOverflowErrors1Hour  (compute:PCIeFatalReceiveStats:bufferOverflowErrors1Hour)
           NO COMMENTS
scalar:Uint32 bufferOverflowErrors1HourH  (compute:PCIeFatalReceiveStats:bufferOverflowErrors1HourH)
           NO COMMENTS
scalar:Uint32 bufferOverflowErrors1Week  (compute:PCIeFatalReceiveStats:bufferOverflowErrors1Week)
           NO COMMENTS
scalar:Uint32 bufferOverflowErrors1WeekH  (compute:PCIeFatalReceiveStats:bufferOverflowErrors1WeekH)
           NO COMMENTS
scalar:Uint32 bufferOverflowErrors2Weeks  (compute:PCIeFatalReceiveStats:bufferOverflowErrors2Weeks)
           NO COMMENTS
scalar:Uint32 bufferOverflowErrors2WeeksH  (compute:PCIeFatalReceiveStats:bufferOverflowErrors2WeeksH)
           NO COMMENTS
scalar:Uint32 errFatalErrors  (compute:PCIeFatalReceiveStats:errFatalErrors)
           NO COMMENTS
scalar:Uint32 errFatalErrors15Min  (compute:PCIeFatalReceiveStats:errFatalErrors15Min)
           NO COMMENTS
scalar:Uint32 errFatalErrors15MinH  (compute:PCIeFatalReceiveStats:errFatalErrors15MinH)
           NO COMMENTS
scalar:Uint32 errFatalErrors1Day  (compute:PCIeFatalReceiveStats:errFatalErrors1Day)
           NO COMMENTS
scalar:Uint32 errFatalErrors1DayH  (compute:PCIeFatalReceiveStats:errFatalErrors1DayH)
           NO COMMENTS
scalar:Uint32 errFatalErrors1Hour  (compute:PCIeFatalReceiveStats:errFatalErrors1Hour)
           NO COMMENTS
scalar:Uint32 errFatalErrors1HourH  (compute:PCIeFatalReceiveStats:errFatalErrors1HourH)
           NO COMMENTS
scalar:Uint32 errFatalErrors1Week  (compute:PCIeFatalReceiveStats:errFatalErrors1Week)
           NO COMMENTS
scalar:Uint32 errFatalErrors1WeekH  (compute:PCIeFatalReceiveStats:errFatalErrors1WeekH)
           NO COMMENTS
scalar:Uint32 errFatalErrors2Weeks  (compute:PCIeFatalReceiveStats:errFatalErrors2Weeks)
           NO COMMENTS
scalar:Uint32 errFatalErrors2WeeksH  (compute:PCIeFatalReceiveStats:errFatalErrors2WeeksH)
           NO COMMENTS
scalar:Uint32 errNonFatalErrors  (compute:PCIeFatalReceiveStats:errNonFatalErrors)
           NO COMMENTS
scalar:Uint32 errNonFatalErrors15Min  (compute:PCIeFatalReceiveStats:errNonFatalErrors15Min)
           NO COMMENTS
scalar:Uint32 errNonFatalErrors15MinH  (compute:PCIeFatalReceiveStats:errNonFatalErrors15MinH)
           NO COMMENTS
scalar:Uint32 errNonFatalErrors1Day  (compute:PCIeFatalReceiveStats:errNonFatalErrors1Day)
           NO COMMENTS
scalar:Uint32 errNonFatalErrors1DayH  (compute:PCIeFatalReceiveStats:errNonFatalErrors1DayH)
           NO COMMENTS
scalar:Uint32 errNonFatalErrors1Hour  (compute:PCIeFatalReceiveStats:errNonFatalErrors1Hour)
           NO COMMENTS
scalar:Uint32 errNonFatalErrors1HourH  (compute:PCIeFatalReceiveStats:errNonFatalErrors1HourH)
           NO COMMENTS
scalar:Uint32 errNonFatalErrors1Week  (compute:PCIeFatalReceiveStats:errNonFatalErrors1Week)
           NO COMMENTS
scalar:Uint32 errNonFatalErrors1WeekH  (compute:PCIeFatalReceiveStats:errNonFatalErrors1WeekH)
           NO COMMENTS
scalar:Uint32 errNonFatalErrors2Weeks  (compute:PCIeFatalReceiveStats:errNonFatalErrors2Weeks)
           NO COMMENTS
scalar:Uint32 errNonFatalErrors2WeeksH  (compute:PCIeFatalReceiveStats:errNonFatalErrors2WeeksH)
           NO COMMENTS
scalar:Bitmask64 thresholded  (compute:PCIeFatalReceiveStats:thresholded)
           Overrides:stats:Item:thresholded
           NO COMMENTS
scalar:Uint32 unsupportedRequestErrors  (compute:PCIeFatalReceiveStats:unsupportedRequestErrors)
           NO COMMENTS
scalar:Uint32 unsupportedRequestErrors15Min  (compute:PCIeFatalReceiveStats:unsupportedRequestErrors15Min)
           NO COMMENTS
scalar:Uint32 unsupportedRequestErrors15MinH  (compute:PCIeFatalReceiveStats:unsupportedRequestErrors15MinH)
           NO COMMENTS
scalar:Uint32 unsupportedRequestErrors1Day  (compute:PCIeFatalReceiveStats:unsupportedRequestErrors1Day)
           NO COMMENTS
scalar:Uint32 unsupportedRequestErrors1DayH  (compute:PCIeFatalReceiveStats:unsupportedRequestErrors1DayH)
           NO COMMENTS
scalar:Uint32 unsupportedRequestErrors1Hour  (compute:PCIeFatalReceiveStats:unsupportedRequestErrors1Hour)
           NO COMMENTS
scalar:Uint32 unsupportedRequestErrors1HourH  (compute:PCIeFatalReceiveStats:unsupportedRequestErrors1HourH)
           NO COMMENTS
scalar:Uint32 unsupportedRequestErrors1Week  (compute:PCIeFatalReceiveStats:unsupportedRequestErrors1Week)
           NO COMMENTS
scalar:Uint32 unsupportedRequestErrors1WeekH  (compute:PCIeFatalReceiveStats:unsupportedRequestErrors1WeekH)
           NO COMMENTS
scalar:Uint32 unsupportedRequestErrors2Weeks  (compute:PCIeFatalReceiveStats:unsupportedRequestErrors2Weeks)
           NO COMMENTS
scalar:Uint32 unsupportedRequestErrors2WeeksH  (compute:PCIeFatalReceiveStats:unsupportedRequestErrors2WeeksH)
           NO COMMENTS
Defined in: stats:Curr
scalar:Uint32 intervals  (stats:Curr:intervals)
           override name="type">
scalar:Uint32 update  (stats:Curr:update)
           Internal field where: bits 0-15 contain current number of updates within interval bits 16-31 contain current history ID
Defined in: stats:Item
scalar:Bool suspect  (stats:Item:suspect)
           NO COMMENTS
scalar:Date timeCollected  (stats:Item:timeCollected)
           property name="type" type="Type" owner="management" mod="implicit" /
Defined in: mo:TopProps
mo:ModificationChildAction
          scalar:Bitmask32
childAction  (mo:TopProps:childAction)
          
