Hello VPP experts,
We are designing an application mainly acting as a SeGW, VPP is used as
fast-path, we have a slow-path application called ipsecAgent to manage ipsec
tunnels. ipsecAgent need to get the ipsec tunnel statistics from VPP to
trigger some features, such as , Re-key when packets/bytes reaches the
limitation, ipsec tunnel deletion when inactivity timer reached, etc. If we
use binary API to communicate between slow-path and VPP, I don't know if there
will be performance issue here, for example, if we support 100k ipsec tunnels,
slow path need to query the ipsec statistics every 5 seconds per tunnel, then
there will be 100000/5=20000 messages/s. What we are thinking of is if we can
use shared memory directly, i.e. VPP creates shared memory at startup phase,
and ipsec related statistics are stored and updated in this shared memory,
slow-path only map this shared memory and get statistics by reading shared
memory directly.
Is it more efficient ? or we can use other solution VPP already provided
but I don't know yet.
Thanks.
BRs,
Kevin
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