10
Routing and Congestion Control
1. Explain the various design issues of the network layer.
Ans: The network layer provides an end-to-end communication between two hosts. There are mainly four design issues in the network layer, which are discussed as follows:
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Network Layer Interface: The network layer can follow two methods, namely, virtual circuit (connection-oriented network service) and datagram (connectionless network service) for sending packets from node to node. In the virtual circuit method, first a logical connection is established between the two communicating users and then the quality of service to be used is decided. All ... |
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