reference:Object dn  (mo:TopProps:dn)
           The Distinguished Name (dn) unambiguously identifies an object in the system.
The dn provides a fully qualified path from the top of the object tree, all the way to the object. It is built as a sequence of relative names separated by the "/" character.
For example:
< ... dn = "sys/chassis-5/blade-2/adaptor-1" />
reference:RN rn  (mo:TopProps:rn)
           The Relative Name (rn) uniquely identifies an object within a given context.
Note that a dn is comprised of a sequence of relative names. For example, the context "sys/chassis-1/blade-1/adaptor-1/host-eth-2" can be thought of as the following expression:
dn = <root object>/{rn}/{rn}/{rn}/{rn}/{rn}.
The rn can then be used to identify the object (for instance, "adaptor-1") within the context:
<... rn ="../" />
mo:InstSaclType
          scalar:Bitmask8
sacl  (mo:TopProps:sacl)
           The system acl property for each Managed Object. br/> This property is a 8 bit mask and supports the following values :-
a: del
b: mod
c: addchild
d: cascade

By default all Managed Objects have the following permissions
a: del
b: mod
c: addchild
This property is persisted in the db. If this property has a value none
it means, the user has read only permissions on this object.
mo:ModificationStatus
          scalar:Bitmask32
status  (mo:TopProps:status)
           This property controls the life cycle of a managed object

