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Lee_Jong_su_488's avatar
Lee_Jong_su_488
Icon for Nimbostratus rankNimbostratus
Apr 10, 2012

connection limit on VS and redirect page

Hi All,

 

I'm trying to make a irule for connection limit on VS and redirect page.

 

 

in example.

 

when the connection limit is a 1000 on Virtaul Server . if the connection of 1001 on virtaul server is coming , that would redirect to redirction page.

 

 

do you have some ideas?

 

Many thanks in advance.

 

 

 

 

 

application delivery
dev
devops
iRules

2 Replies

  • Antony_413's avatar
    Antony_413
    Icon for Nimbostratus rankNimbostratus
    Apr 10, 2012
    On the VS configuration there is a MAX connection limit,

     

     

    As you are using http, a http_profile could specify a fallback page URL. This is normally used for when the pool is unavailable, but I'm not sure if it would trigger in this case; try it and see.

     

     

    Failing this, with a bit of research the VS connection limit variable and current connections variable may be available to reference insid ethe iRule: (PSEUDO CODE BELOW, THIS IS NOT TCL)

     

    when HTTP_REQUEST {

     

    if [ $CURRENT_CONS > $VS_CONN_LIMIT]

     

    {

     

    HTTP::redirect https://my.domain/too_many_connections_page.html

     

    return

     

    }

     

     

    or similar?

     

    }
  • nitass's avatar
    nitass
    Icon for Employee rankEmployee
    Apr 10, 2012
    these might be useful.

     

     

    v10.1 - The table Command - Examples by Spark

     

    https://devcentral.f5.com/Default.aspx?tabid=63&articleType=ArticleView&articleId=2383

     

     

    iRule::ology - Table Based Rate Limiting by Colin

     

    https://devcentral.f5.com/Tutorials/TechTips/tabid/63/articleType/ArticleView/articleId/1086416/iRuleology--Table-Based-Rate-Limiting.aspx