For more information regarding the security incident at F5, the actions we are taking to address it, and our ongoing efforts to protect our customers, click here.

Forum Discussion

hui_37443's avatar
hui_37443
Icon for Nimbostratus rankNimbostratus
Nov 27, 2012

what happens if LB_FAILED is not handled

I've got a VIP which doesn't have an iRule to handle LB_FAILED, while the other one has. They have similar pool settings so that it is the same web application sitting behind the two VIP. Thus makes ...
application delivery
dev
devops
iRules
nitass's avatar
nitass
Icon for Employee rankEmployee
Nov 27, 2012
does client automatically retry by itself?

 

 

or is "Reselect Tries" configured?

 

 

However, beginning in BIG-IP version 10.x it is possible to cause a reselection by using the Reselect Tries advanced pool feature. This feature is equivalent to the LB::reselect iRule command. Once a connection attempt to a pool member is considered failed (equivalent to the LB_FAILED iRule event), the BIG-IP system selects a new pool member. Should that pool member also fail, the system repeats the reselection until it reaches the limit configured for this option. Only at this point is the client connection reset.sol10640: Pool member reselection options

 

http://support.f5.com/kb/en-us/solutions/public/10000/600/sol10640.html

 

 

just my 2 cents.