Cisco Wireless: Cipher Ccmp replays discarded errors Health Monitor

Jalasoft.Xian.SmartManagementPacks.CiscoWireless.CipherCcmpReplaysDiscardedErrors.1.1 (AggregateMonitor)

This monitor catches Xian events that notifies when the Cipher Ccmp replays discarded errors if has changed its state.

Knowledge Base article:

Summary

Number of Cipher CCMP replaying discarded errors is over threshold.

The number of Cipher CCMP replays discarded errors since device re-started is above the maximum threshold configured in Xian Network Manager 2012.

Causes

Excessive amount of fragments discarded due to mismatch in ciphering when data has been altered in transmission.

Resolutions

The rejection of unicast fragments when Cipher CCMP errors are identified is the desired procedure; if error excess affects optimal performance, encryption configuration could be reconsidered.

Additional

Monitors received unicast fragments discarded by replay mechanism from a Cisco Wireless interface.

Element properties:

Target

Jalasoft.Xian.Common.Elements.ThirdParty.Cisco.JsXCiscoWirelessInterfaceElement

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

Cipher Ccmp replays discarded errors Alert

{0}

Source Code:

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

  <Category>StateCollection</Category>

  <AlertSettings AlertMessage="CipherCcmpReplaysDiscardedErrors_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>