Properties Detail

bufferOverflowErrors

Type: scalar:Uint32
Units: null
Encrypted: false
Access: implicit
Category: PeriodicCounter
Property Validators:
Comments:
NO COMMENTS

bufferOverflowErrors15Min

Type: scalar:Uint32
Units: null
Encrypted: false
Access: oper
Category: TopLevelRegular
Property Validators:
Comments:
NO COMMENTS

bufferOverflowErrors15MinH

Type: scalar:Uint32
Units: null
Encrypted: false
Access: oper
Category: TopLevelRegular
Property Validators:
Comments:
NO COMMENTS

bufferOverflowErrors1Day

Type: scalar:Uint32
Units: null
Encrypted: false
Access: oper
Category: TopLevelRegular
Property Validators:
Comments:
NO COMMENTS

bufferOverflowErrors1DayH

Type: scalar:Uint32
Units: null
Encrypted: false
Access: oper
Category: TopLevelRegular
Property Validators:
Comments:
NO COMMENTS

bufferOverflowErrors1Hour

Type: scalar:Uint32
Units: null
Encrypted: false
Access: implicit
Category: TopLevelRegular
Property Validators:
Comments:
NO COMMENTS

bufferOverflowErrors1HourH

Type: scalar:Uint32
Units: null
Encrypted: false
Access: oper
Category: TopLevelRegular
Property Validators:
Comments:
NO COMMENTS

bufferOverflowErrors1Week

Type: scalar:Uint32
Units: null
Encrypted: false
Access: implicit
Category: TopLevelRegular
Property Validators:
Comments:
NO COMMENTS

bufferOverflowErrors1WeekH

Type: scalar:Uint32
Units: null
Encrypted: false
Access: oper
Category: TopLevelRegular
Property Validators:
Comments:
NO COMMENTS

bufferOverflowErrors2Weeks

Type: scalar:Uint32
Units: null
Encrypted: false
Access: oper
Category: TopLevelRegular
Property Validators:
Comments:
NO COMMENTS

bufferOverflowErrors2WeeksH

Type: scalar:Uint32
Units: null
Encrypted: false
Access: oper
Category: TopLevelRegular
Property Validators:
Comments:
NO COMMENTS

childAction

Type: mo:ModificationChildAction
Primitive Type: scalar:Bitmask32
Units: null
Encrypted: false
Access: implicit
Category: TopLevelChildAction
Property Validators:
Comments:
Constants
deleteAll 16384u NO COMMENTS
ignore 4096u NO COMMENTS
deleteNonPresent 8192u NO COMMENTS
DEFAULT 0 This type is used to

dn

Type: reference:Object
Units: null
Encrypted: false
Access: implicit
Category: TopLevelDn
Property Validators:
Comments:
The Distinguished Name (dn) unambiguously identifies an object in the system.
The dn provides a fully qualified path from the top of the object tree, all the way to the object. It is built as a sequence of relative names separated by the "/" character.
For example:
< ... dn = "sys/chassis-5/blade-2/adaptor-1" />

errFatalErrors

Type: scalar:Uint32
Units: null
Encrypted: false
Access: implicit
Category: PeriodicCounter
Property Validators:
Comments:
NO COMMENTS

errFatalErrors15Min

Type: scalar:Uint32
Units: null
Encrypted: false
Access: oper
Category: TopLevelRegular
Property Validators:
Comments:
NO COMMENTS

errFatalErrors15MinH

Type: scalar:Uint32
Units: null
Encrypted: false
Access: oper
Category: TopLevelRegular
Property Validators:
Comments:
NO COMMENTS

errFatalErrors1Day

Type: scalar:Uint32
Units: null
Encrypted: false
Access: oper
Category: TopLevelRegular
Property Validators:
Comments:
NO COMMENTS

errFatalErrors1DayH

Type: scalar:Uint32
Units: null
Encrypted: false
Access: oper
Category: TopLevelRegular
Property Validators:
Comments:
NO COMMENTS

errFatalErrors1Hour

Type: scalar:Uint32
Units: null
Encrypted: false
Access: implicit
Category: TopLevelRegular
Property Validators:
Comments:
NO COMMENTS

errFatalErrors1HourH

Type: scalar:Uint32
Units: null
Encrypted: false
Access: oper
Category: TopLevelRegular
Property Validators:
Comments:
NO COMMENTS

errFatalErrors1Week

Type: scalar:Uint32
Units: null
Encrypted: false
Access: implicit
Category: TopLevelRegular
Property Validators:
Comments:
NO COMMENTS

