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TCPv4 每秒重新傳輸的區段數

Microsoft.Windows.Server.10.0.TCPv4.SegmentsRetransmittedPerSec (UnitMonitor)

監視 TCPv4\Segments Retransmitted/sec 效能計數器。

Knowledge Base article:

摘要

此監視器會追蹤每秒透過 TCPv4 重新傳輸的區段數。當重新傳輸的區段數超過 TCPv4\Segments Retransmitted/sec 效能計數器的閾值時，監視器會切換為警告狀態。

原因

重新傳輸會以資料中記錄為曾經傳送的位元數進行測量。當重新傳輸的區段數不多時，網路效能並不會受到影響。不過，過多重新傳輸則代表由連線失敗、連線重設或硬體問題導致的顯著頻寬縮減。

解決方式

調查導致連線失敗的網路因素，並解決發現的問題。硬體問體也可能導致高重新傳輸率。因此，我們有必要使用處理器計數器等系統計數器深入調查。使用基準值來決定這些計數器何時會超出範圍並可能表示發生問題。

Element properties:

TargetMicrosoft.Windows.Server.10.0.OperatingSystem
Parent MonitorSystem.Health.PerformanceState
CategoryPerformanceHealth
EnabledFalse
Instance NameTCPv4
Counter NameSegments Retransmitted/sec
Frequency300
Alert GenerateTrue
Alert SeverityWarning
Alert PriorityNormal
Alert Auto ResolveTrue
Monitor TypeSystem.Performance.ConsecutiveSamplesThreshold
RemotableTrue
AccessibilityPublic
Alert Message
TCPv4 每秒重新傳輸的區段數過多。
已超過 TCPv4\Segments Retransmitted/sec 效能計數器的閾值。
RunAsDefault

Source Code:

<UnitMonitor ID="Microsoft.Windows.Server.10.0.TCPv4.SegmentsRetransmittedPerSec" Accessibility="Public" Enabled="false" Target="ServervNext!Microsoft.Windows.Server.10.0.OperatingSystem" ParentMonitorID="SystemHealth!System.Health.PerformanceState" Remotable="true" Priority="Normal" TypeID="SystemPerf!System.Performance.ConsecutiveSamplesThreshold" ConfirmDelivery="false">

  <Category>PerformanceHealth</Category>

  <AlertSettings AlertMessage="Microsoft.Windows.Server.10.0.TCPv4.SegmentsRetransmittedPerSec.AlertMessage">

    <AlertOnState>Warning</AlertOnState>

    <AutoResolve>true</AutoResolve>

    <AlertPriority>Normal</AlertPriority>

    <AlertSeverity>Warning</AlertSeverity>

    <AlertParameters/>

  </AlertSettings>

  <OperationalStates>

    <OperationalState ID="OverThreshold" MonitorTypeStateID="ConditionTrue" HealthState="Warning"/>

    <OperationalState ID="UnderThreshold" MonitorTypeStateID="ConditionFalse" HealthState="Success"/>

  </OperationalStates>

  <Configuration>

    <ComputerName>$Target/Host/Property[Type="Windows!Microsoft.Windows.Computer"]/NetworkName$</ComputerName>

    <CounterName>Segments Retransmitted/sec</CounterName>

    <ObjectName>TCPv4</ObjectName>

    <InstanceName/>

    <Frequency>300</Frequency>

    <Threshold>10</Threshold>

    <Direction>greaterequal</Direction>

    <NumSamples>12</NumSamples>

  </Configuration>

</UnitMonitor>