PowerMode IPsec support (vSRX 3.0)—Starting in Junos OS Release 20.1R1, PowerMode IPsec is a new mode of operation for vSRX instances that provides IPsec performance improvements using Vector Packet Processing (VPP) and Intel AES-NI instructions. PowerMode IPsec is a small software block inside the SRXPFE (SRX Series Packet Forwarding Engine) that is activated when PowerMode is enabled.
You enable PowerMode IPsec processing by using the set security flow power-mode-ipsec
command.