FCB ageout in SRX550



  • Hi all,

    I have a customer with SRX550 cluster on which we are noticing a lot of the following logs:

    RT_FLOW: FLOW_REASSEMBLE_FAIL: FCB ageout before all fragments arrive ……

    This appears to be causing login problems for our clients on remote sites, but before I can tell for sure, I would like to know more about the FCB.
    Online documentation is scarse at best, but I understand that packets get split in 100-byte packets, and then reassembled. If that doesn’t work within the age-out of 3 seconds, the packet gets dropped.

    Does anyone have more experience with this kind of problems or know how to solve them?
    I know that on SSG you could alter some setting related to FCB pool, but I can’t find a similar option for SRX

    regards



  • Did you find a solution to this?  Have basically the same issue


 

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