Performance collection for : TCP_ALLOCATE_PORT_LIMIT_EXCEEDED_SEC

Microsoft.LS.2010.Monitoring.Rule.ReportingPC.AVEdge_TCP_ALLOCATE_PORT_LIMIT_EXCEEDED_SEC (Rule)

Knowledge Base article:

Summary

This rule collects this performance counter for reporting/troubleshooting purposes for the counter: TCP_ALLOCATE_PORT_LIMIT_EXCEEDED_SEC

The per-second rate of allocate requests over TCP that exceeded the port limit.

Causes

This error occurs when there is an unexpectedly high rate of requests over TCP for ports associated with the same user ID. This could be an indication of an attempt to misuse the A/V Edge Server.

Resolutions

Check that the profile of network traffic to the A/V Edge Server is in line with expected usage. A network level trace can be used to determine if there is unusual amount of traffic originating from a single source. If the situation persists then enable tracing to identify the originator of messages requesting more than the permitted number of ports to allow further troubleshooting of the cause.

Element properties:

Target	Microsoft.LS.2010.Component.AVEdge
Category	PerformanceCollection
Enabled	True
Instance Name	LS:A/V Edge - 01 - TCP Counters
Counter Name	A/V Edge - 010 - Allocate Requests Exceeding Port Limit/sec
Frequency	900
Alert Generate	False
Remotable	True

Member Modules:

ID	Module Type	TypeId	RunAs
CollectPerfCounter	DataSource	System.Performance.OptimizedDataProvider	Default
WriteToDB	WriteAction	Microsoft.SystemCenter.CollectPerformanceData	Default
WriteToDW	WriteAction	Microsoft.SystemCenter.DataWarehouse.PublishPerformanceData	Default

Source Code:

<Rule ID="Microsoft.LS.2010.Monitoring.Rule.ReportingPC.AVEdge_TCP_ALLOCATE_PORT_LIMIT_EXCEEDED_SEC" Enabled="true" Target="Microsoft.LS.2010.Component.AVEdge" ConfirmDelivery="false" Remotable="true" Priority="Normal" DiscardLevel="100">

  <Category>PerformanceCollection</Category>

  <DataSources>

    <DataSource ID="CollectPerfCounter" TypeID="SystemPerf!System.Performance.OptimizedDataProvider">

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

      <CounterName>A/V Edge - 010 - Allocate Requests Exceeding Port Limit/sec</CounterName>

      <ObjectName>LS:A/V Edge - 01 - TCP Counters</ObjectName>

      <InstanceName/>

      <AllInstances>true</AllInstances>

      <Frequency>900</Frequency>

      <Tolerance>5</Tolerance>

      <ToleranceType>Absolute</ToleranceType>

      <MaximumSampleSeparation>4</MaximumSampleSeparation>

    </DataSource>

  </DataSources>

  <WriteActions>

    <WriteAction ID="WriteToDB" TypeID="SC!Microsoft.SystemCenter.CollectPerformanceData"/>

    <WriteAction ID="WriteToDW" TypeID="SCDW!Microsoft.SystemCenter.DataWarehouse.PublishPerformanceData"/>

  </WriteActions>

</Rule>