It defines how data is formatted for transmission and how access to the physical media is controlled. | |
It provides the connectivity and path selection between two host systems that may be located on geographically separated networks. | |
It segments data from the system of the sending host and reassembles the data into a data stream on the system of the receiving host. | |
It establishes, manages, and terminates sessions between two communicating hosts. |
The Internet firewall must permit RFC 1918 addresses. | |
Network address translation is required on the Internet border device. | |
VLAN translation is required on the Internet border device. | |
A private to public VLAN must be defined on the Internet border device. |
UTP | |
STP | |
RJ-11 | |
RJ-45 | |
AUI | |
BNC |