Description We are using p1021 processor with quicc engine , we are using UCC in fast mode as well as siram,si,tdm , we are using it in nibble mode. we are able acheive 100mbps data rate in our radio . p1021 does not have hardware encryption , so we are using strongswan package , ipsec for ppp interface in tunnel mode. userdata -eth1 --ppp0 of radio 1 air interface - radi2 ppp0 -eth1-userdata., My tunnel is in between ppp0 , aes generic mode I am using . Without encryption we are getting 100Mbps With Encryption we are getting only 50Mbps . , we want 100mbps throughput with AES(specification) We have only two cores and all our quicc engine peripherals are on cpu0 . After tunnel formation I did not see any traffic on charon threads . When I am giving traffic only I am able to see active ksoftirq , kworker , and our main application.