Bupa (pronounced /buËpÉ/) is an international healthcare group, with its origins and headquarters in the United Kingdom but now serving 32 million customers in 190 countries. It is a not-for-profit private healthcare company, as opposed to the UK's National Health Service (NHS), which is a tax-funded healthcare system.
IPsec is an end-to-end security scheme operating in the Internet Layer of the Internet Protocol Suite, while some other Internet security systems in widespread use, such as Transport Layer Security (TLS) and Secure Shell (SSH), operate in the upper layers at the Transport Layer (TLS) and the Application layer (SSH).
IEEE 802.1af provides authentication and cryptographic key distribution framework. Media Access Control (MAC) Security, often known as MACSec is a IEEE standard based protocol for securing communication among the trusted components of a 802.1 LAN.t is important to note that MACSec itself can not operate in itself to provide the promised services. It has to be used in conjunction with appropriate policies for complimentary and higher level protocol, and authentication and authorization framework and network management.