click below
click below
Normal Size Small Size show me how
OSI layers
Term | Definition |
---|---|
physical layer | Governs the layout of cables and devices such as repeaters and hubs |
data link layer | Provides MAC addresses to uniquely identify network nodes and a means for data to be sent over the Physical layer in the form of packets. Bridges and switches are ...... devices. |
network layer | Handles routing of data across network segments. |
transport layer | Provides for reliable delivery of packets. |
session layer | Establishes sessions between network applications. |
presentation layer | Converts data so that systems that use different data formats can exchange information. |
application layer | Allows applications to request network services. |