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Forum Discussion

David_Stout's avatar
David_Stout
Icon for Nimbostratus rankNimbostratus
Oct 31, 2012

TCL error - Can't read variable

I am trying to re-write some iRules for CMP by removing the global variables however I'd like to know why I am getting this error. I'm not a complete TCL expert so some assistance is appreciated.   ...
application delivery
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iRules
nitass's avatar
nitass
Icon for Employee rankEmployee
Oct 31, 2012
i understand variable which is defined in RULE_INIT will be treated as global variable. so, we have to use $:: when referencing. what Steve suggested is totally right. 

[root@ve10:Active] config  b rule myrule list
rule myrule {
   when RULE_INIT {
   set org "test"
}
when HTTP_REQUEST {
   log local0. "\$::org is $::org"
}
}
[root@ve10:Active] config  cat /var/log/ltm
Oct 31 21:23:59 local/tmm info tmm[7926]: Rule myrule : $::org is test