Cisco Switch: Ethernet deferred transmissions Health Monitor

Jalasoft.Xian.SmartManagementPacks.CiscoSwitches.EthernetDeferredTransmissions.1.1 (AggregateMonitor)

This monitor catches Xian events that notifies when the Ethernet deferred transmissions if has changed its state.

Knowledge Base article:

Summary

Number of ethernet deferred transmissions is over threshold.

The number of frames that were delayed is above the maximum threshold configured in Xian Network Manager 2012.

Causes

The traffic load destined for this switch is excessive and is causing the frames to be discarded.

Resolutions

Reduce the switch load if you evidence an increasing number of packets in this field. You may need to modify your network topology to reduce the traffic load for this switch.

Additional

Monitors the number of frames for which the first transmission attempt on a particular interface is delayed because the medium is busy. The count represented by an instance of this object does not include frames involved in collisions.

Element properties:

Target

Jalasoft.Xian.Common.Elements.ThirdParty.Cisco.JsXCiscoSwitchInterfaceElement

Parent Monitor

System.Health.PerformanceState

Algorithm

WorstOf

Category

StateCollection

Enabled

True

Alert Generate

True

Alert Severity

MatchMonitorHealth

Alert Priority

Low

Alert Auto Resolve

True

Remotable

True

Accessibility

Public

Alert Message

Ethernet deferred transmissions Alert

{0}

Source Code:

<AggregateMonitor ID="Jalasoft.Xian.SmartManagementPacks.CiscoSwitches.EthernetDeferredTransmissions.1.1" Accessibility="Public" Enabled="true" Target="ThirdParty_Cisco!Jalasoft.Xian.Common.Elements.ThirdParty.Cisco.JsXCiscoSwitchInterfaceElement" ParentMonitorID="SystemHealth!System.Health.PerformanceState" Remotable="true" Priority="Normal">

  <Category>StateCollection</Category>

  <AlertSettings AlertMessage="EthernetDeferredTransmissions_AlertMessage">

    <AlertOnState>Warning</AlertOnState>

    <AutoResolve>true</AutoResolve>

    <AlertPriority>Low</AlertPriority>

    <AlertSeverity>MatchMonitorHealth</AlertSeverity>

    <AlertParameters>

      <AlertParameter1>$Data/Context/Params/Param[3]$</AlertParameter1>

    </AlertParameters>

  </AlertSettings>

  <Algorithm>WorstOf</Algorithm>

</AggregateMonitor>