[strongSwan] Issue with transmission of IKE DELETE INFORMATIONAL request messages during shutdown under high load

[Chinmaya Dwibedy]

Hi,
 
Recently during my scalability testing of charon with strongswan
version 5.0.4 and load tester plugin. I observed that after establishment of the tunnels (20,000 IPsec
tunnels),  if I trigger the #ipsec stop
command, it should suppose to send 20k IKE DELETE INFORMATIONAL  request messages to its peer. But I find , it
sends 14k messages  (approximately) only. 
 
 
Note that, with 1000 IPsec tunnels, I do not see this issue. Can
anyone please confirm that, whether it is an issue with strongswan ? If yes, is
there any patch available? Thanks in advance. 
 
Regards,
Chinmaya
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