Mar 27, 2026 - For details about updated CVE-2025-53521 (BIG-IP APM vulnerability), refer to K000156741.

Forum Discussion

TSE_38012's avatar
TSE_38012
Icon for Nimbostratus rankNimbostratus
Apr 24, 2012

iRule implementation for limiting concorrent connections

Hello All,     We are running the BIG-IP LTM 1600 ver. 10.2.2     I need help to know how we can implement an iRule to limit the number of concorrent connection per server.     We ...
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hoolio's avatar
hoolio
Icon for Cirrostratus rankCirrostratus
Apr 25, 2012
Hi Ankit,

 

 

You could track current client IP addresses in a subtable and the current connection count in a table entry and only reject connections from clients not in a subtable when the connections hit your threshold. See Spark's table articles for details:

 

 

https://devcentral.f5.com/wiki/iRules.table.ashx

 

https://devcentral.f5.com/Default.aspx?tabid=63&articleType=ArticleView&articleId=2375

 

 

Aaron