Forum Discussion

Ben_Efrati's avatar
Ben_Efrati
Icon for Nimbostratus rankNimbostratus
May 04, 2023

iRule table usage in FLOW_INIT event

Hi, According to https://clouddocs.f5.com/api/irules/table.html table command is valid for all events except RULE_INIT Valid Events: ALL, except RULE_INIT I'm trying to use table command in FLOW...
application delivery
flow_init
irule
LTM
table
JRahm's avatar
JRahm
Icon for Admin rankAdmin
May 05, 2023

Hi Ben_Efrati, I checked the table source file documentation and there is nothing there that leaves out FLOW_INIT, however, I believe that's an oversight given the details on the FLOW_INIT event:

 
This event is triggered (once for TCP and unique UDP/IP flows) after packet filters, but before any AFM and TMM work occurs. The use cases for this event are:
  • Override ACL action
  • Bandwidth control on both client/server flows
  • Routing to another Vip
  • Marking qos tos/dscp on both client/server flows

I confirmed in my own local test that I am seeing the same behavior as you. You could open a case to get official confirmation, but I'm pretty confident you'll need to perform your lookups in CLIENT_ACCEPTED or later.