#### Why I did it swsssdk will be deprecated. Use swsscommon instead. #### How to verify it Unit test
Why I did it HLD: https://github.com/Azure/SONiC/blob/master/doc/aaa/radius_authentication.md CLI: In a separate PR. How I did it How to verify it UT: src/sonic-host-services/tests/hostcfgd/hostcfgd_radius_test.py