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Cisco Bug: CSCvh89426 - SSL hardware offload performance worse with no decryption

Last Modified

Aug 21, 2019

Products (1)

  • Cisco ASA 5500-X Series Firewalls

Known Affected Releases

201.2(1) 201.2(1.140) 99.2(0.41)

Description (partial)

Enabling SSL hardware acceleration on a managed device that does not have active SSL policy results in poor performance compared to disabling SSL hardware acceleration. (An active SSL policy is a policy with at least one SSL action rule.)

We recommend you enable SSL hardware acceleration only on devices that decrypt SSL traffic.


A performance degradation compared to a device running with hardware SSL inspection disabled occurs when:

- SSL policy active with at least one Decrypt - Resign rule
- SSL hardware acceleration is enabled
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