That's as it is now. A rework of the code is planned, no ETA yet...

Quoting mik...@yeah.net (2018-12-12 02:05:40)
>    W...What??? So the only way to make ip reassembly working correctly is to
>    keep one or more  interfaces attached to a single worker thread?
>    That does not sound efficient ......
> 
>    --------------------------------------------------------------------------
> 
>    mik...@yeah.net
> 
>       
>      From: [1]Klement Sekera
>      Date: 2018-12-11 20:39
>      To: [2]Mikado; [3]vpp-dev
>      Subject: Re: [vpp-dev] Any tricks in IP reassembly ?
>      Hi Mikado,
>       
>      if the fragments get split between multiple workers, then eventually
>      they'll get dropped after timing out ...
>       
>      Regards,
>      Klement
>       
>      Quoting Mikado (2018-12-11 08:52:28)
>      >    Hi,
>      >
>      >           I have noticed that  “ip4-reassembly-feature” node  only
>      >    reassembles packets stored in the local pool of each thread. But it
>      seems
>      >    not right if a group of fragment packages is handled by different
>      worker
>      >    thread. So is there any tricks in VPP  forcing the fragment
>      packages in
>      >    the same group dispatched to the same thread ? Or is it a bug ?
>      >     
>      >
>      >    Thanks in advance.
>      >
>      >    Mikado
> 
> References
> 
>    Visible links
>    1. mailto:ksek...@cisco.com
>    2. mailto:mik...@yeah.net
>    3. mailto:vpp-dev@lists.fd.io
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