When apps attach to the session layer they request a given size for the shared
memory segment out of which fifos are allocated and also the sizes of the rx/tx
fifos for each connection. If the segment is filled, more shared memory
segments are allocated. However, if you’re running the builtin test
client/servers, segments are allocated out of vpp’s private heap. You can
circumvent this through config parameters:
- private-segment-size
- preallocate-fifos
You can check to see that things have worked by doing: “sh segment-manager
segments”.
Hope this helps,
Florin
> On Nov 22, 2017, at 9:00 PM, choonho@gmail.com wrote:
>
> Hi,
>
> I got tcp servers warning like,
>
> 0: segment_manager_alloc_session_fifos:464: No space to allocate fifos!
> 0: tcp46_listen_inline:2788: session accept fail
>
>
> DBGvpp# show session
> Thread 0: 2031 active sessions
>
> What is tunning parameter or codes to increase number of tcp session?
>
> Thanks,
> Choonho
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