Lync Server Audio/Video Conferencing to Lync Server Audio/Video Authentication connectivity

Microsoft.LS.2013.Monitoring.UnitMonitor.PairedEvent.AVConf.AVMCU_E_MRAS_REQUEST_FAILED_ALARM (UnitMonitor)

Knowledge Base article:

Summary

The Audio/Video Conferencing Server cannot reach the Audio-Video Edge Server.

Causes

The Audio/Video Conferencing Server being unable to reach the Audio-Video Edge Service may be due to network connectivity issues, or the Audio-Video Edge Service pool being unavailable. This will impact Audio/Video Conferencing Server for users joining from outside of the enterprise network. This will also prevent the enforcement of Call Admission Control, if it is deployed. For additional information to troubleshoot the issue, please look at the event AVMCU_E_MRAS_REQUEST_FAILED (Event ID: 32018)

Resolutions

Please ensure connectivity and availability of the Audio-Video Edge Service for the Audio/Video Conferencing Server to verify this issue is corrected. Note: In Case the Audio-Video Edge Service is not deployed, and only a Call Admission Control server is deployed, this issue means the Audio/Video Conferencing Server is unable to reach the Call Admission Control Server.

Element properties:

Target

Microsoft.LS.2013.Component.AVConf

Parent Monitor

System.Health.AvailabilityState

Category

AvailabilityHealth

Enabled

True

Alert Generate

True

Alert Severity

Error

Alert Priority

Normal

Alert Auto Resolve

True

Monitor Type

Microsoft.LS.2013.MonitorType.PairedEvent.Simple

Remotable

True

Accessibility

Public

Alert Message

[LYNC] The Audio/Video Conferencing Server cannot reach the Audio-Video Edge Server.

{0}

Please see the 'Product Knowledge' and the 'Alert Context' tab on Alert Properties view for more information.

RunAs

Default

Source Code:

<UnitMonitor ID="Microsoft.LS.2013.Monitoring.UnitMonitor.PairedEvent.AVConf.AVMCU_E_MRAS_REQUEST_FAILED_ALARM" Accessibility="Public" Enabled="true" Target="Microsoft.LS.2013.Component.AVConf" ParentMonitorID="Health!System.Health.AvailabilityState" Remotable="true" Priority="Normal" TypeID="Microsoft.LS.2013.MonitorType.PairedEvent.Simple" ConfirmDelivery="true">

  <Category>AvailabilityHealth</Category>

  <AlertSettings AlertMessage="Alert_The_Audio_Video_Conferencing_Server_cannot_reach_the_Audio_Video_Edge_Server.">

    <AlertOnState>Error</AlertOnState>

    <AutoResolve>true</AutoResolve>

    <AlertPriority>Normal</AlertPriority>

    <AlertSeverity>Error</AlertSeverity>

    <AlertParameters>

      <AlertParameter1>$Data/Context/EventDescription$</AlertParameter1>

    </AlertParameters>

  </AlertSettings>

  <OperationalStates>

    <OperationalState ID="Microsoft.LS.2013.Monitoring.UnitMonitor.PairedEvent.AVConf.AVMCU_E_MRAS_REQUEST_FAILED_ALARM.Success" MonitorTypeStateID="SuccessEventRaised" HealthState="Success"/>

    <OperationalState ID="Microsoft.LS.2013.Monitoring.UnitMonitor.PairedEvent.AVConf.AVMCU_E_MRAS_REQUEST_FAILED_ALARM.Error" MonitorTypeStateID="ErrorEventRaised" HealthState="Error"/>

  </OperationalStates>

  <Configuration>

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

    <LogName>Lync Server</LogName>

    <SuccessExpression>

      <Or>

        <Expression>

          <And>

            <Expression>

              <SimpleExpression>

                <ValueExpression>

                  <XPathQuery Type="UnsignedInteger">EventDisplayNumber</XPathQuery>

                </ValueExpression>

                <Operator>Equal</Operator>

                <ValueExpression>

                  <Value Type="UnsignedInteger">32076</Value>

                </ValueExpression>

              </SimpleExpression>

            </Expression>

            <Expression>

              <SimpleExpression>

                <ValueExpression>

                  <XPathQuery Type="String">PublisherName</XPathQuery>

                </ValueExpression>

                <Operator>Equal</Operator>

                <ValueExpression>

                  <Value Type="String">LS Audio-Video Conferencing Server</Value>

                </ValueExpression>

              </SimpleExpression>

            </Expression>

          </And>

        </Expression>

        <Expression>

          <And>

            <Expression>

              <SimpleExpression>

                <ValueExpression>

                  <XPathQuery Type="UnsignedInteger">EventDisplayNumber</XPathQuery>

                </ValueExpression>

                <Operator>Equal</Operator>

                <ValueExpression>

                  <Value Type="UnsignedInteger">32001</Value>

                </ValueExpression>

              </SimpleExpression>

            </Expression>

            <Expression>

              <SimpleExpression>

                <ValueExpression>

                  <XPathQuery Type="String">PublisherName</XPathQuery>

                </ValueExpression>

                <Operator>Equal</Operator>

                <ValueExpression>

                  <Value Type="String">LS Audio-Video Conferencing Server</Value>

                </ValueExpression>

              </SimpleExpression>

            </Expression>

          </And>

        </Expression>

      </Or>

    </SuccessExpression>

    <ErrorExpression>

      <And>

        <Expression>

          <SimpleExpression>

            <ValueExpression>

              <XPathQuery Type="UnsignedInteger">EventDisplayNumber</XPathQuery>

            </ValueExpression>

            <Operator>Equal</Operator>

            <ValueExpression>

              <Value Type="UnsignedInteger">32091</Value>

            </ValueExpression>

          </SimpleExpression>

        </Expression>

        <Expression>

          <SimpleExpression>

            <ValueExpression>

              <XPathQuery Type="String">PublisherName</XPathQuery>

            </ValueExpression>

            <Operator>Equal</Operator>

            <ValueExpression>

              <Value Type="String">LS Audio-Video Conferencing Server</Value>

            </ValueExpression>

          </SimpleExpression>

        </Expression>

      </And>

    </ErrorExpression>

  </Configuration>

</UnitMonitor>