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Slow Connection Using 12c Client When Network Encryption Is Enabled (Doc ID 2247689.1)

Last updated on MAY 01, 2019

Applies to:

Advanced Networking Option - Version and later
Information in this document applies to any platform.


On a 12c database configured with Oracle Network Encryption the connection using a 12c client is five times slower than the connection with an 11g client. This can be easily seen in the sqlnet traces generated for both cases:

1)  12c client to 12c server

(3519893248) [<DATE> 06:09:02:326] nam_gnsp: Reading parameter
 "SQLNET.CRYPTO_SEED" from parameter file
 (3519893248) [<DATE> 06:09:02:326] nam_gnsp: Found value
 (3519893248) [<DATE> 06:09:02:401] nacomsd: entry <--- 75 msec delay.
 (3519893248) [<DATE> 06:09:02:401] nacomrp: exit
 (3519893248) [<DATE> 06:09:02:493] naeccn: exit <---- 92 msec delay


 2) 11g client to 12c server


(1986175264) [<DATE> 06:10:56:903] nam_gnsp: Found value
 (1986175264) [<DATE> 06:10:56:906] nacomsd: entry <- 3 msec delay
 (1986175264) [<DATE> 06:10:56:906] nacomrp: exit
 (1986175264) [<DATE> 06:10:56:908] naeccn: exit <---- 2 msec delay





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