Forum Discussion
How to trigger GTM iRule
This is a GTM iRULE v9.4.3
I am trying to trigger GTM iRule after GTM load balanced decision had occoured with iRule below. But for it is not returning any A record answer from my eastcoast_test_pool.
The Wideip is configured with a Pool using RTT to select one of the GTM pool member. Base on the pool member subnet address, and I want anser A record from east or west_test pool.
Am I using the wrong event for GTM?
when LB_SELECTED {
if { [IP::addr [LB::server addr]/24 equals "69.63.184.0"] } {
pool "eastcoast_test_pool"
} else {
pool "westcoast_test_pool"
}
}
4 Replies
Nicolas_MenantEmployee
To check if it is triggered you can insert some logging into your iRule, it should show you if you face a problem with the pool command or the event (if no logging appear at all).
If this is the pool command, do you see any weird messages in /var/log/ltm when the iRule is triggered?- I did some more testing and found out LB_selected event works. Pool command does not work in GTM irule.
I switch from pool command to cname commands and the iRule works.
What is the expected behavior for pool GTM iRule command? Should it re-load balance again after LB_selected?
when LB_SELECTED {
if { [IP::addr [LB::server addr]/24 equals "10.10.10.0"] } {
pool eastcoast_test_pool
} else {
pool westcoast_test_pool
}
} - Thanks nmenant!
Switching to DNS_REQUEST fixed the problem. - Nicolas_Menantit worked Oo ?
i removed this part of my message since i saw you were looking for the server IP address. Doesn't really make sense you can have the Server ip address here Oo