errFatalErrors1WeekH

Type: scalar:Uint32
Units: null
Encrypted: false
Access: oper
Category: TopLevelRegular
Property Validators:
Comments:
NO COMMENTS

errFatalErrors2Weeks

Type: scalar:Uint32
Units: null
Encrypted: false
Access: oper
Category: TopLevelRegular
Property Validators:
Comments:
NO COMMENTS

errFatalErrors2WeeksH

Type: scalar:Uint32
Units: null
Encrypted: false
Access: oper
Category: TopLevelRegular
Property Validators:
Comments:
NO COMMENTS

errNonFatalErrors

Type: scalar:Uint32
Units: null
Encrypted: false
Access: implicit
Category: PeriodicCounter
Property Validators:
Comments:
NO COMMENTS

errNonFatalErrors15Min

Type: scalar:Uint32
Units: null
Encrypted: false
Access: oper
Category: TopLevelRegular
Property Validators:
Comments:
NO COMMENTS

errNonFatalErrors15MinH

Type: scalar:Uint32
Units: null
Encrypted: false
Access: oper
Category: TopLevelRegular
Property Validators:
Comments:
NO COMMENTS

errNonFatalErrors1Day

Type: scalar:Uint32
Units: null
Encrypted: false
Access: oper
Category: TopLevelRegular
Property Validators:
Comments:
NO COMMENTS

errNonFatalErrors1DayH

Type: scalar:Uint32
Units: null
Encrypted: false
Access: oper
Category: TopLevelRegular
Property Validators:
Comments:
NO COMMENTS

errNonFatalErrors1Hour

Type: scalar:Uint32
Units: null
Encrypted: false
Access: implicit
Category: TopLevelRegular
Property Validators:
Comments:
NO COMMENTS

errNonFatalErrors1HourH

Type: scalar:Uint32
Units: null
Encrypted: false
Access: oper
Category: TopLevelRegular
Property Validators:
Comments:
NO COMMENTS

errNonFatalErrors1Week

Type: scalar:Uint32
Units: null
Encrypted: false
Access: implicit
Category: TopLevelRegular
Property Validators:
Comments:
NO COMMENTS

errNonFatalErrors1WeekH

Type: scalar:Uint32
Units: null
Encrypted: false
Access: oper
Category: TopLevelRegular
Property Validators:
Comments:
NO COMMENTS

errNonFatalErrors2Weeks

Type: scalar:Uint32
Units: null
Encrypted: false
Access: oper
Category: TopLevelRegular
Property Validators:
Comments:
NO COMMENTS

errNonFatalErrors2WeeksH

Type: scalar:Uint32
Units: null
Encrypted: false
Access: oper
Category: TopLevelRegular
Property Validators:
Comments:
NO COMMENTS

intervals

Type: scalar:Uint32
Units: null
Encrypted: false
Access: implicit
Category: TopLevelRegular
Property Validators:
Comments:
override name="type">

rn

Type: reference:RN
Units: null
Encrypted: false
Access: implicit
Category: TopLevelRn
Property Validators:
Comments:
The Relative Name (rn) uniquely identifies an object within a given context.
Note that a dn is comprised of a sequence of relative names. For example, the context "sys/chassis-1/blade-1/adaptor-1/host-eth-2" can be thought of as the following expression:
dn = <root object>/{rn}/{rn}/{rn}/{rn}/{rn}.
The rn can then be used to identify the object (for instance, "adaptor-1") within the context:
<... rn ="../" />

sacl

Type: mo:InstSaclType
Primitive Type: scalar:Bitmask8
Units: null
Encrypted: false
Access: implicit
Category: TopLevelSacl
Property Validators:
Comments:
The system acl property for each Managed Object. br/> This property is a 8 bit mask and supports the following values :-
a: del
b: mod
c: addchild
d: cascade

By default all Managed Objects have the following permissions
a: del
b: mod
c: addchild
This property is persisted in the db. If this property has a value none
it means, the user has read only permissions on this object.
Constants
none 0 NO COMMENTS
del 1 NO COMMENTS
mod 2 NO COMMENTS
addchild 4 NO COMMENTS
cascade 8 NO COMMENTS
DEFAULT 0 NO COMMENTS

status

Type: mo:ModificationStatus
Primitive Type: scalar:Bitmask32
Units: null
Encrypted: false
Access: implicit
Category: TopLevelStatus
Property Validators:
Comments:
This property controls the life cycle of a managed object
Constants
removed 16u In a setter method: specifies that an object should be removed.
In the return value of a setter method: indicates that an object has been removed.
created 2u In a setter method: specifies that an object should be created. An error is returned if the object already exists.
In the return value of a setter method: indicates that an object has been created.
modified 4u In a setter method: specifies that an object should be modified
In the return value of a setter method: indicates that an object has been modified.
deleted 8u In a setter method: specifies that an object should be deleted.
In the return value of a setter method: indicates that an object has been deleted.
DEFAULT 0 This type controls the life cycle of objects passed in the XML API.

