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FTD_Routing_Hyd's avatar
FTD_Routing_Hyd
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Dec 07, 2016
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How to check active connections in icontrol ?

Hi, I need a help regarding F5 icontrol... When I disable a node using icontrol in powershell,it is disabled.I want to check the current connections on that node after disabling,I mean post disabling the node,for how much time it will have active connections ?I cannot find any predefined command in icontrol cmdlets for checking the active connections. Can anyone help ?

 

application delivery
BIG-IP
iControl
  • uchi_122495's avatar
    uchi_122495
    Dec 08, 2016

    Please use iControl REST API with 

    Invoke-RestMethod
    like below with your 
    username
    ,
    password
    and 
    bigip
    .

    PS> $securePwd = ConvertTo-SecureString "password" -AsPlainText -Force
PS> $credential = New-Object System.Management.Automation.PSCredential("username",$securePwd)

    you can see nodename list 

    PS> Invoke-RestMethod -Uri https://bigip/mgmt/tm/ltm/node/stats -Credential $credential | Format-List

    And you can see the stats of specified node with

    PS> Invoke-RestMethod -Uri https://bigip/mgmt/tm/ltm/node/{target-nodename}/stats -Credential $credential | Format-List

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  • FTD_Routing_Hyd's avatar
    FTD_Routing_Hyd
    Icon for Nimbostratus rankNimbostratus
    Dec 07, 2016

    Hi Uchi, I found the above post.My Big-ip product version is 11.6.1. The command - Invoke-RestMethod -Method GET -Uri '$select=addr,curSessions' is not working , to be more specific - when I type Invoke- and press tab the 'Restmethod' word is not populating

     

    Appreciate your prompt reply

     

  • uchi_122495's avatar
    uchi_122495
    Icon for Cirrus rankCirrus
    Dec 07, 2016

    Invoke-RestMethod
    is new command added from PowerShell v3. Is it installed on your client PC?

  • FTD_Routing_Hyd's avatar
    FTD_Routing_Hyd
    Icon for Nimbostratus rankNimbostratus
    Dec 07, 2016

    I am running Powershell v1.Is there any command for v1 to check the current connections ?

     

  • uchi_122495's avatar
    uchi_122495
    Icon for Cirrus rankCirrus
    Dec 07, 2016

    I don't know a lot about PS1. But I think there is a way to call http request from PS1.

     

  • FTD_Routing_Hyd's avatar
    FTD_Routing_Hyd
    Icon for Nimbostratus rankNimbostratus
    Dec 08, 2016

    Hi Uchi,

     

    I upgraded to V3 and I ran the following command with bigip user/pass and bigip ip address Invoke-RestMethod -Method GET -Uri '$select=addr,curSessions'

    I am getting the following error...

     

    ==========================================================

     

    Invoke-RestMethod -Method GET -Uri '$select=addr,curSessions'

    Please let me know,where I am going wrong

     

  • uchi_122495's avatar
    uchi_122495
    Icon for Cirrus rankCirrus
    Dec 08, 2016

    What error message did you get?

     

    Could you try accessing that uri with browser?

     

  • FTD_Routing_Hyd's avatar
    FTD_Routing_Hyd
    Icon for Nimbostratus rankNimbostratus
    Dec 08, 2016

    Thanks for your prompt reply,Uchi

     

    This is the error -

     

    Invoke-RestMethod : The remote server returned an error: (401) Unauthorized.

     

    The URI is accessible via browser

     

    Thanks

     

  • uchi_122495's avatar
    uchi_122495
    Icon for Cirrus rankCirrus
    Dec 08, 2016

    I guess 

    Invoke-RestMethod
    doesn't allow the syntax 
    https://username:password@bigip
    for basic auth. Please try below with your 
    username
    ,
    password
    and 
    bigip
    .

    PS> $securePwd = ConvertTo-SecureString "password" -AsPlainText -Force
PS> $credential = New-Object System.Management.Automation.PSCredential("username",$securePwd)
PS> Invoke-RestMethod -Uri https://bigip/mgmt/tm/ltm/node/stats -Credential $credential
  • FTD_Routing_Hyd's avatar
    FTD_Routing_Hyd
    Icon for Nimbostratus rankNimbostratus
    Dec 08, 2016

    Hi Uchi,

     

    The above syntax worked.. Thanks for the help!

     

    But,post running 'Invoke-RestMethod -Uri -Credential $credential',I receive the below results.

     

    kind selfLink entries

     

    tm:ltm:node:nodecollectionstats ... @{...

     

    How to go ahead,if I want to check the active connections on a particular node ?