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Forum Discussion

Maria123's avatar
Maria123
Icon for Altostratus rankAltostratus
Dec 06, 2019

Diagnose the LB_FAILED Event

FB_FAILED is occurring even if all the server nodes are available. In the iRule logged the [event info] but noting is coming.   Is there any way to identify or diagnose the reason for this?   ...
application delivery
iRules
LTM
skunk's avatar
skunk
Icon for Nimbostratus rankNimbostratus
Mar 09, 2021

Hello Maria,

We do have the same situation here: all PoolMember show UP, iRule event LB_Failed gets triggered and Event_Info is empty :-(

Max_Syn_Retransmit is set to 5 - no difference.

We do SNAT, so return path is fine ...

Could you please share your solution? Thanks in advance!