This layer is for Destination Addressing and specifies the
destination of a message on the network. This corresponds to the area
and long distance codes on the telephone network. Services provided by
this layer include:
- Node address information
- Routing of messages to segment and control network bandwidth usage
- Services such as determining which nodes on the network receive various messages.
- The ability to provide routers to segment the traffic and communicate between different physical media.
This layer is for End to End Reliability and defines the type of
services needed for the node messages depending on the level of
reliability required by the application. The services provided are:
- Broadcast addressing
- Unicast addressing
- Multicast addressing
- Repeated service
- Acknowledged service
- Unacknowledged service
- Duplicate packet detection
- Authentication
No comments:
Post a Comment