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Prakash_109945's avatar
Prakash_109945
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Sep 08, 2011

Disable/Turnoff a TMM

 

I am a newbie to using F5. I have an iRule which upon processing certain control traffic prepares a map of data which I share across multiple virtual servers. However I see that this map data cannot be shared across two different TMMs. Is it possible to have this data shared across different TMMs? If it isn't, is there a way to disable/turnoff one of the TMMs? I am okay with all my traffic being processed by only only TMM. I have web access to the F5 console.

 

 

Thanks for your help.

 

 

7 Replies

  • Hi Prakash,

     

     

    You can use subtables to share data across TMMs in a CMP compliant way:

     

     

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

     

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

     

     

    You shouldn't have to for this, but if you want to disable CMP on a virtual server, you can use:

     

    b virtual < virtual_server_name > cmp < disable|enable >

     

     

    See SOL7751 for details:

     

     

    sol7751: Overview of Clustered Multi-Processing

     

    http://support.f5.com/kb/en-us/solutions/public/7000/700/sol7751.html

     

     

    Aaron
  • Thanks for a quick response.

     

     

    When I attempt to use subtables, I get an iRule error saying "undefined procedure: table". Looking up online, the documentation specifies version 10.1 support for table command. Mine's is version 9. Is subtables intrdocued in version 10 and not available before?

     

     

    I disabled cmp on my virtual server, but I still see that more than one TMM is processing my traffic. To be clear with the problem, I have a SIP TCP virtual server that prepares the map and a UDP virtual server that receives RTP traffic which uses this map. I have two RTP streams hitting F5 and I want both of them to be processed by the same TMM that processed the initial SIP traffic. I right now see that the packets for these two RTP streams are being processed by different TMMs.

     

     

    Thanks.
  • subtables were added in 10.1. Which version of 9.x are you running?

     

     

    For 9.x you can use the session command to share key value pairs across TMMs:

     

    http://devcentral.f5.com/wiki/iRules.session.ashx

     

     

    Aaron
  • Here's an example of using the session table to store values:

     

     

    http://devcentral.f5.com/wiki/iRules.CMP_v10_compatible_counters_using_the_session_table.ashx

     

     

    Aaron