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Cisco PIX Firewall: Available memory buffer 80-byte blocks Health Monitor

Jalasoft.Xian.SmartManagementPacks.CiscoPix.Available80blocks.1.1 (AggregateMonitor)

This monitor catches Xian events that notifies when the Available memory buffer 80-byte blocks has changed its state.

Knowledge Base article:

Summary

Number of available memory buffer 80-byte blocks is over/under threshold.

Over threshold: The number of available memory buffer 80-byte blocks is above the maximum threshold configured in Xian Network Manager 2012.

Under threshold: The number of available memory buffer 80-byte blocks is below the minimum threshold configured in Xian Network Manager 2012.

Causes

Over threshold: There is less than expected failover calling messages and TCP intercepts them to generate acknowledgment packets using the available 80-byte blocks.

Under threshold: There is less than expected failover calling messages and TCP intercepts them to generate acknowledgment packets using the available 80-byte blocks.

Resolutions

Over threshold: The maximum number of blocks is carved out of memory at bootup and typically does not change. Use the show blocks command to monitor the current block memory and optimize the use.

Under threshold: The maximum number of blocks is carved out of memory at bootup and typically does not change. If block memory has been depleted, this is a transient situation and the PIX Firewall should recover. Use the show blocks command to monitor the current block memory.

Additional

Monitors the current number of available 80-byte blocks in memory buffer.

Element properties:

TargetJalasoft.Xian.Common.Elements.ThirdParty.Cisco.JsXCiscoPixFirewallSnmpDeviceElement
Parent MonitorSystem.Health.PerformanceState
AlgorithmWorstOf
CategoryStateCollection
EnabledTrue
Alert GenerateTrue
Alert SeverityMatchMonitorHealth
Alert PriorityLow
Alert Auto ResolveTrue
RemotableTrue
AccessibilityPublic
Alert Message
Available memory buffer 80-byte blocks Alert
{0}

Source Code:

<AggregateMonitor ID="Jalasoft.Xian.SmartManagementPacks.CiscoPix.Available80blocks.1.1" Accessibility="Public" Enabled="true" Target="ThirdParty_Cisco!Jalasoft.Xian.Common.Elements.ThirdParty.Cisco.JsXCiscoPixFirewallSnmpDeviceElement" ParentMonitorID="SystemHealth!System.Health.PerformanceState" Remotable="true" Priority="Normal">

  <Category>StateCollection</Category>

  <AlertSettings AlertMessage="Available80blocks_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>