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Problem this snippet solves:

This example will illustrate how to examine the system level PVA statistics.

Continuing on with my series of applications on system level statistics, this application will look into the insides of the Packet Velocity ASIC (PVA) subsystem and dump out the available statistics for client and server based hardware offloaded processing.

Code :

#----------------------------------------------------------------------------
# The contents of this file are subject to the "END USER LICENSE AGREEMENT FOR F5
# Software Development Kit for iControl"; you may not use this file except in
# compliance with the License. The License is included in the iControl
# Software Development Kit.
#
# Software distributed under the License is distributed on an "AS IS"
# basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
# the License for the specific language governing rights and limitations
# under the License.
#
# The Original Code is iControl Code and related documentation
# distributed by F5.
#
# The Initial Developer of the Original Code is F5 Networks,
# Inc. Seattle, WA, USA. Portions created by F5 are Copyright (C) 1996-2007 F5 Networks,
# Inc. All Rights Reserved.  iControl (TM) is a registered trademark of F5 Networks, Inc.
#
# Alternatively, the contents of this file may be used under the terms
# of the GNU General Public License (the "GPL"), in which case the
# provisions of GPL are applicable instead of those above.  If you wish
# to allow use of your version of this file only under the terms of the
# GPL and not to allow others to use your version of this file under the
# License, indicate your decision by deleting the provisions above and
# replace them with the notice and other provisions required by the GPL.
# If you do not delete the provisions above, a recipient may use your
# version of this file under either the License or the GPL.
#----------------------------------------------------------------------------
param (
  $g_bigip = $null,
  $g_uid = $null,
  $g_pwd = $null
);

Set-PSDebug -strict;

#-------------------------------------------------------------------------
# function Write-Usage
#-------------------------------------------------------------------------
function Write-Usage()
{
  Write-Host "Usage: PsSystemPvaStats.ps1 host uid pwd";
  exit;
}

#-------------------------------------------------------------------------
# function Get-TimeFromTimeStamp
#-------------------------------------------------------------------------
function Get-TimeFromTimeStamp()
{
  param ($TimeStamp);
  $dt = new-object -typename System.DateTime
  $dt = $dt.AddYears($TimeStamp.year-1).AddMonths($TimeStamp.month-1).AddDays($TimeStamp.day-1);
  $dt = $dt.AddHours($TimeStamp.hour).AddMinutes($TimeStamp.minute).AddSeconds($TimeStamp.second);
  return $dt;
}

#-------------------------------------------------------------------------
# function Convert-To64Bit
#-------------------------------------------------------------------------
function Convert-To64Bit()
{
  param($high, $low);
  return ($high*[Math]::Pow(2,32))+$low;
}

#-------------------------------------------------------------------------
# function Get-StatisticLabel
#-------------------------------------------------------------------------
function Get-StatisticLabel()
{
  param($type);
  $label = "";
  
  switch($type)
  {
    "STATISTIC_PVA_CLIENT_SIDE_BYTES_IN" {
      $label = "Bytes - Client In";
    }
    "STATISTIC_PVA_CLIENT_SIDE_BYTES_OUT" {
      $label = "Bytes - Client Out";
    }
    "STATISTIC_PVA_CLIENT_SIDE_PACKETS_IN" {
      $label = "Packets - Client In";
    }
    "STATISTIC_PVA_CLIENT_SIDE_PACKETS_OUT" {
      $label = "Packets - Client Out";
    }
    "STATISTIC_PVA_CLIENT_SIDE_CURRENT_CONNECTIONS" {
      $label = "Connections - Client Current";
    }
    "STATISTIC_PVA_CLIENT_SIDE_MAXIMUM_CONNECTIONS" {
      $label = "Connections - Client Maximum";
    }
    "STATISTIC_PVA_CLIENT_SIDE_TOTAL_CONNECTIONS" {
      $label = "Connections - Client Total";
    }
    "STATISTIC_PVA_SERVER_SIDE_BYTES_IN" {
      $label = "Bytes - Server In";
    }
    "STATISTIC_PVA_SERVER_SIDE_BYTES_OUT" {
      $label = "Bytes - Server Out";
    }
    "STATISTIC_PVA_SERVER_SIDE_PACKETS_IN" {
      $label = "Packets - Server In";
    }
    "STATISTIC_PVA_SERVER_SIDE_PACKETS_OUT" {
      $label = "Packets - Server Out";
    }
    "STATISTIC_PVA_SERVER_SIDE_CURRENT_CONNECTIONS" {
      $label = "Connections - Server Current";
    }
    "STATISTIC_PVA_SERVER_SIDE_MAXIMUM_CONNECTIONS" {
      $label = "Connections - Server Maximum";
    }
    "STATISTIC_PVA_SERVER_SIDE_TOTAL_CONNECTIONS" {
      $label = "Connections - Server Total";
    }
    "STATISTIC_TOTAL_PVA_ASSISTED_CONNECTIONS" {
      $label = "Connections - Total Assisted";
    }
    "STATISTIC_CURRENT_PVA_ASSISTED_CONNECTIONS" {
      $label = "Connections - Current Assisted";
    }
    "STATISTIC_HARDWARE_SYN_COOKIES_GENERATED" {
      $label = "Hardware - Syn Cookies Generated";
    }
    "STATISTIC_HARDWARE_SYN_COOKIES_DETECTED" {
      $label = "Hardware - Syn Cookies Detected";
    }
    default {
      $label = "***UNKNOWN***";
    }
  }
  return $label;
}

#-------------------------------------------------------------------------
# Get-SystemPVAStatistics
#-------------------------------------------------------------------------
function Get-SystemPVAStatistics()
{
  $PVAStatistics = (Get-F5.iControl).SystemStatistics.get_all_pva_statistics();
  $t = Get-TimeFromTimeStamp $PVAStatistics.time_stamp;
  
  $hash = @{};
  
  $hash.Add("* Time Stamp", $t);
  
  $PVAStatisticEntries = $PVAStatistics.statistics;
  foreach($PVAStatisticEntry in $PVAStatisticEntries)
  {
$pva_id = $PVAStatisticEntry.pva_id;
$Statistics = $PVAStatisticEntry.statistics;
foreach($Statistic in $Statistics)
{
$val = Convert-To64Bit $Statistic.value.high $Statistic.value.low;
$label = Get-StatisticLabel $Statistic.type;
$hash.Add("[$pva_id] $label", $val);
}
  }

  $hash.GetEnumerator() | Sort-Object -Property Name | Format-Table -autosize
}

#-------------------------------------------------------------------------
# Do-Initialize
#-------------------------------------------------------------------------
function Do-Initialize()
{
  if ( (Get-PSSnapin | Where-Object { $_.Name -eq "iControlSnapIn"}) -eq $null )
  {
    Add-PSSnapIn iControlSnapIn
  }
  $success = Initialize-F5.iControl -HostName $g_bigip -Username $g_uid -Password $g_pwd;
  
  return $success;
}

#-------------------------------------------------------------------------
# Main Application Logic
#-------------------------------------------------------------------------
if ( ($g_bigip -eq $null) -or ($g_uid -eq $null) -or ($g_pwd -eq $null) )
{
  Write-Usage;
}

if ( Do-Initialize )
{
  Get-SystemPVAStatistics;
}
else
{
  Write-Error "ERROR: iControl subsystem not initialized"
}
Version history
Last update:
‎09-Mar-2015 12:11
Updated by:
Contributors