| http://www.w3.org/ns/prov#value | - For example, OSI layers 1 and 2 module may include a PHY/framer chip that implements a physical layer, such as Ethernet, and a datalink layer, such as HDLC. OSI layers 3 and 4 module 404 may include software that implements a network layer, such as Internet protocol and a transport layer, such as transmission control protocol or user datagram protocol.
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