When used in a setter method (such as configConfMo), the ModificationStatus specifies whether an object should be created, modified, deleted or removed.
In the return value of a setter method, the ModificationStatus indicates the actual operation that was performed. For example, the ModificationStatus is set to "created" if the object was created. The ModificationStatus is not set if the object was neither created, modified, deleted or removed.

When invoking a setter method, the ModificationStatus is optional:
If a setter method such as configConfMo is invoked and the ModificationStatus is not set, the system automatically determines if the object should be created or modified.


suspect

Type: scalar:Bool
Units: null
Encrypted: false
Access: implicit
Category: TopLevelRegular
Property Validators:
Comments:
NO COMMENTS
Constants
yes true NO COMMENTS
no false NO COMMENTS

thresholded

Type: scalar:Bitmask64
Overrides:stats:Item:thresholded
Units: null
Encrypted: false
Access: implicit
Category: TopLevelRegular
Property Validators:
Comments:
NO COMMENTS
Constants
bufferOverflowErrors 1ull NO COMMENTS
errFatalErrors 2ull NO COMMENTS
errNonFatalErrors 4ull NO COMMENTS
unsupportedRequestErrors 8ull NO COMMENTS
DEFAULT 0 NO COMMENTS

timeCollected

Type: scalar:Date
Units: null
Encrypted: false
Access: implicit
Category: TopLevelRegular
Property Validators:
Comments:
property name="type" type="Type" owner="management" mod="implicit" /

unsupportedRequestErrors

Type: scalar:Uint32
Units: null
Encrypted: false
Access: implicit
Category: PeriodicCounter
Property Validators:
Comments:
NO COMMENTS

unsupportedRequestErrors15Min

Type: scalar:Uint32
Units: null
Encrypted: false
Access: oper
Category: TopLevelRegular
Property Validators:
Comments:
NO COMMENTS

unsupportedRequestErrors15MinH

Type: scalar:Uint32
Units: null
Encrypted: false
Access: oper
Category: TopLevelRegular
Property Validators:
Comments:
NO COMMENTS

unsupportedRequestErrors1Day

Type: scalar:Uint32
Units: null
Encrypted: false
Access: oper
Category: TopLevelRegular
Property Validators:
Comments:
NO COMMENTS

unsupportedRequestErrors1DayH

Type: scalar:Uint32
Units: null
Encrypted: false
Access: oper
Category: TopLevelRegular
Property Validators:
Comments:
NO COMMENTS

unsupportedRequestErrors1Hour

Type: scalar:Uint32
Units: null
Encrypted: false
Access: implicit
Category: TopLevelRegular
Property Validators:
Comments:
NO COMMENTS

unsupportedRequestErrors1HourH

Type: scalar:Uint32
Units: null
Encrypted: false
Access: oper
Category: TopLevelRegular
Property Validators:
Comments:
NO COMMENTS

unsupportedRequestErrors1Week

Type: scalar:Uint32
Units: null
Encrypted: false
Access: implicit
Category: TopLevelRegular
Property Validators:
Comments:
NO COMMENTS

unsupportedRequestErrors1WeekH

Type: scalar:Uint32
Units: null
Encrypted: false
Access: oper
Category: TopLevelRegular
Property Validators:
Comments:
NO COMMENTS

unsupportedRequestErrors2Weeks

Type: scalar:Uint32
Units: null
Encrypted: false
Access: oper
Category: TopLevelRegular
Property Validators:
Comments:
NO COMMENTS

unsupportedRequestErrors2WeeksH

Type: scalar:Uint32
Units: null
Encrypted: false
Access: oper
Category: TopLevelRegular
Property Validators:
Comments:
NO COMMENTS

update

Type: scalar:Uint32
Units: null
Encrypted: false
Access: implicit
Category: TopLevelRegular
Property Validators:
Comments:
Internal field where: bits 0-15 contain current number of updates within interval bits 16-31 contain current history ID