It defines how data is formatted for transmission and how access to the physical media is controlled. | |
It establishes, manages, and terminates sessions between two communicating hosts. | |
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 provides the connectivity and path selection between two host systems that may be located on geographically separated networks. |
OSPF | |
EIGRP | |
RIP | |
IS-IS | |
ARP |
extended star | |
ring | |
token passing bus | |
star | |
bus |