The Network Layer Design Issues

 The network layer is one pf the most signification layers of the entire OSI Reference Model. The network layer is a layer at which the IP ...

 The network layer is one pf the most signification layers of the entire OSI Reference Model. The network layer is a layer at which the IP address works. If The communication is between two or more than system across different networks, then only we require the help of the IP address to transfer the data packet from one node to require the help of the IP address to transfer the data packet from one node to another, otherwise the hardware address supported by the data link layer is good enough for the transmission of the data packets between tow of more machines within the same network.
Some concepts that were kept in mind while designing the network layer are as follows :

1. The services should be independent of the subnet (a subset of the larger network} K also technology.

2. The transport layer should be shielded from the number, type and topology of the subnets present.

3. The network address made a available to the transport layer should use a uniform numbering plan across the different types of network starting from LAN to MAN to WAN.
The network layer of the ISO -OSI Reference Model supports both the connection oriented data streaming which is achieved through TCP and connectionless data streaming which is achieved through
UDP (Unreliable or User Datagram Protocol). The connection that is talked of in the above protocol should possess the following properties:

1. The source machine should first establish the connection to the destination machine. Each and every connection is identified and assigned a unique number which is released after all the data has been transferred from the source to the destination.

2. Mode of communication is kept full duplex have efforts are made so that packets are transmitted in doth the direction.
3. Both the source and the destination machine have the full right and authority that decide upon the various parameters, such as quality, cost duration, effort, of the devices that have to be used to provide the services.

Article -By Amit